SHASHI PAL SINGH et al. 2001. ~ f f e c t of phosphorus and farmyard manure application on yield, content and uptake of nitrogen, phosphorus and sulphur by potato (Solanum tuberosum). Indian Journal of Agronomy. 41, 4 (Oct. 2001), 41_4 . DOI:https://doi.org/10.59797/ija.v41i4.3719.