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2017•Zenodo (CERN European Organization for Nuclear Research)Open access

A Comparative Study on the Nutrient Composition of the Biogas Slurry and other Organic Fertilizers used by Small Scale Farmers in Kenya

Nyangau Jared, Gatebe Erastus, Nyagah Christopher, Njugi Alex, Stephen O. Ahenda

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Abstract

A study was taken to compare the chemical composition of three organic fertilizers; biogas slurry, farmyard manure and slurry compost used by small scale farmers in Kajiado, Kiambu and Nakuru counties in Kenya for agricultural purposes. Proper utilization of the organic fertilizers can reduce the use of mineral fertilizers by 50% therefore reducing the cost of production. Both macro and micro nutrients: Nitrogen, Phosphorous, Potassium, Calcium, magnesium, Manganese, Copper, Iron and Zinc were analysed using the Standard Operating Procedures and compared to Kenyan organic fertilizer standards. The analysis indicated great variability in the levels of the nutrient composition from one organic fertilizer type to another.

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What this paper is about

A study was taken to compare the chemical composition of three organic fertilizers; biogas slurry, farmyard manure and slurry compost used by small scale farmers in Kajiado, Kiambu and Nakuru counties in Kenya for agricultural purposes. Proper utilization of the organic fertilizers can reduce the use of mineral fertilizers by 50% therefore reducing the cost of production. Both macro and micro nutrients: Nitrogen, Phosphorous, Potassium, Calcium, magnesium, Manganese, Copper, Iron and Zinc were analysed using the Standard Operating Procedures and compared to Kenyan organic fertilizer standards. The analysis indicated great variability in the levels of the nutrient composition from one organic fertilizer type to another.

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Available abstract

A study was taken to compare the chemical composition of three organic fertilizers; biogas slurry, farmyard manure and slurry compost used by small scale farmers in Kajiado, Kiambu and Nakuru counties in Kenya for agricultural purposes. Proper utilization of the organic fertilizers can reduce the use of mineral fertilizers by 50% therefore reducing the cost of production. Both macro and micro nutrients: Nitrogen, Phosphorous, Potassium, Calcium, magnesium, Manganese, Copper, Iron and Zinc were analysed using the Standard Operating Procedures and compared to Kenyan organic fertilizer standards. The analysis indicated great variability in the levels of the nutrient composition from one organic fertilizer type to another.

Key concepts: Slurry, Biogas, Composition (language), Nutrient, Scale (ratio), Environmental science, Agronomy, Waste management

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A Comparative Study on the Nutrient Composition of the Biogas Slurry and other Organic Fertilizers used by Small Scale Farmers in Kenya — Research Paper | ScholarLens