Record Details

Replication data for: Intercropping Teak (Tectona grandis) and Maize (Zea mays): Bioeconomic Trade-off Analysis of Agroforestry Management Practices in Gunungkidul, West Java

World Agroforestry - Research Data Repository Dataverse OAI Archive

View Archive Info
 
 
Field Value
 
Title Replication data for: Intercropping Teak (Tectona grandis) and Maize (Zea mays): Bioeconomic Trade-off Analysis of Agroforestry Management Practices in Gunungkidul, West Java
 
Identifier https://doi.org/10.34725/DVN/PG6BZI
 
Creator Khasanah, Nimatul
Perdana, Aulia
Manurung, Gerhard
Roshetko, James
van Noordwijk, Meine
 
Publisher World Agroforestry - Research Data Repository
 
Description Producing high quality wood meeting export standards requires intensive tree management. Using a tree-crop interactions model (WaNuLCAS) we analyzed tree management practices in intercropped teak and maize compared to teak and maize monocultures. Tradeoff analysis in intercropped teak and maize was designed in a three-treatment factorial: initial teak density (1600 trees ha-1 (2.5m × 2.5m), 1111 trees ha-1 (3m × 3m) and 625 trees ha-1 (4m × 4m)), thinning intensity (light (25%), moderate (50%) and heavy (75%) of tree density), and pruning intensity (40% and 60% of crown biomass). Cumulative maize yield in the first 5 years of teak growth increased 10% – 38% when tree density was reduced. All simulated intercropping practices produced a higher wood volume then a monoculture, as trees benefit from crop fertilization. Maximum wood volume (m ha-1) was obtained at initial tree density of 625 trees ha-1, 25% of which was thinned in year 5 and another 25% in year 15 with 40% of the crown pruned in years 4, 10 and 15. However, greater stem diameter as can be obtained with further thinning is rewarded with higher market price per volume of wood. Profitability analysis taking into account the cost of labour (for maize production, thinning and pruning) and its effect on additional timber revenue showed that the highest Net Present Value and return to labour was provided by the system with 50% thinning in year 5. Economic optimization was not sensitive to variations around the default price assumptions.
 
Subject Agricultural Sciences
Ex-ante analysis
Agroforestry
Silviculture
Trade-off analysis
Smallholder teak
 
Contributor Hendrawan, Dienda CItasyari Putri