Response of nitrogen, phosphorous and potassium on quality parameters and economics analysis of Indian mustard (Brassica juncea (L.) Czern and Coss.)

A field experiment on different fertilizer levels viz., 3 levels of nitrogen (80, 100 and 120 kg N/ha), 2 levels of phosphorous (40 and 50 kg P2O5/ha) and 3 levels of potassium (15, 30 and 45 kg K2O/ha) carried out during Rabi season 2019-20 at Agricultural Research Station Ummedganj, Kota, Rajasthan revealed that application of 120 kg N/ha was recorded significantly higher protein content, protein yield, oil content, oil yield, net return and B: C ratio over 80 kg N/ha however, it was remained at par with 100 kg N/ha. The non-significant differences was recorded between 40 and 50 kg P2O5/ha for all quality parameters except oil yield, significantly higher net return was obtained with 50 kg P2O5/ha. The application of 45 kg K2O was produced significantly higher oil content, protein content, net return and B:C ratio over 15 kg K2O/ha however, it was remained at par with 30 kg K2O/ha. Hence, application of 100 kg N/ha, 50 kg P2O5 and 30 kg K2O/ha was found most remunerative treatment combination for getting maximum net return.