Ministry Of Agriculture NAL Soil And Agricultural Chemistry Annual Report 1980

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Date
1980
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Ministry Of Agriculture
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A total of 13,590 samples 15% less than the previous year were analysed during the year of which 9970 were soils, 2880 plant materials, 306 agricultural chemicals, 234 irrigation waters, 102 fertilizers and manures and 98 feedstuffs. Mean maize grain yields from the maintenance and improvement of soil fertility trials on nitosols varied from 3480 kg/ha at Kisii to 5570 kg/ha at NAt and 5960 kg/ha at Embu, from either manure alone or with the compound fertilizer. Lower grain yields were recorded from the Luvisol at Katumani because of the drier conditions. However grain yields were increased by applying fertilizer with or without manure and by mulching.
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