Vol. 8 No. 2
Productivity, quality and water expense efficiency of late kharif sown hybrid maize (Zea mays L.) under different irrigation regimes and nitrogen levels
Author(s): G. S. AULAKH, K. K.VASHIST, S. SHARMA AND S. S. MAHAL
Abstract: Results are presented of a field experiment conducted wih maize on a loamy sand soil in Ludhiana, Punjab, India, during late kharif 2009-10, involving 4 irigation regimes: IW/CPE ratio 0.50 (I1), 0.75 (I2), 1.00 (I3) and 1.25 (I4), and 4 N levels (100, 125, 150 and 175 kg/ha). The irrigation was scheduled when the cumulative pan evaporation reached the level of 60, 75, 100 and 150 mm in the case of I1, I2, I3 and I4, respectively. The number of irrigations required during the crop growing period was 3, 3, 2 and 1, respectively. Data were recorded on number of grains per cob, test weight, cob length and girth, barrenness, shelling percentage, grain and straw yields, and harvest index. The nitrogen, protein, starch, total sugars and oil contents, as well as total water expense and water expense efficiency, were also determined
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