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Annual Report 2001

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ACIAR Project No. FST/2000/127

Improving and maintaining productivity of bamboo for quality timber and shoots in Australia and the Philippines.

ACIAR Project (FST/2000/127)

Annual Report

March 2001 – December 2001

Improving and maintaining productivity of bamboo for quality timber and shoots in Australia and the Philippines

March 2002 

Program area: Forestry

Geographic region: Southeast Asia

Commissioned organization: CQUniversity (CQU)

Project leader: Prof. David Midmore

Executive Summary

ACIAR Project (FST/2000/127):   Improving and maintaining productivity of bamboo for quality timber and   shoots in Australia and the Philippines

Bamboo comprises an extremely adaptable group of perennial grass   species, with both temperate (the running type) and sub/tropical (the   clumping type) groups represented. Despite being a long-utilised plant,   information on how to manage plantations or natural stands is   unavailable. As a consequence, bamboo in the Philippines is   over-exploited largely for timber, and in Australia the sustainable   yield of bamboo is not known.

The ACIAR project FST/2000/127 has been structured primarily to   provide data about the responsiveness of clumping bamboo species to a   range of agronomic practices. From these results, strategies on how to   manage bamboo to rehabilitate existing degenerated stands for shoots and   timber production (objective 1), and maximise and sustain productivity   in plantations, can be formulated and advised (objective 2).

During 2001, experiments were successfully established in the   Philippines and Australia . Although the species of bamboo are different   at different locations, the experiments are complementary in that they   examine the effects of the major determinants of plant production.

Implicit in a study of established bamboo plantations, is the fact   that at the start of an experiment, all existing culms have been   initiated and grown by the plant at an earlier time. The culms may be   from 1-4 years old depending on the thinning strategy being employed. In   all the experiments that have been established in this project all   plantations and natural stands had been previously unmanaged, so the   yield and quality of existing culms reflect that lack of management.

In this project, it will be necessary to manage the bamboo treatments   for at least three years before the shoots and timber culms that are   harvested truly reflect the treatment imposed. In the Philippines , the   first true harvest of shoots will occur in May 2003 and of timber culms   in 2004 (4-year old treatments will be one year later). In Australia the   first true harvest of shoots is in December 2003 and of timber in July   2004. Evaluating the treatment effects across years will require 2   further harvests.

A third objective of this project is to assess timber quality of   bamboo species and the impact of plantation management. The purpose of   this work is to formulate new and improved uses of bamboo in timber   products.

Another function of this project is to promote communication between   bamboo growers, bamboo scientists, forest product specialists and the   makers and sellers of bamboo products. To this end the project provides   opportunities for bamboo people to meet and travel to and around either   the Philippines or Australia . In the first year a Philippine contingent   visited commercial bamboo plantations in Australia at Rockhampton,   Eumundi, Byron Bay and Darwin, and a factory producing bamboo   surfboards.

The project links with INBAR-funded research and development on the   use of bamboo to limit erosion and stabilise riverbanks and, in   Australia with studies on waste-water dissipation. Minor objectives   include arguing the case for carbon credits to be accorded to bamboo,   the development of simple culm quality assessments and labour-saving   pole harvesting equipment, and investigating the potential for bamboo   pulp for making paper.

The project commenced on 1 March 2001; two months after its official starting date.

A. OVERVIEW OF OBJECTIVES AND OPERATION

Objectives

There are three major objectives of this project. The first is to   study and implement a process to rehabilitate existing aged/and or   damaged bamboo stands for shoot and timber production. Secondly the   project aims to develop management technologies for sustainable and high   productivity of existing bamboo plantations for shoots and timber. The   third objective is to improve the efficiency and quality of the bamboo   timber harvest.

By way of the project itself, a consequence (and minor objective) of   this work is to contribute to the knowledge network in Australia and   Southeast Asia and so build on and foster the work of INBAR and other   bamboo groups.

The project has been structured around a series of empirical   experiments involving the management of bamboo spread around Australia   and the Philippines. Formal and informal meetings are being organised to   foster and promote associations between bamboo people and to formulate   commercial arrangements.

Timetable and Personnel

The project commenced on 1 March 2001, two months after its   designated starting time. This delay had no material impact on the   intended activities of the first year, except to delay and reorder the   schedule.

The personnel involved in the project and the collaborating   institutions are listed in Table 1. Steve Ockerby was contracted to the   position of Research Officer at CQUniversity in March 2001. His role is   to coordinate the project in association with the project leader Prof   David Midmore, secondly to facilitate and support the experimental work   at Eumundi and lastly to foster the bamboo network.

