Comparison of irrigation schedules based on pan evaporation and growth stages in winter wheat

Prihar, S.S.; Khera, K.L.; Sandhu, K.S.; Sandhu, B.S.

Agronomy Journal 68(4): 650-653


ISSN/ISBN: 0002-1962
DOI: 10.2134/agronj1976.00021962006800040029x
Accession: 000321596

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In a 2-year field study on sandy loam soil, irrigation was scheduled at a given fraction of class A pan evaporation either applied at 5 growth stages or applied when 7 cm of water was required. Yields given by irrigation based on 0.75 X pan evaporation applied at crown rooting, tillering, jointing, booting and grain filling were the same as yields given by irrigation when 7 cm water was required. A water saving of 12% resulted from irrigation without attention to the growth stages of the crop.