中国乳业Issue(12)：10-15,6.DOI:10.12377/1671-4393.25.12.02
滨海盐碱地冬油菜-夏玉米复种模式的土壤改良与饲草增产协同效应研究
Synergistic Effects of the Winter Rapeseed-summer Maize Relay Cropping System on Soil Improvement and Forage Yield Increase in Coastal Saline-alkali Land
摘要
Abstract
[Objective]This study aimed to explore the synergistic potential of the winter rapeseed-summer maize relay cropping system in ameliorating saline-alkali soil and increasing forage yield,addressing the severe soil salinization,low productivity,and insufficient supply of high-quality forage for dairy farming in the coastal saline-alkali areas of Tianjin.The goal was to provide technical support for the integration of regional agriculture and animal husbandry and the efficient utilization of saline-alkali land resources.[Methods]A field experiment was conducted in mildly saline-alkali soil in the Binhai New Area of Tianjin.The winter rapeseed-summer maize relay cropping system(WR-MC)was compared with the monocropped maize system(MC)in terms of their effects on soil physicochemical properties,maize agronomic traits,and yield.Soil pH,total nitrogen,available phosphorus,available potassium,and other indicators were measured.Maize ear height,stem diameter,fresh weight,and other agronomic traits were analyzed.Spearman correlation analysis was used to explore the relationships between soil properties and maize traits.[Results]Compared with the MC system,the WR-MC system significantly reduced soil pH to 8.35 and significantly increased soil total nitrogen,available phosphorus,and available potassium contents by 0.02%,22.24%,and 17.62%,respectively.Maize ear height was significantly increased by 16.17%.Correlation analysis indicated that maize ear height and stem diameter were significantly negatively correlated with soil pH and positively correlated with soil nutrient indicators.[Conclusion]The winter rapeseed-summer maize relay cropping system effectively improved the physicochemical properties of coastal saline-alkali soil,promoted maize growth,and increased forage yield.It is a feasible synergistic technology for saline-alkali soil amelioration and forage yield enhancement,demonstrating value for broader application.关键词
冬油菜/夏玉米复种技术/盐碱地改良/饲草增产Key words
winter rapeseed/relay cropping technology of summer maize/saline-alkali soil amelioration/forage yield enhancement引用本文复制引用
张盛南,王璐瑶,郭爽,王煦,王永颖,李振国,王鸿英..滨海盐碱地冬油菜-夏玉米复种模式的土壤改良与饲草增产协同效应研究[J].中国乳业,2025,(12):10-15,6.基金项目
企业科技特派员项目(23YDTPJC00070) （23YDTPJC00070）