Review of project objectives

The project has broad objectives towards the outcome of establishing   and promoting viable bamboo industries in Australia and the Philippines.   This is a complex task: in the Philippines bamboo is a traditional and   important internal product but processing, manufacturing and marketing   of bamboo is not orientated towards high-value export products. In   Australia, the production and processing of bamboo is in its infancy,   but high-value manufacturing and marketing systems are functioning. The   problem is how to engage the two, while maintaining a cognisance of the   beneficial role that bamboo may also play in ecological issues such as   soil stabilisation and carbon sequestration.

The question as to whether the project can pursue those objectives,   given the moderate resources available to it, will be raised at the   annual project meeting in the Philippines in February 2002. If so,   priorities will be established on work to be undertaken.

                               
Table 1. Project personnel and their institutions at 30 December 2001.

Australia:

         

CQUniversity

       
  •            
  • Prof. David J. Midmore
  •          
  • Mr Steve Ockerby
  •          
  • Ms Maurine Hill (Administration)
  •        
       

Department of Primary Industries and Fisheries, Darwin , NT

       
  •            
  • Mr Mark Traynor
  •          
  • Mr Matt Darcey
  •          
  • Mr Chris Wicks
  •        
       

Bamboo Plant Earth, Winnellie , NT

       
  •            
  • Mr Richard Kingsley
  •        
       

Bamboo Australia , Eumundi, Qld

       
  •            
  • Mr Durnford Dart
  •        
       

Bamboo Surfboards Australia , Byron Bay , NSW

       
  •            
  • Dr Shale Gordon
  •        
       

Mullumbimby Bamboo, Mullumbimby, NSW

       
  •            
  • Mr Martin Hartmann
  •        
       

Pal Enterprises, Noonamah , NT

       
  •            
  • Mr Phil Vivian
  •        
       

ACIAR, Canberra

       
  •            
  • Mrs Heather Crompton
  •        
       

Philippines:

       

Forestry and Environment Research Division, Philippine Council for   Agriculture, Forestry, and National Resources Research and Development,   Laguna

       
  •            
  • Dr Nimfa Toreta
  •        
       

Department of Environment and National Resources

       
  •            
  • For. Myrna Decipulo
  •        
       

Ecosystems Research and Development Bureau

       
  •            
  • For. Felixberto V. Capadocia
  •        
       

Sumpong, Malaybalay City

       
  •            
  • Ms Lydia E. Tiongco
  •        
       

Forest Products Research & Development Institute

       
  •            
  • Dr Marina Alipon
  •          
  • Ms. Zenita B. Espiloy
  •        
       

Ilocos Agricultural and Resources Research and Development Consortium, Mariano Marcos State

       
  •            
  • Dr Stanley C. Malab
  •          
  • Prof Beatriz S. Malab
  •        
       

University, Batac, Ilocos Norte

       

Department of Environment and National Resources Technical Services, Iloilo City

       
  •            
  • Dr Conrado Marquez
  •          
  • Engr. Neil Gigare
  •        
       

Cadagamayan Bamboo Craft Producers Association Sta. Barbara, Iloilo

       

Panay State Polytechnic College – Dumarao Campus Codingle, Dumarao, Capiz

B. PROGRESS OF RESEARCH WORK (By Site)

ILOCOS NORTE ( Mariano Marcos State University ), THE PHILIPPINES

Procedure/Methodology

The objective of the trials was to identify water, nutrient and culm   harvesting technologies that optimize and sustain the production of   edible shoots and poles from Bambusa blumeana (Kawayan tinik).   The experimental approach was to compare variants of water nutrient and   culm management technologies within and between a diverse range of   established and natural bamboo plantations in the Philippines and   Australia. The approach requires that a control treatment, based on a   presumed optimal set of technologies, is consistent across sites.   Treatment comparisons are then derived at each site to assess the   important issues at that site and identify better management   technologies.

Two major experiments were established in 2001. The managed   plantation experiment was established at the Experimental Forest   Reservation of the Mariano Marcos State University, Batac, Ilocos Norte.   The rehabilitation of natural bamboo stand was set up in farmers'   fields in two towns of Ilocos Norte.

Sub-Project 1. Rehabilitation of Existing Bamboo Stands (Managed Bamboo Plantation )

The managed plantation experiment was established in the 2.5 hectare   MMSU Bamboo Plantation in Batac, Ilocos Norte, Northern Philippines. The   plantation was established in 1992 to demonstrate strategies on bamboo   plantation development and served as site of various studies on nutrient   management and watershed studies.

Clumps were at 7m x 7m spacing. Soil was characterised and   temperature and rainfall were monitored from the University   Meteorological Station.

Uniformity testing was conducted by removing all poles older than   three years - based on the research findings that this is the optimum   age of bamboo for timber harvesting. A uniform 4-4-4 poles per clump was   established i.e. 4 of 1 year old, 4 of 2 years old and 4 of 3 years old   poles. The ANOVA and ANOCOVA were used to verify priori differences of   culm diameter.

Thirteen treatments were established with three replications and two   clumps per plot, arranged in randomised block design. Treatments are   those of the control except as noted.

