Response of wheat to irrigation scheduling based on cumulative pan evaporation

Sharma, K.C.; Misra, R.D.; Pandey, D.S.; Bana, O.P.S.

Indian Journal of Agronomy 32(2): 121-123

1987


ISSN/ISBN: 0537-197X
Accession: 001934644

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Abstract
Irrigation trial on wheat was conducted in rabi season from 1978-1979 to 1983-84 at the GB Pant University of Agriculture and Technology, Pantnagar [India]. The results indicated that irrigating the wheat crop at 5.0 cm CPE proved better than 7.5, 10.0, 12.5 and 15.0 cm CPE and was equally effective as irrigation given at all physiological stages in the years where irrigation significantly influenced the grain yield. However, grain yield obtained with 7.5 cm CPE was always on par with 5.0 cm CPE while 10 cm CPE was also on par with it except in 1980-81. In the years where irrigation failed to affect the grain yield due to well distributed rainfall, the slightly more water expense efficiency (kg grain/ha cm field water supply) was found under 5.0 cm CPE over irrigation at all physiological stages.