Determination of Critical Quality of Green Manure Application for Improvement of Soil Fertility of Nitisol in Maize (ZEA MAYS L.) Production

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Date
1999
Authors
Maobe, S. N.
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Samson N Maobe
Abstract
Declining soil fertility is a constraint to food production in most of the developing world (Van Reuler and Prins, 1993., Smaling, 1993). Kenya is no exception as agricultural production is concentrated in 25% of the total land area with dense human settlement and rapid population growth. Farming is intensive in attempt to produce enough food for the increasing human population. This has put a lot of pressure on land with the result that there is rapid decline in soil fertility (Stahl, 1993). The situation is worsened by use of little or no inorganic fertilizers due to erratic availability and high cost which is beyond the reach of most smallholder farmers (Mose et aI., 1996) and major losses through soil erosion (Gachene, 1997).
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