Opportunities to improve phosphorus efficiency and soil fertility in rainfed lowland and upland rice ecosystems

Author: Kirk G.J.D.   George T.   Courtois B.   Senadhira D.  

Publisher: Elsevier

ISSN: 0378-4290

Source: Field Crops Research, Vol.56, Iss.1, 1998-03, pp. : 73-92

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Abstract