  •  
  • T1 - Control – deficit-based irrigation, mulch, organic matter and fertilizer
  •  
  • T2 - Without irrigation
  •  
  • T3 - Dry-season irrigation only
  •  
  • T4 - Without fertilizer
  •  
  • T5 - Without mulch, organic matter or fertilizer
  •  
  • T6 - 3-3 culm thinning
  •  
  • T7 - 3-3-3 culm thinning
  •  
  • T8 - 4-4-4 culm thinning
  •  
  • T9 - No culm thinning - harvest 3 year-old culms
  •  
  • T10 - 6-6-6 culm thinning
  •  
  • T11 - 8 culms left each 2nd year
  •  
  • T12 - Cleaning of thorns only, without irrigation
  •  
  • T13 - Do nothing

Fertilizer applied to each clump was 4:1:4 - N:P:K and 250 kg N/ha   split between two application times. The second application was done two   months after the first application. Organic matter was applied at 0.2 m   3 chicken manure and 0.4 m 3 sawdust per clump. Mulch was collected   from the accumulated bamboo leaves and other debris found around the   clump.

Prior to application of all treatments, soil and leaf samples were   collected from each plot. Soil samples were taken from the 0-12 cm and   12-25 cm soil depth. These measurements were made to derive   relationships for nutrient sufficiency levels. The pH ranges from 7-7.3.   Organic Matter was 0.86-1.2%, phosphorous 288-339 ppm, and potassium   91-135 ppm. Total rainfall was quite high in year 2001 reaching 2000mm   associated with two strong typhoons in July and September. The last rain   was recorded in November.

A drip irrigation system was installed to provide the irrigation   requirements to test whether irrigation is necessary during the   non-shoot season. Evaporation rates and soil moisture in strategic   locations were recorded to assess the relationships to shoot emergence,   elongation and diameter rates. During the shoot season, shoots that   emerged were recorded weekly. Shoots that were intended to grow for   timber were marked for later measurements of growth. Those to be   harvested were cut every week. Selection of new timber culms was done in   the middle of the shoot season, leaving one good-sized shoot at the   middle and others at the extremity of the clump.

Sub-Project 2 Natural Bamboo Stand

The experiment for the rehabilitation of natural bamboo stands was   set-up in five farmers field in Batac and Sarrat, Ilocos Norte.   Contracts with the farmers were signed for the duration of the study   stipulating responsibilities of each party in the conduct of research.   Initial site data was gathered before the treatments were imposed. Five   treatments was considered by the farmers:

  •  
  • T1 - Cleaning all thickets by harvesting 4 year old and older poles and stumps
  •  
  • T2 - Cleaning with fertilizer applied at a rate of 250 kg N/ha
  •  
  • T3 - Cleaning with irrigation
  •  
  • T4 - Cleaning with fertilizer and irrigation
  •  
  • T5 - Farmers' practice

Farmers were selected based on their interest, existence of their own   bamboo clumps, and their commitment. Their component was their   willingness to commit their bamboo clumps as sample plots and provide   labour in the cleaning, irrigation, and providing security to   experimental clumps. The project provided the input such as fertilizer   and the chainsaw provided by the project for use in the cleaning   operations. The farmers have very limited knowledge on bamboo   technologies that improve productivity and utilization.

Highlights of Accomplishment (March-December, 2001)

Importance and Implication of Results

Initial observations gathered on the condition of the bamboo   plantation, data on shoot and pole development, indicate some areas to   monitor for future activities. An analysis of soil physical properties   shows that OM content is low and similar to the open areas, despite the   plantation being ten years old. The irrigation treatments are expected   to contribute to the improvement of this factor. Investing in this   component of the research work is vital. There is complete recording of   weather data (rainfall, temperature, evaporation, humidity, typhoon,   etc.) for the project. Other observations especially of the growth and   development of the shoots and poles need to be formulated to provide the   clearest picture of the research work.

In anticipation of the possible problems and to provide support to   the project, four biology students from MMSU set up their experiments in   the research site. The investigations are very relevant to help explain   the present poor growth of the bamboo plants and are focused on the   following areas: (a) Biomass composition (cellulose, hem-cellulose,   lignin, starch) of Bambusa blumeana at different growth stages,   (b) Pulping potential at different growth stages, (c) Rate of litter   decomposition in the ground level, and (d) Characterization of the   microflora and microfauna of the plantation.

A social mobilization program on the promotion of bamboo technologies   was conducted by 2001 MMSU development communication graduate students.   One of the technologies promoted was on the management of bamboo   clumps. The farmers in the project were among the participants and they   were brought to the experiment site and to see for themselves the   techniques used. They were then made aware of the purpose and benefits   of improving the productivity of their degenerating old bamboo clumps.   These initial techno-promotion activities are paving the way of   transferring the technology to the intended clientele of the project.

