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1 Pal, R.; Kapoor, A. K.; Poonia, S. R.; Raj, M. 1990. Simple water-balance models for simulating moisture, salinity and sodicity profiles in soils under wheat. Journal of Agricultural Science, 115:163-172.
Water balance ; Simulation models ; Salinity ; Sodic soils ; Wheat ; Soil moisture / India / Haryana
(Location: IWMI-HQ Call no: P 2904 Record No: H013329)
Experiments were conducted in wheat planted in microplots at Hisar and Sirsa in Haryana State, India, to observe and simulate the depth distribution of moisture content, electrical conductivity in 1:2 soil-water extract (EC 1:2), and exchangeable sodium percentage (ESP) of soils after irrigation with water of high electrical conductivity (12-19 dS/m) and sodium absorption ratio (20-80 (mmol/1)). The three simulation models used differed in the procedure of estimation of evapotranspiration (models I and II, Reddy 1983; model III Arora et al. 1987). In general, the means of the experimental moisture content profiles decreased and those of EC 1:2 and ESP increased with irrigation at both locations. Statistical analysis showed an overall good agreement between the experimental and simulated values of moisture content, EC 1:2 and ESP; the accuracy of simulation of the models followed the order model II=model III> model I, for moisture content and EC 1:2, but was identical for ESP.
2 Sharma, M. K.; Poonia, S. R.; Gupta, R. K.; Siyag, R. S. 1994. Prediction of moisture, salinity and sodicity profiles in soil under wheat irrigated with poor quality waters. Paper presented at the 15th World Congress of Soil Science, Acapulco, Mexico, 10-16 July 1994. Transactions, Vol.2a: Commission I symposia. pp.51-52.
(Location: IWMI-HQ Call no: P 4502 Record No: H020518)
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