Sorghum grain yields under the karité and the néré are reduced by an average of 50% and 70% respectively, in comparison with yields in the open field. Soil fertility, limiting primary production in the region, is at least as favorable under the tree canopies as in the open field. Reduced light intensity, to a minimum of 20% under the néré canopy, is probably largely responsible for low sorghum production under the tree canopies. Benefits from the tree products are more valuable than losses in cereal yields, explaining why trees are maintained on the agricultural fields.
Pruning of tree branches, selection of (shade-) crops and tree selection could reduce crop yield losses but cannot be expected to increase tree- and crop production.
AN - 93-03353 BT - Agroforestry Systems C1 - Agroforest Syst C6 - 0167-4366; 1572-9680 DA - 02/1992 DB - link.springer.com.ezaccess.libraries.psu.edu DO - 10.1007/BF00053116 IS - 2 LA - English N2 -Sorghum grain yields under the karité and the néré are reduced by an average of 50% and 70% respectively, in comparison with yields in the open field. Soil fertility, limiting primary production in the region, is at least as favorable under the tree canopies as in the open field. Reduced light intensity, to a minimum of 20% under the néré canopy, is probably largely responsible for low sorghum production under the tree canopies. Benefits from the tree products are more valuable than losses in cereal yields, explaining why trees are maintained on the agricultural fields.
Pruning of tree branches, selection of (shade-) crops and tree selection could reduce crop yield losses but cannot be expected to increase tree- and crop production.
PY - 1992 SP - 97 EP - 118 T2 - Agroforestry Systems TI - The influence of karité (Vitellaria paradoxa) and néré (Parkia biglobosa) trees on sorghum production in Burkina Faso UR - https://doi.org/10.1007/BF00053116 VL - 17 ER -