黑龙江农业科学Issue(5)：78-82,5.DOI:10.11942/j.issn1002-2767.2025.05.0078
黑龙江地区麦后复种毛叶苕子的播种期、播量及氮肥替代效应
Sowing Period,Sowing Amount,and Nitrogen Fertilizer Substitution Effect of Multiple Cropping of Hairy Vetch After Wheat in Heilongjiang Region
摘要
Abstract
In order to promote the popularization and application of green manure crops in Heilongjiang Region,the experiment on sowing date and sowing quantity of hairy vetch was conducted from April to May in 2017.The results showed that the appropriate sowing quantity of hairy vetch seeds for production in Heilongjiang Region was 30 kg·ha-1,and the earlier the sowing date,the better.And in July 2017,a study was conducted on the growth and soil effects of hairy vetch under three sowing treatments:30 days before wheat harvest,15 days before harvest,and on the day of harvest.It was determined that mechanical sowing of hairy vetch on the day of wheat harvest was the optimal choice.From 2018 to 2019,further experiments were conducted on the nitrogen fertilizer substitution effect of wheat intercropping with hairy vetch.Eight fertilization treatments were designed:T1(no fertilization during tillage),T2(50％ fertilization during tillage),T3(75％ fertilization during tillage),T4(100％ fertilization during tillage),T5(no fertilization during intercropping with hairy vetch),T6(50％ fertilization during intercropping with hairy vetch),T7(75％ fertilization during intercropping with hairy vetch),and T8(100％ fertilization during intercropping with hairy vetch).This study systematically investigated the sowing period,sowing rate,and nitrogen fertilizer substitution effect of Multiple planting of hairy vetch after wheat,in the Heilongjiang Region.The results indicated that planting multiple varieties of hairy vetch after wheat can significantly increased the available nitrogen content in the soil,which had a positive effect on the yield of wheat the following year.Specifically,the treatment of multiple planting of hairy vetch(T5-T8)can reduced the nitrogen fertilizer application of the following wheat by about 25％,with an average reduction of 60 kg·ha-1,and there was no decrease in wheat yield.In addition,multiple planting of hairy vetch can significantly reduce weed density in wheat fields the following year and decrease herbicide usage.Compared with the clear tillage treatment(T1-T4),planting hairy vetch significantly improved the physical structure of cultivated land and enhanced soil fertility.In summary,replanting hairy leaved sweet potatoes after wheat not only optimizes soil nutrient status,but also effectively reduces agricultural production costs,with significant ecological and economic benefits.It is recommended to promote the mechanical sowing of hairy vetch on the day of wheat harvest in the Heilongjiang Region,combined with appropriate fertilization management,in order to achieve efficient utilization of green manure crops and sustainable agricultural development.关键词
麦后复种/毛叶苕子/氮肥替代效应/土壤肥力Key words
multiple cropping after wheat/hairy vetch(Vicia villosa Roth.)/nitrogen fertilizer substitution effect/soil fertility引用本文复制引用
杜若楠,张睿,金慧,潘多锋,赵海滨,杨学,张举梅,高嫱..黑龙江地区麦后复种毛叶苕子的播种期、播量及氮肥替代效应[J].黑龙江农业科学,2025,(5):78-82,5.基金项目
黑龙江省省属科研院所科研业务费项目(CZKYF2024-1-C015) （CZKYF2024-1-C015）
黑龙江省种业创新发展项目 （）
国家绿肥产业技术体系(CARS-22). （CARS-22）
