摘要
为了探讨水稻土施用养殖废弃物有机肥的适宜替代比例,采用盆栽试验,研究了等养分条件下化肥配合施用30%、50%、60%、75%、100%的牛粪有机肥和猪粪有机肥对于水稻产量及氮素吸收利用的影响。结果表明:水稻土施用60%牛粪有机肥+化肥处理的稻谷产量显著高于其他处理,施用50%~100%的猪粪有机肥+化肥处理的稻谷产量显著高于30%猪粪有机肥+化肥处理;30%牛粪有机肥+化肥、30%猪粪有机肥+化肥处理的稻谷全氮含量显著高于其他处理;在等氮量条件下,60%~100%的牛粪有机肥替代化肥、50%~100%的猪粪有机肥替代化肥均有助于水稻对氮素的吸收利用,氮素收获指数和氮素利用效率均有所提高。总体上,土壤有机质与全氮含量丰富的水稻土施用60%的牛粪有机肥或猪粪有机肥替代化肥,有利于提高稻谷产量与氮肥利用率。
In order to explore the suitable application ratio of breeding waste as organic fertilizer in paddy soil,a pot experiment was conducted to study the effects of 30%,50%,60%,75% and 100% cow manure or pig manure combined with chemical fertilizer on rice yield and nitrogen absorption and utilization under equal nutrient conditions.The results showed that the rice yield of 60% cow manure+chemical fertilizer treatment was significantly higher than that of the other treatments,and the rice yield of 50%-100% pig manure+chemical fertilizer treatment was significantly higher than that of 30% pig manure+chemical fertilizer treatment.The total nitrogen content of rice grain in 30% cow manure+chemical fertilizer treatment or in 30% pig manure+chemical fertilizer treatment was significantly higher than that in the other treatments.Under the condition of equal nitrogen amount,60%-100% cow manure instead of chemical fertilizer and 50%-100% pig manure instead of chemical fertilizer both facilitated the absorption and utilization of nitrogen by rice,and the nitrogen harvest index and nitrogen use efficiency were improved.In general,the application of 60% cow manure or pig manure instead of partial chemical fertilizer to paddy soil with rich organic matter and total nitrogen is beneficial to improving rice yield and nitrogen use efficiency.
作者
尹阳明
刘琼峰
罗小军
王益凤
申艳群
周峻宇
吴海勇
谷雨
YIN Yang-ming;LIU Qiong-feng;LUO Xiao-jun;WANG Yi-feng;SHEN Yan-qun;ZHOU Jun-yu;WU Hai-yong;GU Yu(Shaodong Soil and Fertilizer Station,Shaodong 422800,PRC;Hunan Soil and Fertilizer Institute,Changsha 410125,PRC;Shaodong Jianjialong Town Agricultural Comprehensive Service Center,Shaodong 422821,PRC;Shaodong Yangqiao Town Agricultural Comprehensive Service Center,Shaodong 422827,PRC)
出处
《湖南农业科学》
2023年第7期50-53,共4页
Hunan Agricultural Sciences
基金
湖南省自然科学基金项目(2020JJ4411)
湖南省土壤肥料研究所所长基金项目(2020tfs102)
湖南省农业科技创新资金项目(2018QN25)
邵东市绿色种养循环农业试点项目(2021)。
关键词
水稻土
替代化肥比例
氮素吸收利用
水稻产量
paddy soil
organic-inorganic fertilizer combination ratio
nitrogen uptake and utilization
rice yields
作者简介
尹阳明(1967-),男,湖南邵东市人,农艺师,主要从事土壤肥料技术及应用研究;通信作者:刘琼峰。
