Agricultural Science Digest, volume 33 issue 4 (december 2013) : 304-308
SOIL PHOSPHORUS FRACTIONS IN A TYPIC HAPLUSTEPT AS INFLUENCED BY ORGANIC SOURCES AFTER SOYABEAN (Glycine max L.) – WHEAT (Triticum aestivum) CROPPING SEQUENCE IN SEMI ARID CONDITION*
Anil Kumar, Neeraj Kumar, S.K. Singhal, Vinay Singh1, V. K. Sharma
1Division of Soil Science and Agricultural Chemistry,
Indian Agricultural Research Institute, New Delhi-110 012, Indian