EFFECTS OF WINDBREAK SPECIES AND MULCHING ON WIND EROSION AND MILLET YIELD IN THE SAHEL

Autor:	J. P. A. Lamers, Andreas Buerkert, Karlheinz Michels
Rok vydání:	1998
Předmět:	Crop residue biology Erosion control Agroforestry Bauhinia rufescens biology.organism_classification Windbreak Andropogon gayanus Agronomy Environmental science Cropping system Soil conservation Agronomy and Crop Science Mulch
Zdroj:	Experimental Agriculture. 34:449-464
ISSN:	1469-4441 0014-4797
DOI:	10.1017/s0014479798004050
Popis:	In an on-station agroforestry experiment conducted in south-west Niger, the effects of seven windbreak species and of a soil mulch made from crop residue on wind erosion and pearl millet (Pennisetum glaucum) production were monitored. Within a distance of 20 m, strips of the perennial grass, Andropogon gayanus, reduced total annual soil flux by 6–55% and hedges of Bauhinia rufescens 2 m in height reduced soil flux by 47–77% compared with unsheltered control plots. No significant overall windbreak effect on millet stover and grain yields was found. In contrast, erosion reduction and yield increases due to mulch application were highly significant. Soil mulch is a promising alternative to complex windbreak–millet cropping systems in regions where direct economic benefits for farmers are not ensured by windbreaks.
Databáze:	OpenAIRE
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