Selecciona los documentos para visualizarlos
Nombre del archivo | Ver recurso |
---|
Se han encontrado 29 recursos
Conservation agriculture (CA) based on hand-hoe prepared planting basins is being widely promoted in southern Africa, targeting resource-constrained farmers with limited access to draft power. This study was conducted across 15 districts covering four agro-ecological zones in Zimbabwe where paire...
Integrated soil fertility management (ISFM) involving a nitrogen-fixing grain legume, limited chemical fertilizer, and a resilient rice variety may reduce the rate of soil fertility loss and enhance rice productivity in fragile upland rice ecosystems. A 2-year, on-farm study was carried out at Eg...
Two varieties of soybean (Glycine max (L.) Merr.) and a maize (Zea mays L.) control crop were grown in replicated trials at 10 sites in the Guinea savana of Nigeria in 1993 followed by a test crop of maize in 1994 with 20 or 60 kg N ha-1 to test effect of soybean on subsequent maize grain yield. ...
Deux varietes de soya (Glycine max (L) Merr.) et une varietede mas (Zea mays L.) en temps que temoin ont ete cultivees en essais repliques sur 10 sites dans la savane Guineenne du Nigeria en 1993. Ces cultures ont ete suivies d'une culture-test de mais en 1994 avec 20 ou 60 kg N ha-1. L'augmentat...
Striga hermonthica, an obligate root parasite of grasses, is one of the most severe constraints to cereal production in sub-Saharan Africa. In the recent past, prior to increased production pressure on land, S. hermonthica was controlled in African farming systems by prolonged crop rotations with...
This study investigates the effect of different crop rotation systems on carbon (C) and nitrogen (N) in root biomass as well as on soil organic carbon (SOC). Soils under spring barley and spring barley/pea mixture were sampled both in organic and conventional crop rotations. The amounts of root b...
Macro-organisms contribute significantly to soil fertility improvement. The influence of conservation agriculture (CA) in southern Africa on their populations has not yet been fully understood. Thus, the objective of the current study was to evaluate the effects of CA and conventional tillage on ...
Selecciona los documentos para visualizarlos
Nombre del archivo | Ver recurso |
---|