Fish By-Product as a Soil Amendment for Millet and Groundnut Cropping Systems in Senegal

Autor:	Richard P. Dick, Mamadou Ndiaye, Charles F. Yamoah
Rok vydání:	2000
Předmět:	chemistry.chemical_classification Horticulture Biology biology.organism_classification Nutrient Fish meal Agronomy chemistry Alfisol Organic matter Soil fertility Agronomy and Crop Science Stover Organic fertilizer Pennisetum
Zdroj:	Biological Agriculture & Horticulture. 17:329-338
ISSN:	2165-0616 0144-8765
DOI:	10.1080/01448765.2000.9754853
Popis:	Soils of the groundnut (Arachis hypogaea) L. basin of Senegal are impoverished with low fertility and organic matter content. Previously, farmers maintained yields of millet (Pennisetum glaucum (L.) R. Br. and groundnut with subsidized inorganic fertilizers and fallow periods to restore soils. Fish meal or by-product in various forms is a commercial commodity worldwide, but in Senegal the non-edible portion of fish (intestines, bones, scales and gills) are often discarded after processing. A three-year study was conducted on processed fish by-products as a soil amendment for millet and groundnut productivity. Chemical analysis showed that the processed fish byproducts are high in major nutrients such as N, 5.35%; P, 4.17%; K, 0.92%; Ca, 9.77%; and Mg, 0.36%. Consequently, the application of the processed fish by-products significantly (p < 0.05) increased millet grain from 0.29 Mg ha−1 in the control plot (no fish by-product) to 2.50 Mg ha−1 with 6 Mg ha−1 fish by-product. Millet stover yield was...
Databáze:	OpenAIRE
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