Problems encountered

The two experimental sites, managed plantation and natural stand   set-up, were established in June 2001. After the establishments of the   experimental plots, two strong typhoons, one in July and the other in   September hit the province. Many of the poles left to grow were damaged,   toppled-down and the shoots destroyed. The new shoots were broken while   others rotted because of the prolonged water logging. These phenomena   provided directions to institute some management measures to overcome   the problems brought about by the calamity.

The irrigation facilities were not installed until December 2001   because the water source that is 4 km away was undergoing repair. No   irrigation treatments were imposed but gravimetric soil moisture was   recorded. The Micro-Gopher was not also installed, for security reasons   and we need assistance from the Project Research Officer to make sure   that the equipment is used properly. The visit of the Australian   Research Officer in September 2001 to support this activity was   postponed due to world instability.

Plan of activities for CY2002

The project in Ilocos Norte has made a major stride in the   implementation of the project by the setting up the experiments in the   two research sites as programmed in the project document. A number of   relevant data was initially gathered but the observations made were not   sufficient to make concrete conclusions. The commitment of the Ilocos   Norte group in the project, the Project Research Officer, and the   Philippine counterpart contributed much to the timely setting up of the   experimental sites. Likewise, the timely provision of the equipment   (chainsaw, irrigation sprayers, micro-gopher) from Australia allowed the   research to move faster.

The project, over the seven months of implementation, has succeeded   in meeting the programmed activities. Future work plans will be   implemented as programmed.

 ILOILO (DENR Region 6), THE PHILIPPINES

Procedure/Methodology

Following the major objectives of the project, the activities at the   sites in Western Visayas address the concerns of rehabilitating existing   degenerated stands for production of shoots and timber; and maintaining   high productivity in managed plantations.

Experiments and treatments for the two sub-projects were agreed upon   during a reconnaissance survey conducted by Steve Ockerby of   CQUniversity together with Dr. Nimfa Torreta of PCARRD and the Project   Personnel from the DENR-Technical Services, Region 6, Iloilo City on May   17-20, 2001.

Sub-Project 1. Rehabilitation of Existing Natural Bamboo Stands

Expected Output: Productivity multiple times greater

Assumption: Productivity is generally low.

Objectives: Define best methods for rehabilitation, and pass methods to other interested farmers and regions.

Design and layout:

Location: Cadagmayan Norte, Sta. Barbara, Iloilo . Existing natural stands of B. blumeana (Kawayan tinik) with variable clump spacing.

Experimental Design: Randomized Complete Block Design with 5 replicates

Treatments:

  •  
  • T1 - Control - no thinning, no fertilizer, harvest culms after 3 years
  •  
  • T2 - 6-6-6 - maintain 6 1-year old culms, 6 2-year   old culms and 6 3-year culms; apply fertilizer (2.4 kg urea and 2 kg   potassium chloride per year) and mulch
  •  
  • T3 - 8-8 with fertilizer - maintain 8 1-year old culms and 8 2-year old culms; apply fertilizer (same rate as above) and mulch
  •  
  • T4 - 8-8 without fertilizer - maintain 8 1-year old culms and 8 2-year old culms; no fertilizer but apply mulch
  •  
  • T5 - Farmers' practice

Data Parameters:

Number and weight of new vegetable shoots harvested.

Yield and size (diameter and length) of culms harvested annually.

Quality (physical properties: cell wall thickness, modulus of   rupture, modulus of elasticity, and moisture content) of culms harvested   annually.

Activities undertaken:

  •  
  • Identified the study site
  •  
  • Layout of experimental clumps by plots
  •  
  • Cutting (harvesting) of culms based on treatment
  •  
  • Periodic data collection
  •  
  • Analysis of data and report writing

Sub-Project 2. Maintenance of Productivity of Bamboo Plantation

Expected Output:

Sustainable high productivity and year-round production.

Assumption:

With current practice, productivity will further decrease with strong seasonality.

Objectives:

  •  
  • Define best plantation management techniques
  •  
  • Pass techniques to the interested farmers and regions

Design & Lay-Out:

Location: Dumarao Pilot Bamboo, Dumarao, Capiz. Existing 2 year-old plantation of B. blumeana (Kawayan tinik) with a 7 m x 7 m clump spacing.

