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Effect of two types of irrigation on growth, yield and water productivity of maize under different irrigation treatments in an arid environment
Author(s) -
Rasool Ghulam,
Guo Xiangping,
Wang Zhenchang,
Ullah Ikram,
Chen Sheng
Publication year - 2020
Publication title -
irrigation and drainage
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 38
eISSN - 1531-0361
pISSN - 1531-0353
DOI - 10.1002/ird.2480
Subject(s) - drip irrigation , irrigation , randomized block design , surface irrigation , yield (engineering) , mathematics , agronomy , evapotranspiration , arid , grain yield , deficit irrigation , environmental science , irrigation management , biology , physics , ecology , paleontology , thermodynamics
Abstract The experiments were carried out to study the behaviour of deficit drip irrigation based on the actual evapotranspiration (ET C ) at 100, 90, 75 and 60% of ET C respectively, and a separate furrow irrigation, on maize growth components, yield, water productivity and crop production function. The experiments were conducted under a randomized complete block design with three replications. The highest (407 and 275 mm) and lowest (244 and 165 mm) values of ET C were recorded under I 1.00 and I 0.60 for drip irrigation for two growing seasons. Compared with the furrow irrigation treatment, water savings of 33.3–60.0 and 33.4–60.0% were found under drip irrigation treatments. The highest grain yield was observed under I 1.00 : 10 100 and 9940 kg ha −1 for two growing seasons, respectively. All the drip irrigation treatments significantly increased the grain yield when compared to the furrow irrigation method. However, a better response factor was observed under I 75 for both years. It was also noted that all the growth and grain yield components were significantly affected by the different water deficits under drip irrigation. © 2020 John Wiley & Sons, Ltd.