饲料研究2024，Vol.47Issue(20)：129-134,6.DOI:10.13557/j.cnki.issn1002-2813.2024.20.024
陕北旱区不同种植模式对青贮玉米产量及水分利用效率的影响
Effects of different planting patterns on maize silage yield and water use efficiency in arid regions of Northern Shaanxi Province
摘要
Abstract
The experiment aimed to explore the optimal planting patterns for maize silage in the arid regions of Northern Shaanxi Province.Three different mulching cultivation patterns were set up:Inter-ridge mulching(MJ),double furrow mulching(SG),and full-film double ridge and furrow sowing(QM),with non-mulched flat cultivation(CK)as the control.The soil water and thermal conditions,as well as the yield and water use efficiency of silage maize under different planting patterns were measured.The results showed that compared to CK,all mulching planting patterns were able to increase the average soil water content in the 0～60 cm soil layer and increase the average soil temperature in the 0～20 cm soil layer.They also increased the plant height,stem thickness,and dry matter accumulation of silage maize at harvest,with fresh and dry forage yields increasing by 13.35％～41.22％and 30.17％～50.80％,respectively.The water use efficiency for biological fresh weight and biological yield water use efficiency were improved by 12.10％～40.31％and 28.75％～50.24％,respectively.The forage grading index of SG and MJ was significantly higher than that of CK(P＜0.05).The study indicates that the MJ planting pattern,while ensuring yield and quality,reduces the use of mulch film and increases the recovery rate of residual film,which is conducive to promoting the green and sustainable development of agriculture and is suitable for the cultivation of silage corn in this region.关键词
青贮玉米/种植模式/干物质积累量/水分利用效率/营养品质Key words
silage maize/planting pattern/dry matter accumulation/water use efficiency/nutritional quality分类
农业科技引用本文复制引用
刘娇娇,张培培,纪晓玲,王江涛,张雄..陕北旱区不同种植模式对青贮玉米产量及水分利用效率的影响[J].饲料研究,2024,47(20):129-134,6.基金项目
国家自然科学基金项目(项目编号:41967013、31751001) （项目编号:41967013、31751001）
中央引导地方科技发展资金陕西省工程技术研究中心项目(项目编号:2022ZY2-GCZX-05) （项目编号:2022ZY2-GCZX-05）
陕西省农业农村厅农业科技创新驱动项目(项目编号:2022NYT01) （项目编号:2022NYT01）
榆林市科技计划产学研合作项目(项目编号:CXY-2022-70) （项目编号:CXY-2022-70）
