Field-scale influence of karité (Vitellaria paradoxa) on sorghum production in the Sudan zone of Burkina Faso.
作者： J.-M. Boffa , S. J.-B. Taonda , J. B. Dickey , J.-M. Boffa
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摘要: Sorghum (Sorghum bicolor L. Moench) production in 15 transect blocks, each with a karite (Vitellaria paradoxa C. F. Gaertn.) tree at end, was evaluated on-farm village of southern Burkina Faso season below-average rainfall. Under crowns, plant height and grain yield were significantly lower, by factor 16% for yield, than elsewhere transects. In addition, mean height, biomass per area as well higher the outside edge crowns middle field. Soil moisture content decreased increasing distance from 0–20 cm soil layer. Top soils also richer organic carbon potassium around blocks. performance zone under canopies projected field scale compared to central controls. Grain parklands trees crown radii 225 275 cm, average densities 12 31 trees/ha areas without trees. Therefore, farmers do not improve cereal reducing parkland below these levels. When nut is included analysis, maintaining fields can be economically advantageous all densities.
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