Deficit irrigation scheduling and levels of hydrogel (SAPs) influence on productivity and economics of Indian mustard (Brassica juncea) under semi-arid conditions - RATHORE, S S; SHEKHAWAT, KAPILA; RATHORE, BHAGWAT SINGH; SINGH, R K; PREMI, O P; KANDPAL, B K (The Indian Journal of Agricultural Sciences, 2018)