论文部分内容阅读
本研究对不同施肥模式下的SOC含量、土壤酶活性(过氧化氢酶、转化酶、蛋白酶与脲酶)进行了研究,并分析了这些指标与作物产量的关系。结果表明,长期施肥(包括单施化肥)显著增加了冬小麦的产量与SOC的含量,增强了大多土壤酶的活性。SOC、土壤转化酶、蛋白酶及脲酶均与作物产量显著相关。化肥配施猪粪处理有利于提高产量,但保肥能力与单施化肥处理相比并无明显优势。化肥配施秸杆处理在维持作物产量的同时,对于SOC增加与土壤酶活性增强方面具有最大优势。
In this study, SOC content, soil enzyme activities (catalase, invertase, protease and urease) under different fertilization modes were studied, and the relationship between these indexes and crop yield was analyzed. The results showed that long-term fertilization (including single application of chemical fertilizers) significantly increased the yield and SOC content of winter wheat and enhanced the activity of most soil enzymes. SOC, soil invertase, protease and urease were significantly correlated with crop yield. Fertilizer application pig manure treatment is conducive to improving yield, but the ability to maintain fertilizer and application of chemical fertilizer treatment compared to no obvious advantage. Fertilizer application straw treatment has the biggest advantage in increasing SOC and enhancing soil enzyme activity while maintaining crop yield.