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  1. 1989-01-01 Agroforestry refers to the integration of trees and shrubs as essential elements of agricultural and other land use systems, with the idea of improving the fertility and productivity of the soil. In this concept, trees and shrubs can be deliberately managed (that is, established, tended,...
  2. 2014-04-20 There is no doubt in my mind that West African farmers want development if that means, among other things, more productive farming. Of course they would rather harvest seven than three sacks of sorghum per hectare. If that is so, why do so many choose not to engage in development projects that...
  3. 2013-01-20 “Farmers near Kabale in Kenya describe traditions, now considered superstitious, that certain euphorbias cause cancer when planted near the homestead.” Now the carcinogenic effects of one common living fence species,Euphorbia tirucalli, have been described. The active carcinogen has been found...