Experimental Design: Randomized Complete Block Design with 3 replications

Treatments:

  •  
  • T1 - Control - maintain 4 1-year old culms and 4 2-year old culms   (4-4); with irrigation; apply fertilizer (2.6 kg urea, 2.0 kg potassium   chloride, and 0.5 kg phosphorous per clump per year) and mulch
  •  
  • T2 - Without irrigation – other treatments as for control
  •  
  • T3 - Strategic irrigation - irrigate 10 weeks before shooting starts plus other treatments the same as control
  •  
  • T4 - No fertilizer with mulch - no inorganic fertilizer is applied but all other treatment as for the control
  •  
  • T5 - No fertilizer and no mulch - no inorganic fertilizer nor mulch but all other treatments as for the control
  •  
  • T6 - (3-3) - maintain 3 1-year old culms and 3 2-year old culms per clump with all other treatments as for the control
  •  
  • T7 - (3-3-3) - maintain 3 1-year old culms, 3 2-year old culms and 3   3-year old culms per clump with all other treatments as for the control
  •  
  • T8 - (4-4-4) - maintain 4 1-year old culms, 4 2-year old culms and 4   3-year old culms per clump with all other treatments as for the control
  •  
  • T9 - Harvest 3-year old timber culms yearly with all other treatments as for the control. No shoot harvest
  •  
  • T10 - (6-6) - maintain 6 1-year old culms and 6 2-year old culms and   harvest all 3-year old culms with all other treatments as for the   control
  •  
  • T11 - 8 culms maintained in year 1 and year 3 and harvest 3-year old   culms - a form of 2-year clear fell with nursing culms (0-6 months old)   at the start of each cycle with all other treatments as for the control
  •  
  • T12 – Clump untreated

Data Parameters:

  •  
  • Shoot production
  •  
  • Soil N, P, K status and plant N in leaves and shoots

Activities:

  •  
  • Identification of study site
  •  
  • Laying-out of experiment by plots
  •  
  • Cutting (harvesting) of culms based on treatment
  •  
  • Periodic data collection
  •  
  • Analysis of data and report writing

Highlights of Accomplishment (May – December, 2001)

Project implementation in Western Visayas region commenced on May 20,   2001 during the official visit of the Australian counterpart   represented by Dr. Steve Ockerby of CQUniversity and the Project Leader   Dr. Nimfa Torreta from PCARRD. The visit officially realized the   collaborative undertaking between entities for the development of the   region's flagship commodity, bamboo, towards improved productivity for   quality timber and shoots. Following were the activities undertaken from   the period covering May-December 2001,

Preparation of lay-out/design based on identified treatments for both sites.

The layout and experimental design of the project was prepared on the   basis of the project objectives set forth and the reconnaissance survey   conducted in the two study sites. The preparation, to include the   activities above-mentioned was conducted in coordination with the DENR   Region 6 Representatives headed by ARED Rainer M. Ecang, and Conrado   Marquez and Neil Gigare who were designated as the project implementers   for Region 6.

Baseline or benchmark data were gathered for experimental clumps at   the two study sites. Data included: number of culms per clump; age of   each culm and corresponding height and diameter; number of shoots; data   were taken prior to the application of treatments.

Equipment used for the two sub-projects, particularly chainsaw (with   accessories) and a micro-gopher were provided by ACIAR. All other   supplies and materials (Fertilizers, oil/lubricant and gasoline, etc.)   were locally procured.

The treatments were applied to experimental clumps after the   benchmark data were collected. Treatments applied, with differing   rates/intensities were as follows: harvesting; fertilizer, cultivation   and mulching. The treatment on irrigation under sub-project 2, however,   will be applied only upon the installation of the system in the early   months of CY 2002. Hence, except for irrigation, all treatments   scheduled for the first year of the project have already been applied.

A topographic survey of the Dumarao site was conducted towards the   end of May 2001, so to design the irrigation system. In the preparation   of the irrigation system design, a topographic survey was conducted in   Dumarao site. The map was then sent to Dr. Ockerby in CQUniversity for   the finalization of the design of the irrigation system to be installed.

A Research Aide, hired by the project, is monitoring study sites.   Relevant data (shoot production, mortality, etc.) are being gathered on a   weekly basis and documented.

Collaboration is occurring with organizations at each of the study   sites. These are the: Cadagmayan Norte Bamboo Craft Cooperative,   Cadagamyan Norte, Sta. Barbara, Iloilo for Sub-Project 1; and the Panay   State Polytechnical College (PSPC), Dumarao Campus, Dumarao, Capiz for   Sub-Project 2. Both entities provide the study site and are involved in   the monitoring and documentation of project activities.

Problems encountered

The delay in the setting-up/installation of the irrigation system may   not provide the necessary result during the first year of the project.   The irrigation system has not been established because of the   non-procurement of the poly pipes as required of the design (due to   delayed fund release), although the fitting and other irrigation parts   are already available (provided by ACIAR).

The project implementers will be setting-up the irrigation system   starting January 2002 and hope to apply the irrigation treatment before   the onset of the dry season in late February.

BUKIDNON (DENR Region 10), THE PHILIPPINES

Procedure/Methodology

The experiment evaluates the nutrition (fertilizer application) and harvesting regimes in a 15-year old giant bamboo ( Dendrocalamus asper )   plantation. Specifically it aims to rehabilitate the existing aged   and/or damaged giant bamboo and maintain its high productivity for shoot   and timber production. In doing so, it will evaluate the interactive   effects of fertilization and cutting intensity on the regenerative   capacity of bamboo in terms of culm and biomass yield.

