摘要
采用3年的小区定位试验,研究了7种不同施肥处理对青海蚕豆产量及土壤养分的影响。结果表明,除单施有机肥处理外,各施肥处理与对照间蚕豆产量和秸秆产量差异显著(P<0.05),其中有机肥和无机肥配施处理经济产量和秸秆产量最高。有机肥和无机肥配施(NPKM)单株产量、单株有效粒数、单株荚数和主茎分枝数等指标较其他施肥处理具有更为明显的综合优势,且以上指标与蚕豆产量间呈显著正相关关系(P<0.05),相关系数分别为0.793 9、0.818 1、0.806 7、0.795 4。施肥对土壤养分状况有不同程度的影响,有机肥和无机肥配施处理(NPKM)相对于其他施肥处理,各养分指标均有明显提升,更有利于土壤肥力的增加和恢复。
The effects of 7 different fertilizer treatments on the yield of broad bean and the content of soil nutrients were studied.The results of field plot location experiment for 3 years indicated that,except in the applying manure solely treatment,the yield in application fertilizers treatments was higher than that in check treatment（P〈0.05）,especially in the combined treatment of organic manure and chemical fertilizers（NPKM）.There was positive correlation between yield indexes（yield per plant,effective bean number per plant,bean pod per plant and branch number of caulis） and the bean yield（P〈0.05）,the correlation coefficients were 0.793 9,0.818 1,0.806 7,0.795 4 respectively.The NPKM treatment had advantage over other treatments on yield indexed mentioned above.The content of soil nutrients increased especially in NPKM treatment,which indicated that combined applying of organic and chemical fertilizers was more helpful to the increasing and renewing of soil fertility than other fertilizering patterns.
出处
《湖北农业科学》
北大核心
2011年第4期684-687,共4页
Hubei Agricultural Sciences
基金
国家"十一五"科技支撑计划项目(2006BAD05B07)
中国-加拿大政府间合作项目(IPNI)
关键词
有机肥
蚕豆
产量
土壤养分
organic fertilizer
broad bean
yield
soil nutrients
