Stover and Potassium Management in an Upland Rice-Soybean Rotation on an Indonesian Ultisol
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چکیده
منابع مشابه
Direct and residual phosphorus effects on grain yieldphosphorus uptake relationships in upland rice on an ultisol in West Africa
Phosphorus (P) deficiency is a major constraint to crop production on highly weathered, lowactivity clay soils in the humid zone of West Africa. Past research suggested a linear relationship between grain yield and P uptake over a range of fertilizer P applied to upland rice cultivars. However, there is lack of information on how these relationships are affected by the long-term fertilizer ...
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23 K.G. Cassman, P.W. Singleton b and B.A. Linquist International Rice Research Institute, Manila, Philippines NiFTAL Project, 1000 Holomua Ave, Paia, Hawaii, USA (Accepted 14 December 1992 Although biological N2 fixation (BNF) by legumes can provide significant N inputs to crop systems on highly weathered tropical soils, potential inputs from BNF largely depend on soil P supply. We compared th...
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ژورنال
عنوان ژورنال: Agronomy Journal
سال: 2000
ISSN: 0002-1962
DOI: 10.2134/agronj2000.921106x