山东农业大学学报（自然科学版）2025，Vol.56Issue(3)：477-485,9.DOI:10.3969/j.issn.1000-2324.2025.03.012
覆盖模式对黄土旱塬区春玉米生长及水分利用的影响
Mulching Patterns on Growth and Water Use of Spring Maize in Loess Plateau Dryland Area
摘要
Abstract
To study the effects of different mulching patterns on the growth and water use of spring maize in the rain-fed dryland of the Loess Plateau,research was conducted to seek an optimized mulching pattern for water harvesting and moisture conservation using reduced plastic film mulching in rainfed areas.Starting in 2021,a fixed-location experiment was set up with three mulching patterns:wide polyethylene film mulching(PM),wide biodegradable film mulching(BM),and reduced-width strip mulching using both polyethylene and biodegradable films(FH).The study examined the impact of these different mulching patterns on soil moisture,green leaf area index,yield and water use in spring maize.The results indicated that the FH treatment had a superior effect on soil moisture restoration compared to PM and BM treatments.By the end of the second planting season,the FH treatment significantly increased the moisture content in deep soil layers,showing a 7-percentage-point increase over the PM treatment and a 2.5-percentage-point increase over the BM treatment.FH treatment significantly delayed the adverse effects of drought stress on the green leaf area with the leaf area index during the flowering stage under drought conditions increasing by 11.9%to 15.7%compared to PM and BM,and by the harvest stage,the leaf area index of spring maize increased by 4.3%to 113.8%compared to PM and BM treatments.FH treatment increased 100-seed weight by 3.9%～11.3%compared with PM and BM treatment.The 2-year average yield FH treatment increased by 4.7%compared with PM and 7.6%compared with BM,the average water consumption decreased by 9.2%～11.5%,the precipitation efficiency and average water efficiency increased by 5.5%and 22.2%,7.7%and 19.2%compared with M and BM treatment,respectively.In summary,FH mulching reduced the input of biodegradable film while maintaining similar moisture conservation capabilities as PM.Under conditions of higher precipitation,the water harvesting and moisture conservation performance of FH was superior to both PM and BM,making it a viable optimized mulching pattern for reduced plastic film use in rainfed dryland areas.关键词
黄土旱塬区/春玉米/水分利用效率/生物降解地膜/地膜覆盖Key words
Loess plateau/spring maize/water use efficiency/biodegradable mulch/mulch film分类
农业科技引用本文复制引用
王磊,樊廷录,赵刚,党翼,李尚中,张建军,周刚,徐静..覆盖模式对黄土旱塬区春玉米生长及水分利用的影响[J].山东农业大学学报（自然科学版）,2025,56(3):477-485,9.基金项目
甘肃省农业科学院院列重点研发计划(2022GAAS38) （2022GAAS38）
国家重点研发计划(2021YFD1900700,2016YFB0302402,2021YFD1100500) （2021YFD1900700,2016YFB0302402,2021YFD1100500）
甘肃省重大专项(21ZD4NA022) （21ZD4NA022）
国家现代农业产业技术体系(CARS-02-55) （CARS-02-55）
