Decomposition of land nutrient release from ruminant manure on acid sandy soils in the Sahelian zone in Niger, West Africa

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dc.contributor.authorEsse, P. C.en
dc.contributor.authorBuekert, A.en
dc.contributor.authorHiernaux, P.en
dc.contributor.authorAssa, A.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialNigeren
dc.coverage.spatialWest Africaen
dc.date.accessioned2016-04-19T18:56:04Zen
dc.date.available2016-04-19T18:56:04Zen
dc.date.issued2001en
dc.descriptionMetadata only recorden
dc.description.abstractIn ago-pastoral systems of the semi-arid West African Sahel, targeted applications of ruminant manure to the cropland is a widespread practice to maintain soil productivity. However, studies exploring the decomposition and mineralisation processes of manure under farmers' conditions are scarce. The present research in south-west Niger was undertaken to examine the role of micro-organisms and meso-fauna on in situ release rates of nitrogen (N), phosphorus (P) and potassium (K) from cattle and sheep¯goat manure collected from village corrals during the rainy season. The results show that (1) macro-organisms played a dominant role in the initial phase of manure decomposition; (2) manure decomposition was faster on crusted than on sandy soils; (3) throughout the study N and P release rates closely followed the dry matter decomposition; (4) during the first 6 weeks after application the K concentration in the manure declined much faster than N or P. At the applied dry matter rate of 18.8 Mg ha-1, the quantities of N, P and K released from the manure during the rainy season were up to 10-fold larger than the annual nutrient uptake of pearl millet (Pennisetum glaucum L.), the dominant crop in the traditional agro-pastoral systems. The results indicate considerable nutrient losses with the scarce but heavy rainfalls which could be alleviated by smaller rates of manure application. Those, however, would require a more labour intensive system of corralling or manure distribution.en
dc.format.mimetypetext/plainen
dc.identifier1364en
dc.identifier.citationAgriculture Ecosystems and Environment 83(2001): 55-63en
dc.identifier.issn0167-8809en
dc.identifier.urihttp://hdl.handle.net/10919/66071en
dc.language.isoen_USen
dc.rightsIn Copyrighten
dc.rights.holderCopyright 2001 Elsevier Science B.V.en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSoil nutrientsen
dc.subjectSemiarid zonesen
dc.subjectSoil qualityen
dc.subjectNutrient recyclingen
dc.subjectManureen
dc.subjectSoilen
dc.subjectFertilizationen
dc.subjectTermitesen
dc.subjectCorrallingen
dc.subjectManureen
dc.subjectMilleten
dc.subjectNigeren
dc.subjectNutrient releaseen
dc.subjectDecompositionen
dc.subjectAcid soilsen
dc.subjectNitrogenen
dc.subjectPhosphorusen
dc.subjectMineralizationen
dc.subjectIn situ releaseen
dc.subjectFarm/Enterprise Scaleen
dc.titleDecomposition of land nutrient release from ruminant manure on acid sandy soils in the Sahelian zone in Niger, West Africaen
dc.typeAbstracten
dc.type.dcmitypeTexten

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