Effect of phosphorus, sulphur and zinc fertilization on quality of mustard (Brassica juncea L.) grown under semiarid conditions

A field experiment was conducted to study the effect of P, S and Zn on quality characteristics of mustard. It was observed that oil, glucosinolate and protein contents were higher at 60 kg each of phosphorus and sulphur and 30 kg ZnSO₄/ha during both the years. On contrary, oil constants i.e. refractive index, iodine value and acid value were reduced due to application of P, S and Zn during both the years.