Abstract:
A field experiment was conducted during kharif 1992-94 in a sandy loam acid laterite soil
to study the effect of graded doses of phosphorus and sulphur on the yield and nutrient uptake of
rainfed cowpea (Vigna unguiculata [L.j Walp). The different levels of phosphorus showed significant
difference in the yield and nutrient uptake of cowpea. Maximum grain yield and nutrient uptake was
obtained with application of 60 kg P3O5 ha'1. The net return was also highest with this level of
phosphorus nutrition. Application of sulphur did not show any remarkable influence on growth, yield
and nutrient uptake of cowpea.
