Trees on farms in Bangladesh |
| |
| Authors: | D Hocking G Sarwar S A Yousuf |
| |
| Institution: | (1) Thrushes, Stroud Lane, Steep, GU32 1AL Petersfield, Hants, UK;(2) Swiss Development Cooperation, G.P.O. Box 928, Dhaka, Bangladesh |
| |
| Abstract: | Seasonal yields of wetland rice and wheat were measured under traditionally-managed field trees of five species in northwestern
Bangladesh over four years. There was a variable depression of rice (Oryza sativa) and wheat (Triticum aestivum) yields under all tree species. Yield depression overall ranged from 16% for the light-canopiedAcacia catechu to a little over 40% for the dense-canopiedArtocarpus heterophyllus andMangifera indica. Percentage yield depression was independent if agroecological zones, years, and location of the trees on the margins of
centrally in a field. Yield depression in the dry season extended further in area than in the wet season; and for most tree
species was to some extent alleviated by availability of irrigation. Farmers were well aware of and accepted crop yield losses
under different tree species in return for the tree products. Trees with greatest impact on crops yielded products of highest
value, mainly fruits and leaf fodder.
Previous articles 1, 2 and 3 in the series appeared in Agroforestry Systems 25: 193–216, 31: 39–57 and 33: 231–247 respectively,
with slightly different main titles. |
| |
| Keywords: | canopy density farmer attitudes seasonality direction |
| 本文献已被 SpringerLink 等数据库收录！ |
|
