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用埋袋法研究了潮棕壤中加入单一物料(玉米秸秆,稻草秸秆,苜蓿,鸡粪,猪粪)和混合物料(玉米秸秆-鸡粪-猪粪和苜蓿-鸡粪-猪粪)后土壤中轻组有机碳的一年内动态变化。结果表明:施不同有机物料后,土壤中轻组有机碳与对照相比都有较大幅度提高。随着培养时间的推移,不同处理的土壤中轻组有机碳碳含量都逐渐下降,且其下降趋势与添加物料的C/N比值呈显著的正相关。相关分析表明,施用混合物料处理中轻组有机碳的含量与单一物料处理都呈显著的正相关。
Buried bag method was used to study the effects of single material (corn straw, straw, alfalfa, chicken manure, pig manure) and mixed materials (corn stover - chicken manure - pig manure and alfalfa - chicken manure - pig manure) Dynamic changes of light organic carbon in soil within one year. The results showed that the light organic carbon in soil increased significantly compared with the control after application of different organic materials. With the increase of incubation time, the contents of light organic carbon in different treatments decreased gradually, and the declining tendency was positively correlated with the C / N ratio of the added materials. Correlation analysis showed that there was a significant positive correlation between light organic carbon content and single material treatment in the mixed materials.