摘要
目的:以安徽省沿淮地区稻麦轮作农田为研究对象,实现养地增产的效果。方法:采取田间试验,设置不施肥(KB)、100%化肥(CF)、20%有机肥+80%化肥(CF20)、40%有机肥+60%化肥(CF40)和100%有机肥(OM100)5个处理,分析有机肥替代化肥对小麦产量和微生物特性的影响。结果:与单施化肥处理相比,适当的有机肥替代化肥可提高小麦产量,其中以CF20处理产量最高,达7850.85 kg/hm 2。与单施化肥处理组相比,有机肥替代化肥蔗糖酶活性增加5.57%~9.59%(P<0.05)。与单施化肥处理相比,有机肥替代化肥可显著提高土壤微生物量碳氮,其中以CF40处理土壤MBC和OM100处理土壤MBN含量最高。结论:有机肥替代20%化肥处理,增加小麦产量,优化产量构成因素,改变土壤酶活性,增加微生物量碳氮。
Objective:Taking rice wheat rotation farmland along Huaihe River in Anhui Province as the research object,the effect of raising land and increasing production was realized.Methods:Field experiments were carried out by 5 treatments:no fertilizer(KB),100%chemical fertilizer(CF),20%organic fertilizer+80%chemical fertilizer(CF20),40%organic fertilizer+60%chemical fertilizer(CF40)and 100%organic fertilizer(OM100)respestivly,to analyze the effect of organic fertilizer instead of chemical fertilizer on wheat yield and microbial characteristics.Results:Compared with the treatment of chemical fertilizer alone,the yield of wheat can be increased by replacing chemical fertilizer with proper organic fertilizer,among which the yield of CF20 treatment is the highest,reaching 7850.85 kg/hm 2.Compared with the control group,the invertase activity of organic fertilizer was increased by 5.57%-9.59%(P<0.05).Compared with the treatment of chemical fertilizer alone,organic fertilizer can significantly improve the soil microbial biomass carbon and nitrogen,and the highest content of MBN was in CF40 and OM100.Conclusion:Instead of 20%chemical fertilizer,organic fertilizer can increase wheat yield,optimize yield components,change soil enzyme activity,and increase microbial biomass carbon and nitrogen.
作者
许唐萍
沈冰涛
陈红
鲍文梅
汪媛
曹银
金海涛
汪建飞
吴安昌
肖新
XU TangPing;SHEN Bingtao;CHEN Hong;BAO Wenmei;WANG Yuan;CAO Yin;JIN Haitao;WANG Jianfei;WU Anchang;XIAO Xin(College of Resources and Environment,Anhui Science and Technology University,Fengyang 233100,China;Anhui Huilong Group Wuhe Ecological Fertilizer Co.Ltd.,Bengbu 233002,China)
出处
《安徽科技学院学报》
2020年第3期16-21,共6页
Journal of Anhui Science and Technology University
基金
国家重点研发计划项目(2017YFD0301302)
安徽科技学院大学生创新训练计划(2018S10879089,X20191087901)。
关键词
有机肥替代
土壤酶活性
土壤微生物量碳
土壤微生物量氮
Replacement of orgainic activcty fertilizer
Soil enzyme activities
Soil microbial biomass carbon
Soil microbial biomass nitrogen
