Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West

作者： B. Fofana , African Sahel , A. Bationo , M. C. S. Wopereis , H. Breman

DOI:

关键词: Soil management 、 Fertilizer 、 Soil carbon 、 Soil fertility 、 Stover 、 Nutrient 、 Grain yield 、 Agronomy 、 Mathematics

摘要: Field experiments were designed to inves- tigate the effectiveness of integrated soil fertility management (ISFM), comparing fertilizer use effi- ciency and its impact on millet, cultivated close homestead (''infields'') away from (''outfields''). Millet yields response N (0, 30, 60 kg ha -1 ) P 15, 30 determined nine infields outfields over a period 3 years (from 1999 2001) in southern Sahel Niger. Rainfall was 650, 470, 370 mm during three successive years, interaction between decreasing rainfall millet yield performance also analyzed. While organic carbon (1.5 g 1.6 infields) pH-H2O (4.8 5.1 comparable, total-N, plant available (measured as P-Olsen P-Bray), exchangeable Ca, K, Mg levels higher compared outfields. Without fertilizer, average grain (GY) stover obtained times high GY across treatments (P \ 0.001). Average 800 1,360

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Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West

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Millet nutrient use efficiency as affected by natural soil fertility, mineral fertilizer use and rainfall in the West

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