天津农业科学2023，Vol.29Issue(12)：50-56,7.DOI:10.3969/j.issn.1006-6500.2023.12.009
紫云英不同翻压量对豫南地区水稻养分吸收及土壤肥力的影响
Effects of Different Incorporation Amounts of Chinese Milk Vetch on Rice Nutrient Uptake and Soil Fertility in Southern Henan Province
摘要
Abstract
Incorporation of Chinese Milk Vetch was an important management practice in rice-planting regions.A field experiment was conducted in southern Henan rice-growing area,to explore the effect of different incorporation amounts of Chinese milk vetch on nutrient uptakes,yields and soil fertility rice and to determine the optimal application rate of fresh Chinese milk vetch,to provide a theoretical reference for the possibility of using Chinese milk vetch as the sole fertilizer source instead of chemical fertilizer in south-ern Henan rice area in the Chinese Milk Vetch-rice rotation.The long-term field experiment was established in Xinyang,Henan Province in 2014.There were five treatments,CK(no fertilizers and no Chinese milk vetch)and 4 levels(22.5,30,45,60 t·hm-2)of Chinese milk vetch.The rice yield,nitrogen(N),phosphorus(P),and potassium(K)nutrient content and basic soil nutrients were mea-sured.The effects of different incorporation amounts of Chinese Milk Vetch on rice yield,nutrient accumulation and basic soil nutri-ents at maturity stage were preliminarily studied.Experimental results showed that compared with CK,the application of Chinese milk vetch significantly increased rice grain and straw yields by 22.68%-29.44%and 31.72%-41.56%,respectively.Incorporation of Chi-nese milk vetch could effectively improve soil fertility,and the contents of soil organic matter and available nitrogen were increased by 13.08%-23.46%and 36.03%-93.06%,respectively.Compared with CK,GM45 and GM60 had the the highest accumulation of N,P and K in rice and straw.Under the Chinese Milk Vetch-rice rotation system in southern Henan Province,the 45 t·hm-1 application of Chinese milk vetch could ensure rice growth,promote the absorption of N,P and K in rice,and keep rice yield stable.关键词
紫云英/单季稻/养分利用效率/养分吸收/产量/土壤肥力Key words
Chinese milk vetch/single cropping rice/nutrient use efficiency/nutrient uptake/yield/soil fertility分类
农业科技引用本文复制引用
张琳,张丽霞,史鹏飞,丁丽,杜光辉,吕玉虎..紫云英不同翻压量对豫南地区水稻养分吸收及土壤肥力的影响[J].天津农业科学,2023,29(12):50-56,7.基金项目
国家重点研发计划项目(2021YFD01700203) （2021YFD01700203）
国家绿肥产业技术体系项目(CARS-22-Z-08) （CARS-22-Z-08）
