长期不同施肥制度对农田黑土有机质和氮素的影响  

Effect of Long-term Different Fertilizer Applications on Organic Matter and Nitrogen of Black Farmland

作　　者：隋跃宇[1] 张兴义[1] 焦晓光[2] 王其存[1] 赵军[1] 

机构地区：[1]中国科学院东北地理与农业生态研究所,黑龙江哈尔滨150040 [2]黑龙江大学农学院,黑龙江哈尔滨150080

出　　处：《水土保持学报》2005年第6期190-192,200,共4页Journal of Soil and Water Conservation

基　　金：黑龙江省科技攻关项目(GC03B301);黑龙江大学博士启动基金;中国科学院知识创新重大项目(KZCX1-SW-19-3-01)

摘　　要：以黑龙江省海伦黑土地区的农田长期(1985～2003年)定位试验土样为材料,对不同施肥处理土壤有机质含量、土壤全氮进行了系统研究.结果表明,长期无肥处理土壤有机质含量、全氮含量最低;长期施用氮肥、氮磷肥、有机肥处理土壤有机质含量、全氮含量居中;有机肥与化肥配合施用比无肥处理可显著提高有机质水平,增加土壤全氮含量.各处理C/N比值在9.91～13.10之间变动.The soil organic matter and total nitrogen contents were measured in a 19 years different fertilizer application long-term experiment in Hailun city, Heilongjiang province. The results showed： The soil organic matter and total nitrogen contents in no fertilizer application treatment was the lowest among all treatments; the soil organic matter and total nitrogen contents in chemical nitrogen fertilizer application, chemical nitrogen and phosphorus fertilizer application and manure application were midiam; manure and chemical NPK fertilizer application could much increase soil organic matter and total nitrogen content. The range of C and N ratio was among 9.91- 13.10.

关 键 词：农田黑土 不同施肥制度 有机质 全氮 

分 类 号：S158.3[农业科学—土壤学] S157.41[农业科学—农业基础科学]