Effect of irrigation based on pan evaporation and nitrogen levels on the yield and water use in wheat

Majumdar, D.K.; Mandal, M.

Indian Journal of Agricultural Sciences 54(7): 613-614

1984


ISSN/ISBN: 0019-5022
Accession: 001345985

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Abstract
Wheat irrigated at IW (irrigation water):CPE (cumulative pan evaporation) ratios of 0.6, 0.8 and 1 (2,3 and 4 irrigations, resp.) gave grain yields of 2.99, 4.14 and 4.83 t/ha, consumed 230.8, 291 and 343.4 mm water and showed water use efficiencies (WUE) of 12.86, 14.24 and 14.04 kg grain/ha mm, resp. Yields and WUE were higher with 80 than with 60 kg N/ha; the difference in water consumption between the 2 N rates was small.