摘要
以东北黑土区所处的特殊自然条件为背景,以黑土为研究对象,研究了长期不同施肥处理对黑土碳素及活性有机质的影响,旨在寻找针对东北黑土区的理想的有机无机施肥配比方案,为东北黑土区土壤培肥提供理论依据和参考。研究结果表明:各施肥处理对黑土总碳、黑土有机碳和黑土活性有机质的积累均起到积极作用;有机肥与化肥配施处理较NPK处理培肥效果更佳;有机肥与化肥配施处理中,有机肥施用量对黑土总碳、黑土有机碳和黑土活性有机质的影响不明显。
In this study,the effects of long-term different fertilizations on black soil carbon and labile organicmatter were studied in a background of special natural conditions of the northeast black soil region,in order tofind out the ideal proportions between organic manure and chemical fertilizer and provide reference for soilimprovement in the black soil region.The results showed that each fertilizer treatment played positive role inthe accumulation of total carbon,organic carbon and labile organic matter（LOM） in black soil.Compared withchemical fertilizer treatment（NPK）,the treatment of combined application of organic manure and chemicalfertilizer obtained the best result.In the combined application treatment,there was no obvious relationshipbetween organic manure application amount and the contents of total carbon,organic carbon and LOM.
出处
《中国农学通报》
2016年第15期130-133,共4页
Chinese Agricultural Science Bulletin
关键词
黑土
有机碳
活性有机质
black soil
organic carbon
labile organic matter
