西北农业学报2025，Vol.34Issue(10)：1781-1790,10.DOI:10.7606/j.issn.1004-1389.2025.10.002
带型及覆盖方式对玉米‖豌豆产量及水分利用效率的影响
Effects of Intercropping Belt Type and Mulching Method on Yield and Water Use Efficiency in Maize-Pea Systems
摘要
Abstract
To explore the effects of intercropping belt types and mulching methods on crop water con-sumption characteristics,grain yield,and water use efficiency,a field experiment was conducted in the Hexi Oasis Irrigation District.A split-plot design was adopted,with the main plots being intercrop-ping belt types:maize intercropped with peas in a 3∶4 ratio(MP1:3 rows of maize and 4 rows of peas)and a 4∶4 ratio(MP2:4 rows of maize and 4 rows of peas),and the subplots being mulching methods:pea straw removal(SR),pea straw cutting and mulching(SMC),and pea straw crushing and mulching(SCC),resulting in six treatments.The results showed that after pea harvest,the inter-row evaporation in the pea belts of all treatments was on average 48.86％higher than that in the maize belts,indicating that the pea belts were the main source of inter-row evaporation in the maize-pea intercropping system.Straw crushing and mulching significantly reduced soil evaporation in both intercropping belt types.Compared with SMC and SR,SCC reduced inter-row evaporation in the pea belts by 2.20％—4.08％and 10.38％—12.37％,respectively,and reduced total inter-row evapo-ration in the intercropping system by 2.69％—4.13％and 11.88％—13.61％,respectively.The 4∶4 inter-cropping belt type significantly reduced water consumption during the crop growth period by 1.45％—2.83％compared with the 3∶4 type.Under the 4∶4 type,SCC significantly reduced water consump-tion by 1.26％and 4.00％compared with SMC and SR,respectively.Under the 4∶4 intercropping belt type,straw mulching could reduce E/ET,with SMC and SCC reducing it by 6.80％and 8.22％,respectively,compared with SR.The 4∶4 inter-cropping belt type increased the intercropping sys-tem yield by 3.53％—6.85％and water use efficiency by 5.78％—9.93％compared with the 3∶4 type.Under the 4∶4 type,SMC and SCC increased yield by 19.80％and 23.14％and water use effi-ciency by 23.25％and 28.33％,respectively,compared with SR.The 4∶4 intercrop-ping belt type(MP2)combined with pea straw crushing and mulching(SCC)reduced water dissipation and in-creased yield and water use efficiency.This combined system can serve as an intercropping planting model for improving resource-efficient utilization in arid oasis irrigation districts.关键词
玉米‖豌豆间作/带型配置/覆盖方式/棵间蒸发量/水分利用效率Key words
Maize-pea intercropping/Belt configuration/Mulching method/Soil evaporation/Water use efficiency引用本文复制引用
申龙强,胡发龙,拓明文,任强,马鹏,陈蕙,董志香,黄彩霞..带型及覆盖方式对玉米‖豌豆产量及水分利用效率的影响[J].西北农业学报,2025,34(10):1781-1790,10.基金项目
国家重点研发计划(2022YFD1900200) （2022YFD1900200）
甘肃省高校青年博士支持项目(2024QB-071). National Key Research and Development Programme(No.2022YFD1900200) （2024QB-071）
Gan-su Provincial Universities and Colleges Young Doctor Support Project(No.2024QB-071). （No.2024QB-071）