Assumption:

The plantation is not managed, and has been affected by fire – low productivity will continue without evidence of production.

Objectives:

Define best plantation management techniques to optimise timber and   shoot production. Pass techniques to the interested farmers and regions.

Design & Lay-Out:

Location: Impalutao, Impasugong, Bukidnon

Experimental Design: Randomized Complete Block Design with 3 replications

Treatments:

  •  
  • T1 - Full nutrition (240 N, 50 P, 240 K) and mulch
  •  
  • Leaving 6 culms of 1999 and 2000 emergents (6-6)
  •  
  • T2 - Apply mulch but no fertilizer
  •  
  • Leaving 6 culms of 1999 and 2000 emergents (6-6)
  •  
  • T3 - Apply fertilizer but no mulch
  •  
  • Leaving 6 culms of 1999 and 2000 emergents (6-6)
  •  
  • T4 - Apply no mulch and no fertilizer
  •  
  • Leaving 6 culms of 1999 and 2000 emergents
  •  
  • T5 - Apply mulch and fertilizer
  •  
  • Keep all new culms, harvest only 3 years old and above
  •  
  • T6 - Apply mulch and fertilizer
  •  
  • Leaving 10 culms of 1999 and 2000 emergents (10-10)
  •  
  • T7 - Apply mulch and fertilizer
  •  
  • Leaving 6 culms of 1998, 1999 and 2000 emergents (6-6-6)
  •  
  • T8 - Apply mulch and fertilizer
  •  
  • Leaving 4 culms of 1999 and 2000 emergents (4-4)
  •  
  • T9 - Do nothing. Only mark the culms
  •  
  • T10 - No cultural treatment. Harvest only culms 3 year old and above.

Highlights of Accomplishment (May – December, 2001)

Implementation in the field started by identifying and delineating   the area for the experiment. The existing plantation was marked and   delineated into blocks taking into consideration the population of the   clump.

A total of 30 experimental clumps (3 replicates) were identified and   marked. After having identified the experimental clumps, benchmark data   were gathered. The treatments were applied to the experimental clumps.   Axe, bolos and a chainsaw were used in cutting the culms leaving about   0.5 to 1.0 meter stump. Due to the gigantic size of the bamboo culms, a   carabao (water buffalo) was used to pull out the harvested culms.

The mulching materials used were corn leaves and stalks that are the most available mulching material in the area.

Shoots were observed to start emerging in June until September.   Weekly monitoring on the survival and growth of shoots was done.

Analysis of nitrate content and N status in the shoot of giant bamboo was done using the borrowed Merq Reflectometer .

****

FPRDI, LAGUNA, THE PHILIPPINES

BASIC PROPERTIES EVALUATION OF SILVICULTURALLY TREATED BAMBOO SPECIES IN THE PHILIPPINES (FPRDI)

Project Objectives

To determine the anatomical, chemical, physical and mechanical properties of Bambusa blumeana (Kawayan tinik) from Ilocos Norte; with and without silvicultural treatments.

Methodology

Fifteen (15) bamboo culms of 3-year old kawayan tinik were collected   from 3 experimental blocks in Mabaling, Batac, Ilocos Norte. These   bamboo materials will serve as the control for the experiment.

Each bamboo culm was cut into 3 equal portions to represent the butt,   middle and top. Samples from each portion were taken for anatomical,   chemical, physical and mechanical properties analyses.

In general, the standard procedure of the American Society for   Testing Materials Designation (ASTM 1998) for small clear specimens of   timber and Indian Standard 6874 (IS) (Anonymous 1973) were followed.   Since bamboo differs in shape and configuration, slight   modification/deviation of test procedures were in accordance with the   FPRDI method.

Highlights of Accomplishment (May – December, 2001)

For the experimental site in Mabaling, Batac, Ilocos Norte the   average ash content of 3-year old kawayan tinik from Ilocos Norte was   slightly higher than the range values reported by Espiloy (1996) for 6   mature but unknown age of Philippine bamboo species and 3-year old   bamboo such as kayali, laak, Malayan bamboo and 10 Chinese bamboo   species. Ash represents the non-volatile, non-combustible inorganic   matter of the raw material. It is a measure of the minerals salts and   other inorganic matter. High ash content is undesirable if the material   is to be used for making machine-intensive products and for the   manufacture of dissolving pulp.

The relative density was generally higher at the top than the butt   and middle. It has been established that the higher the relative density   the higher the cellulose content. Therefore, the upper portion of culm   may probably be utilized for various purposes as for construction, pulp   and papermaking, rather than leaving it unutilised and to become waste   materials.

The effect of block (I, II and III) and culm/block on the mechanical   properties of kawayan tinik was significant except in maximum crushing   strength.

