该文从纳米尺度分析土壤颗粒对作物残体有机质分解的影响将黑土B层提取出的纳米粒子溶液施入正在腐解的秸秆中,在不同的培养时期提取腐解产物,并用重铬酸钾一硫酸容量法测定有机质各分解组分含量和傅里叶红外光谱仪分析主要分解组分功能团含量分析结果表明:无机纳米粒子对水溶性有机化合物的生成在腐解前期和后期有显著抑制作用,腐解前期促进碱溶性有机化合物和碱溶性富里酸的生成,在后期没有显著影响,整个腐解过程均促进秸秆腐解生成小分子化合物,并降低水溶性胡敏酸含量红外光谱分析结果表明:无机纳米粒子在腐解前期和中期抑制碳水化合物生成,腐解中期促进碳酸盐物质生成,整个腐解周期均能显著提高脂肪链结构、甲基、亚甲基生成该研究证明土壤无机纳米微粒对有机质分解转化有显著影响 This paper analyzes the effect of soil particles on the decomposition of organic matter from crop residues at the nanoscale. The nanoparticle solution extracted from black soil layer B is applied to the decomposing straw. The decomposed products are extracted at different culture periods and treated with potassium dichromate The content of organic matter decomposition by single sulfate volumetric method and the analysis of functional group content of the main decomposition components by Fourier transform infrared spectroscopy showed that the inorganic nanoparticles had a significant inhibitory effect on the formation of water-soluble organic compounds in the early and late decomposition, At the early stage of decomposition, the formation of alkali-soluble organic compounds and alkali-soluble fulvic acid did not have significant effect. The whole decomposition process promoted the decomposition of straw to produce small molecule compounds and reduced the content of water-soluble humic acid. The results showed that: The inorganic nanoparticles can inhibit the carbohydrate formation in the early and middle stages of decomposing, and promote the formation of carbonate material in the middle stage of decomposing. The entire decomposing period can significantly increase the structure of the fatty chain, and the methyl and methylene groups are generated. This study proves that the inorganic nano-particles On the decomposition of organic matter has a significant impact