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Library Fertility management and landscape position: farmers' use of nutrient sources in western Niger and possible improvements

Fertility management and landscape position: farmers' use of nutrient sources in western Niger and possible improvements

Fertility management and landscape position: farmers' use of nutrient sources in western Niger and possible improvements

Resource information

Date of publication
декабря 2003
Resource Language
ISBN / Resource ID
AGRIS:US201400064738
Pages
55-66

Poor millet growth and yields in Niger are commonly attributed to rainfall deficits and low soil nutrient content. Land management by local farmers is done as a function of soil types, crops, and available resources. Farmer management practices in millet fields located on four different landscape positions were studied in a village in western Niger located near the 600 mm isohyet. Average distance from homestead to field was 980 m, with fields in the valley bottom much closer (average 225 m) and fields on the plateau much further (average 2300 m). Farmers considered the valley and plateau fields slightly more fertile than the other fields, but rainfall infiltration on plateau fields is often relatively poor. Nitrogen and phosphorus contents in the soil were highest on the less intensively cropped plateaus. More than 50% of the fields did not receive any applied nutrients other than during livestock grazing of leftover stover. Manure application was done through corralling in only four of the fields studied (20%), out of which three were farmed by Fulani using their own herds for manuring. There was no significant effect of landscape unit on yield, though yields in the valley and on the upper slope were slightly higher than average. Millet grain yields, soil carbon and soil phosphorus decreased significantly with distance from the living quarters. This may be because manuring usually takes place close to home (average distance in 1997

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Authors and Publishers

Author(s), editor(s), contributor(s)

Gandah, M.
Brouwer, J.
Hiernaux, P.
Duivenbooden, N. van

Data Provider
Geographical focus