Research Article
Phosphorus Requirements of Cereal Crops and Fertility Build up Factor in a Typic Camborthid Soil
Soil Salinity Research Institute, Pindi Bhattian, Pakistan
S.M. Mehdi
Soil Salinity Research Institute, Pindi Bhattian, Pakistan
A.M. Ranjha
University of Agriculture, Faisalabad, Pakistan
M. Sarfraz
Soil Salinity Research Institute, Pindi Bhattian, Pakistan