水土保持学报2017，Vol.31Issue(2)：262-266,300,6.DOI:10.13870/j.cnki.stbcxb.2017.02.043
东北高寒区沼渣连年施用对玉米产量、效益和土壤肥力的影响
Effects of Consecutive Biogas Residue Application on Maize Production, Benefit and Soil Fertility in the Cold High-latitude Area of Northeast China
摘要
Abstract
To clarify the effective mechanism of applying biogas residue on the yield,benefit and soil fertility of maize for two consecutive years,we conducted a field experiment in the Hailin farm,Hailin City,Heilongjiang Province.From May 2013 to October 2014,treatments of the single biogas residues,the mixtures of biogas residues and chemical fertilizers,full dose of chemical fertilizers were applied to the test field of maize.The results showed that both applications of the biogas residues and the mixtures of biogas residues and chemical fertilizers for two consecutive years could increase the yield of maize.More specifically,the application of biogas residues at 45 000 kilogram per hectare increased the yield of maize the most significantly.However,the full dose of chemical fertilizer application at 600 kilogram per hectare slightly decreased the yield of maize.The application of biogas residue at one ton could substitute 135.25 kilogram carbamide,180.18 kilogram diammonium phosphate,and 107.09 kilogram potassium sulfate.As a result,it generated a direct economic benefit of 956.72 yuan.Application of biogas residues achieved significantly more economic benefits compared with the control.Application of the mixtures of biogas residues at 7 500 kilogram per hectare and chemical fertilizers at 450 kilogram per hectare exhibited the highest economic benefits,and its average economic benefit was 18 066.2 yuan per hectare.The pH values could be increased by 0.02 to 0.28 units and the organic matter could be increased by 0.14 to 2.84 g/kg in the surface layer of soil after the single application of biogas residue,and the mixed application of biogas residues and chemical fertilizers.Nutrient contents of the surface layer of soil were also increased to some degree.Therefore,the reasonable application of biogas residues in the practical production may replace the application of chemical fertilizers to realize the efficient and economic utilization of the biogas residue in the cold high-latitude area of Northeast China.关键词
沼渣/玉米/土壤肥力/效益/产量Key words
biogas residue/maize/soil fertility/benefit/yield分类
农业科技引用本文复制引用
肖洋,李丽,田里,黄雅曦,路运才,徐利剑,孟凯,刘再奇,隽壮..东北高寒区沼渣连年施用对玉米产量、效益和土壤肥力的影响[J].水土保持学报,2017,31(2):262-266,300,6.基金项目
国家“十二五”科技支撑计划项目“三江平原规模化农业循环技术集成与示范”(2012BAD14B06) （2012BAD14B06）
