Probability studies of agricultural water management in Haryana State

Abstract

The probability of water surplus and deficiencies have been utilised in viewing the problems of agricultural water management. For maximization of the yield, the supply system must be based on the amount of water deficits and their durations. At Ambala, maximum water storage capacity is attained only once in 11 years for 150 days duration from July. The Kharif crop of 90 days duration can successfully be taken once in 2 years, the crops of 120 days duration can succeed in 2 out of 5 years, whereas the crops of still longer duration, i.e., 150 days can grow well only once in 3 years without moisture stress. An adequate amount of water is required even during the rainy season at Hissar. During the monsoon months, the drainage capacity of 7 mm day is desired once in 2 years. The climatic conditions are suitable during 12 July to 14 September and 15 December to 17 February at Ambala once in 2 years for storing the water in anticipation of the demand.