The research results will be used to compare the extent of   improvement of bamboo properties in response to silvicultural treatments   applied. Comprehensive basic properties' evaluation of bamboo culms   (control and treated) will determine the optimum utilization of the   materials.

Research on efficient and maximum utilization of bamboo culms with   and without treatment for various end products could be explored through   comprehensive evaluation of results on basic properties of bamboo.

Problems encountered

The very limited budget allowed the proponent to base the test results on only one site/locality (i.e. Ilocos Norte).

The large number of samples to be analyzed and tested made it more   difficult for the proponent to make ends meet. The budget could only   accommodate so much and it may not fully attain the objectives set forth   for the research.

****

EUMUNDI, QUEENSLAND, AUSTRALIA

Procedure/Methodology

The objective of the trial is to develop plantation management for an   established 8 year-old plantation of the clumping bamboo species Bambusa olhamii .   The clump spacing is 7 m between rows and 4-5m between clumps. The   trial focuses on the issues relating to clump management, irrigation,   fertiliser and timber shoot selection. The trial uses a 5-5 culm number   strategy, such that each year 5 one- year old and 5 two-year old culms   are retained in the clump; 5 new shoots are left each year to develop   into culms.

Expected Output: Management strategies that maximise and sustain edible shoot and timber   harvests. Measurements of biomass productivity and resource use   efficiencies.

Assumption: Productivity   is currently low in the unmanaged plantation, and projections on   maximum sustainable production for both edible shoots and timber are not   known.

Objectives: To assess the contribution of irrigation, nutrition and culm selection on the growth of B. oldhamii .

Design and layout:

Location: Bamboo Australia , Belli Park , Eumundi , Queensland .

Experimental Design: Randomized Complete Block Design with 4 replicates

Treatments:

  •  
  • T1 - Control - early-season selection of shoots to be left as timber   culms designed to maintain a widely-spaced clump. Fertiliser and   irrigation. Edible shoots to be harvested.
  •  
  • T2 - Narrow Spacing - early-season selection of shoots to be left   for timber culms designed to maintain a tightly-spaced clump. Fertiliser   and irrigation. Edible shoots to be harvested.
  •  
  • T3 – Late-season shoots - late season selection of shoots to be left   as timber culms designed to maintain a widely-spaced clump. Irrigation   and fertiliser. All edible shoots to be harvested.
  •  
  • T4 - Rhizome stress - no harvest of edible shoot and harvesting of   excess timber culms only just prior to next shoot season. Late season   selection of shoots to be left as timber culms designed to maintain a   widely-spaced clump. Irrigation and fertiliser.
  •  
  • T5 - Dry-season stress - early season selection of shoots to be left   as timber culms to maintain a widely-spaced clump. Water stress during   the dry season by way of no irrigation. Fertiliser.
  •  
  • T6 - Unmanaged clump - water stress by way of no irrigation and no fertiliser.

Irrigation is applied only to the clump area (3.5 m max dia.) to   replace pan evaporation validated by use of tensiometers. Fertiliser   (NPK at 4:1:4) is applied to match nutrient removal based on nitrate   levels in shoots with Merck RQFlex and natural mulch.

Specific logistics of the experiment.

The irrigation aspect requires that each clump (forming a treatment   plot) is kept dry or irrigated in isolation from the rest of the trial.   Initial thinning to impose wide vs narrow spacing.

The trial was established in August 2001 when clumps were thinned to a   uniform 5 one-year and 5 two-year old culms. Baseline measurements of   culm diameter were taken and the irrigation system installed.   Tensiometers to monitor soil water were installed in two treatments   (control and no irrigation) per replicate in December 2001.

The following measurements are being taken during the shooting season   between December 2001 and April 2002: edible shoot production (number   and weight), size and vigour of timber culm growth, monitoring of plant   and soil water status in selected plots.

Problems encountered

Belli Park is currently a dust bowl, experiencing unseasonally dry   weather, and thus there is insufficient water to apply irrigation   treatments. The normal pattern of shoot production by B. oldhamii appears   to be restricted, so we also have some problems applying the timber   shoot selection treatments. Progress and the implications of these   issues need to be evaluated in May 2002.

**** 

DARWIN , NORTHERN TERRITORY , AUSTRALIA

Procedure/Methodology

Three experiments have been established to develop plantation management for the clumping bamboo species Dendrocalamus latiflorus and D. asper .   The trials focus on the issues relating to clump management, irrigation   and fertiliser mostly in relation to the production of edible shoots.

Expected Output: Management strategies that maximise and sustain edible shoot harvests   and provide estimates of sustainable timber yields. Measurements of   biomass productivity and resource use efficiencies.

Assumption: Productivity   is currently not measured in the unmanaged plantation, so projections   on maximum sustainable production for both edible shoots and timber are   not known.

Objectives: To assess the contribution of irrigation, nutrition and culm selection on the growth of Dendrocalamus latiflorus and D. asper.

