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Nitrogen recovery by alley-cropped maize and trees from 15N-labeled tree biomass in the subhumid highlands of Kenya
(Springer-Verlag, 2000-05)
The effectiveness of tree-leaf biomass as a source of N to crops in agroforestry systems depends on the rate at which crops can obtain N from the biomass. A study was conducted to determine the fate of 15N labeled, ...
Client focused extension approach for disseminating soil fertility management in central Kenya
(ESci Journals Publishing, 2014)
Land degradation and soil nutrient depletion have become serious threats to agricultural productivity in sub- Saharan Africa. To improve agriculture production, research has led to recommendation of a range of integrated ...
Maize yields Response to application of organic and inorganic input under on-station and on-farm experiments in Central Kenya
(Experimental Agriculture, 2008-12)
This study investigated the feasibility of using sole organics or a combination of organics with inorganic
fertilizer to improve maize production in on-station and on-farm experiments in central Kenya. In the
on-station ...
Long-term land management effects on soil properties and microbial populations in a maize-bean rotation at Kabete, Kenya
(African Journal of Agricultural Research, 2010-01)
The effect of continued application of mineral and organic fertilizers on soil agro-properties and soil microbial populations and activity, was studied in a long-term field experiment at Kabete, in the highlands of Kenya. ...
Organic and Mineral Input Management to Enhance Crop Productivity in Central Kenya
(American Society of Agronomy, 2009-09)
Organic resources (ORs) are important nutrient inputs in tropical agriculture. Combined with mineral fertilizers, they form the backbone of integrated soil fertility management. This study was conducted to determine the ...
Alley cropping of maize with calliandra and leucaena in the subhumid highlands of Kenya Part 1. Soil-fertility changes and maize yield
(Kluwer Academic Publishers., 1999-06-01)
Although N-rich leaf biomass of multipurpose trees is known to be a good source of
N to crops, integrating such trees into crop production systems is a major challenge in the development of viable agroforestry systems. ...
Effects of Organic and Mineral Fertilizer Inputs on Maize Yield and Soil Chemical Properties in a Maize Cropping System in Meru South District, Kenya
(Kluwer Academic Publishers, 2007)
Soil nutrient depletion as a result of continuous cultivation of soils without adequate addition of external inputs is a major challenge in the highlands of Kenya. An experiment was set up in Meru South District, Kenya in ...
Partial balance of nitrogen in a maize cropping system in humic nitisol of Central Kenya
(Kluwer Academic Publishers, 2006-11)
The application of nitrogen in a soil under agricultural production is subject to several pathways including de-nitrification, leaching and recovery by an annual crop. This is as well greatly influenced by the management ...
Effect of organic and inorganic nutrient sources on soil mineral nitrogen and maize yields in central highlands of Kenya
(Soil and Tillage Research, 2009-05)
High population pressure in the central highlands of Kenya has led to continuous cultivation of land with minimal additional inputs leading to soil nutrient depletion. Research work has reported positive results from use ...
Analysis of Household Energy Sources and Woodfuel Utilisation Technologies in Kiambu, Thika and Maragwa Districts of Central Kenya
(Academic Journals, 2012-02-01)
This study was carried out in Kiambu, Thika and Maragwa districts of Central Kenya. Its objective was to analyze household energy sources and utilization technologies used. Primary data was collected from households using ...