| dc.date.accessioned | 2007-03-23T12:11:50Z | |
| dc.date.available | 2007-03-23T12:11:50Z | |
| dc.date.issued | 2001 | |
| dc.identifier.issn | 0167-8809 | |
| dc.identifier.uri | urn:nbn:de:hebis:34-2007032317480 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/2007032317480 | |
| dc.format.extent | 143949 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | eng | |
| dc.rights | Urheberrechtlich geschützt | |
| dc.rights.uri | https://rightsstatements.org/page/InC/1.0/ | |
| dc.subject | Corralling | eng |
| dc.subject | Manure | eng |
| dc.subject | Millet | eng |
| dc.subject | Niger | eng |
| dc.subject | Nutrient release | eng |
| dc.subject | Termites | eng |
| dc.subject.ddc | 630 | |
| dc.title | Decomposition of and nutrient release from ruminant manure on acid sandy soils in the Sahelian zone of Niger, West Africa | eng |
| dc.type | Aufsatz | |
| dcterms.abstract | In 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 tha (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. | eng |
| dcterms.accessRights | open access | |
| dcterms.bibliographicCitation | In: Agriculture, Ecosystems and Environment. Amsterdam : Elsevier. 83.2001, S. 55-63 | |
| dcterms.creator | Esse, P. C. | |
| dcterms.creator | Bürkert, Andreas | |
| dcterms.creator | Hiernaux, P. | |
| dcterms.creator | Assa, A. | |
| dc.description.everything | The original publication is available at www.elsevier.com | eng |
| dc.subject.swd | Niger | ger |
| dc.subject.swd | Düngemittel | ger |
| dc.subject.swd | Hirse | ger |
| dc.subject.swd | Nährstoffaufnahme | ger |
