Indian Journal of Agricultural Research, volume 37 issure 1 (march 2003) : 34 - 38
INFLUENCE OF PHOSPHORUS MANAGEMENT ON SOIL AVAILABLE PHOSPHORUS AND UPTAKE OF NPK IN A MAIZE-SUNFLOWER-COWPEA CROPPING SYSTEM
M, Kumaresan*, V.S. Shanmugasundaram, T.N. Balasubramanian
1Department of Agronomy.
Tamil Nadu Agricultural University, Coimbatore - 641 003, India