Influence of irrigation on water use in soybean (Glycine max L. Merrill)

Influence of irrigation on water use in soybean (Glycine max L. Merrill)

2003

E01203

Field experiments conducted during summer and kharif seasons of 1996and 1997 revealed that the seasonal water use, rate of water use and consumptiveuse (CU) were higher with soybean raised during summer rather than those in Kharifand also with water use factor 0.90 IW/CPE ratio plus composted coirpith (CCP) application @ 12.5 t.ha-1. The soil moisture content and extraction were higher in 0.90 IW/CPE ratio with the application of CCP under short term moisture condition (0.50 IW/CPE ratio). The soil moisture extraction (SME) pattern was almost uniform throughout the soil profile. But in adequate moisture supply (0.90 IW/CPE ratio) the SME was more from top 0-15 cm layer. Higher irrigation regime (0.90 IW/CPE ratio) with the application of CCP enhanced the grain yield. Under short-term moisture stress condition, the yield could be sustained with the application of CCP.

v.90(1/3):60-65, MADRAS AGRICULTURAL JOURNAL

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