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Overnight respiration losses of whole plants were measured in a young maize crop grown in the humid tropic zone of Western Nigeria. In an older crop, ...Read more
After burning tropical evergreen seasonal forests and tropical marsh forests, and replanting with Pinus caribbea, soil N decreased for a period of 4 y...Read more
Measurements were made of the changes in reserves of plant nutrients in leaf litter and surface soil that occur when tropical evergreen forests and ma...Read more
The effects of bush clearing, cultivation and crop protection with DDT on surface casting activity and populations of earthworms were monitored over a...Read more
This document reports on a literature review that assessed promising pulse options to safeguard food security, nutrition and environment conservation ...Read more
Sampling of earthworm populations during 5- and 15-yr-old cropping phases and in 5-, 10- and 15-yr-old fallow phases of shifting agriculture at Shillo...Read more
Seed yields of cowpea (Vigna unguiculata) were assessed in each of two annual growing seasons over the 4-year period 1973 to 1976 in experimental plot...Read more
Surface fire has increasingly been regarded as a critical threat to tropical forests, but much of the research documenting degradation of tropical for...Read more