摘要
以国家黑土肥力与肥料效益监测基地为平台,针对不同施肥措施,研究了土壤有机质及氮素含量的年际动态变化与平衡。试验结果表明,土壤有机质及氮素含量变化与施肥与否密切相关,且配合有机肥的施肥措施,有效增加了土壤碳、氮库容,丰富养分库的循环内容。
Based on the black earth, the change and balance of soil OM and Nitrogen in different treatments was presented in the paper. The results showed that the soil OM and Nitrogen content were extremely related with balanced fertilization. Furthermore, the OM+NPK treatment is effective in increasing the soil sink potential of C and N along with enriching cycle of nutrition sink.
出处
《吉林农业科学》
CSCD
2004年第5期29-33,共5页
Journal of Jilin Agricultural Sciences
关键词
黑土
土壤肥力
有机质
氮素
Black earth
Soil fertility
Organic matter
Nitrogen