Designs and layouts:

Location: CPHRF (NT Government Horticulture Research Farm) Middle Point, Coastal Plains. Dendrocalamus latiflorus , 2.5 year old, are planted in 8 m row and 7 m clump spacings.

Experimental Design: Randomized   Block Design with 3 replications of 3 irrigation treatments and 2   fertilizer treatments. This trial uses a 4-4-4 thinning schedule, such   that each year 4 one- year old, 4 two-year old and 4 3-year old culms   are retained in the clump; 4 new shoots are left each year to develop   into culms.

Progress: Initial   thinning of 2-year old clumps in June 2001 to 12 culms total. Diameters   of all remaining culms were recorded to test uniformity. Fertilizer   treatments commenced after leaf analysis in October 2001. Shoot harvest   and shoot selection ongoing during wet season. Poor monsoon conditions   have slowed shooting. Irrigation monitoring to commence March 2002.

Location: Berry Springs, Darwin Rural Area

Commercial Collaborator: Richard Kingsley, Bamboo Planet Earth.

Experimental design: Randomised block with 3 replications of 2 irrigation, 3 fertilizer and 3 thinning treatments. The plantation is 3.5 year old D. asper (pai tong keo) in 12 m row and 6 m clump spacings. This plantation is organically managed.

Progress: Thinning   treatments imposed in October 2001. Diameters of all remaining culms   were recorded to test uniformity. After leaf testing in October, organic   fertilizer was applied to the treatments. Shoot harvest and shoot   selection conducted by grower. Irrigation system and monitoring gear to   be installed by early March 2002.

Location: Old Bynoe Road , Darwin Rural Area

Commercial Collaborator: Phil Vivian, PAL enterprises.

Experimental design: Randomized   block with 3 replications of 2 irrigation, 3 fertilizer and 3 thinning   treatments. The plantation is a single wind-break row of 3.5 year old D. latiflorus clumps planted 6 m apart.

Progress: Thinning   treatments imposed in August 2001. Diameters of all remaining culms were   recorded to test uniformity. Fertilizer treatments were applied after   leaf analysis in October. Follow up testing showed excellent treatment   response to nitrogen inputs. Shoot harvest and shoot selection conducted   by grower. Irrigation monitoring gear to be installed early March 2002.

C. TRAVEL AND MEETINGS

Communications within the project have been achieved through several   domestic and international gatherings of personnel, and via email. There   has been some confusion regarding the date on which the project   started: really 1 March 2001 but nominally and now understood for   accounting and reporting purposes to be 1 January 2001.

The project has recently developed a website, outlining the project's   purpose, activities and progress. It can be found at:   http://www.ahs.cqu.edu.au/info/science/psg/research/bamboo/index.htm

Table 2 is a summary of visits and study tours undertaken in   association with the project. Detailed trip reports are available on the   website.

Table 2. Details of travel undertaken.

                                                                   
Person(s) Travelling Date of Travel/Place Purpose Highlights

Prof. David Midmore (CQU)

         

 

       

 

       

Dr. Stanley Malab (MMSU)
          Dr. Marina Alipon (FPRDI)
          Dr. Nimfa Torreta (PCARRD)
          David Midmore Steve Ockerby (CQU)
          Dr Yiping Liu (INBAR)

       

Steve Ockerby (CQU)

       

 

       

 

       

Prof David Midmore

       

 

       

Steve Ockerby (CQU)
          Mark Traynor (NTDPIF)

       

 

       

Steve Ockerby
          Prof. David Midmore

November, 2000
        (Philippines)
       
       
       
       
       
       
        7-21 March 2001
        (Rockhampton, Byron Bay , Eumundi, Darwin , Australia )

         

 

       

 

       


          May 2001
          (Manila, Los Banos, Iloilo, Mindanao, Philippines.

       

 

       


          July 2001
          Mindanao, Philippines

       


          October 2001
          Darwin, Australia

       

 

       

 

       

August, September,
          December 2001
          Eumundi , Australia

To discuss the proposed project with prospective project implementers and visit the proposed site in Ilocos Norte.

         

To attend an ACIAR funded training and orientation session with Centre for Plant and Water Science of CQUniversity

       

 

       

 

       


          To assist the proponents in developing the research treatments and in setting-up the experiments.

       


          Review experiment establishment, shoot nitrate method testing

       


          To finalise experimental plans and collaborator responsibilities.

       

 

       

Implement experiment at Eumundi

The visit helped in finalizing the bamboo project for ACIAR funding

         

 

       

The visit served as the initial exposure and planning meeting between project staff from Australia and the Philippines .

       

 

       

 

       


          Exchange of experimental ideas and finalising experimental plans.

       

 

       

Issues of experimental procedure clarified

       

 

       

Three experimental sites finalized and thinning treatments undertaken.

       

 

       

Experiment established.