BACKGROUND In recent years, shallow-buried drip irrigation in spring maize production has gradually replaced drip irrigation under plastic films and has become a common irrigation method in semiarid areas of northern China. RESULT Two years of field experiments were carried out in the semiarid area of western Jilin Province to compare the two drip irrigation methods in the spring maize production system. The treatments included MW1 (drip irrigation under mulch + moderate irrigation amount), MW2 (drip irrigation under mulch + high irrigation amount), SM1 (shallow-buried drip irrigation + moderate irrigation amount), and SM2 (shallow-buried drip irrigation + high irrigation amount). The maize yields were significantly higher under mulch than under shallow-buried drip irrigation, but there was no interaction between mulch and the irrigation amount. Drip irrigation under mulch greatly improved spring maize N, P and K uptake compared with that under shallow-buried drip irrigation. The agronomic use efficiency, recovery use efficiency, and partial factor productivity were ranked in the order of MW2>MW1>SW2>SW1. The water use efficiency of drip irrigation under mulch was 7.44% and 6.82% higher than that of shallow-buried drip irrigation under the moderate and high irrigation levels, respectively. However, considering the costs of the plastic mulch, there was no significant (P<0.05) difference in economic benefits between the SW and MW treatments. CONCLUSION Drip irrigation under plastic film provides greater advantages for production, but shallow-buried drip irrigation may be a suitable method for farmers until fertigation technology is further optimized and the problem of plastic film pollution is solved. This article is protected by copyright. All rights reserved.

中文翻译：

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北方半干旱地区春玉米生产体系中地膜滴灌能否改用浅埋滴灌？

背景技术近年来，春玉米生产中浅埋滴灌逐渐取代地膜下滴灌，成为我国北方半干旱地区常用的灌溉方式。结果在吉林省西部半干旱地区进行了为期两年的田间试验，比较了两种滴灌方式在春玉米生产系统中的应用。处理包括MW1（地膜下滴灌+中灌量）、MW2（地膜下滴灌+高灌量）、SM1（浅埋滴灌+中灌量）和SM2（浅埋滴灌+高灌量）灌溉量）。地膜下玉米产量显着高于浅埋滴灌，但地膜与灌水量无交互作用。与浅埋滴灌相比，地膜下滴灌大大提高了春玉米对氮、磷、钾的吸收。农艺利用效率、恢复利用效率和部分要素生产率按MW2>MW1>SW2>SW1的顺序排列。中、高灌水平下，地膜下滴灌的水分利用效率分别比浅埋滴灌高7.44%和6.82%。然而，考虑到地膜成本，SW 和 MW 处理之间的经济效益没有显着差异（P<0.05）。结论 膜下滴灌为生产提供了更大的优势，但在灌溉施肥技术进一步优化、地膜污染问题得到解决之前，浅埋滴灌可能是一种适合农民的方法。本文受版权保护。版权所有。