Impact of phosphorus and sulphur on nutrient content and uptake by clusterbean

Abstract

A field experiment was conducted at Agronomy farm, S.K.N. College of Agriculture, Jobner, Jaipur during kharif, 2017. The experiment consisted 16 treatment combinations comprising of four levels each of phosphorus (0, 20, 40 and 60kg P2O5 ha-1) and sulphur (0, 20, 40 and 60kg S ha-1) was laid out in randomized block design and replicated thrice. Clusterbean variety RGC-1038 was used as a test crop. The results indicated that the application of phosphorus @40kg ha-1 registered significantly maximum increase in content and uptake of nitrogen, phosphorus, potassium and sulphur in seed as well as in straw over control and P20. The treatment P40 and P60 were remained statistically at par. The increasing levels of sulphur upto 40kg ha-1 significantly increased the nitrogen, phosphorus, potassium and sulphur content and uptake by seed and straw of clusterbean as compared to control and S20.