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 I₇₅ 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.

中文翻译：

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干旱环境下两种灌溉方式对不同灌溉方式下玉米生长，产量和水分生产率的影响

该实验进行了研究赤字滴灌的基于实际蒸发量（ET行为_Ç）在100，90，75和ET的60％_Ç分别和单独沟灌，对玉米生长的部件，产量，水生产力和农作物生产功能。在具有三个重复的随机完全区组设计下进行实验。在两个生长季节，滴灌的ET _C最高值（407和275 mm）和最低值（244和165 mm）分别在I _1.00和I _0.60下记录。与沟灌相比，滴灌节水率分别为33.3–60.0和33.4–60.0％。在I下观察到最高的谷物产量_1.00：10 100和9940 kg ha ^-1，分别用于两个生长季节。与沟灌法相比，所有滴灌处理均显着提高了谷物产量。然而，在I _75下，两年都观察到了更好的响应因子。还应注意的是，滴灌条件下不同的水分亏缺严重影响了所有的生长和谷物产量成分。分级为4 +©2020 John Wiley＆Sons，Ltd.