Response of Sorghum to Fertilizer Nitrogen And Phosphorus in Semi-Arid Areas of Machakos and Kitui Districts in Kenya

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Okalebo, J. R.
Keter, J. K.A.
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Cultivated sorghum (Sorghum bieolor (L.) Moench) is an important cereal for human and animal food. Its stalks are used as construction material and fuel in many countries. On the world production scene, sorghum ranks fifth after wheat, rice, maize and barley; more than 55% of the production is in the semi-arid tropics, with Africa and Asia being the major producers (Swindale, 1982). The crop is known to have a high grain yield potential of about 20 tons/ha (Doggett, 1970); but the high yield targets are not often realized, particularly in Africa, where wide variations in climate, soils and the incidences of diseases and pests drastically affect, yields In addition sorghum production in Africa has tended to lag behind' the 'human population. increase mainly because of its lower popularity arising from Its poor grain palatability (or grain quality), bird damage and relatively low market value.
East African Agricultural And Forestry Journal, 54 (3), p. 131-145