有机物料对土壤有机碳含量的影响

摘要

[目的]为了探讨在实际的生产中,有机物料归还量、归还时间对土壤有机碳含量的影响.[方法]采用盆栽试验,研究有机物料施用量对低、中、高有机碳含量土壤的影响.[结果]有机碳含量随着有机物料施用量和培养年限的增加而增加,有机物料转化率随着培育年限的增加而增加,并且低、中有机碳含量土壤的有机物料转化率高于高有机碳含量土壤.[结论]该研究可以为秸秆等有机物料施入土壤培肥提供依据.%[Objective] The research aimed to study the effects of the amount of organic materials and return time on the content of the soil organic carbon. [ Method ] Potted plants experiments were adopted to study the influences of the amount of organic materials on soil organic carbon. [ Result]The content of organic carbon increased with the increase of the amonuat of organic materials and cultivation time. The conversion efficiency of the organic material went up with the increase of cultivation time. Moreover,the conversion efficiency of the organic material with low and middle organic carbon content was higher than that with the heavy organic carbon content. [Conclusion]The research could provide the basis for the improvement of the soil fertility by the application of organic materials such as straw.