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.
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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.
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Hocking, D., Sarwar, G. & Yousuf, S.A. Trees on farms in Bangladesh. Agroforest Syst 35, 1–13 (1996). https://doi.org/10.1007/BF02345325
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DOI: https://doi.org/10.1007/BF02345325