水土保持学报2013，Vol.27Issue(3)：44-48,54,6.
有机无机肥配施对旱地作物养分利用率及氮磷流失的影响
Effects of Combination of Organic and Inorganic Fertilizer on Crop Nutrient Utilization Rate, Nitrogen and Phosphorus Loss in Dry Land
摘要
Abstract
Field plot experiment for two years was conducted to study the effects of pig manure,pig manure composting or biogas manure combined chemical fertilizer on nitrogen(N),phosphorus(P) loss and nutrient utilization rate in spring maize-cabbage rotation field.Results showed that combination of organic and chemical fertilizer could decline N loss,and the loss proportion of NH4+-N and NO3--N accounted for 49.08％～52.02％ of the total N loss.N loss amount decreased with increasing application amount of pig manure composting.Compared to chemical fertilizer applications,the combinations of pig manure composting N by 20％ and chemical N by 80％ could decline N loss from field by 28.95％,the N utilization rate for two years improved by 8.13％.On the other hand,the combinations of pig manure composting or biogas manure and chemical fertilizer could obviously decline N loss from field and improve utilization rates of P and potassium.Compared to chemical fertilizer applications,the combinations of pig manure composting N or biogas manure N by 20％ and chemical N by 80％ could decline P loss by 4.74％ and 2.76％,the P utilization rate for two years improved by 1.06％ and 2.75％,the utilization rate of potassium for two year improved by 2.62％ and 11.48％,respectively.关键词
有机无机肥配施/猪粪堆肥/养分利用率/氮磷流失Key words
combination of organic and inorganic fertilizer/ pig manure composting/ nutrient utilization rate/nitrogen and phosphorus loss分类
农业科技引用本文复制引用
张玉平,荣湘民,刘强,谢桂先,黄涛,吴魏..有机无机肥配施对旱地作物养分利用率及氮磷流失的影响[J].水土保持学报,2013,27(3):44-48,54,6.基金项目
国家科技支撑计划项目(2012BAD15B04) （2012BAD15B04）
湖南省教育厅平台专项(12K065,11K034) （12K065,11K034）
