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采用傅里叶变换红外光谱（ＦＴＩＲ）对玉米秸秆腐解过程进行了研究。由光谱变化的分析可见，随着腐解的进行，羟基、酮羰基、甲基、亚甲基和次甲基的含量逐渐降低，腐解产物的脂族性降低，芳香性趋于升高和增强，有机成分中的无机元素特别是硅释放出来，并以ＳｉＯ２等氧化物的形式逐渐积累，一些阳离子则形成羧酸盐和碳酸盐。羧基在腐解过程中皆形成羧酸盐。就秸秆中叶片和茎秆腐解变化的差异来说，叶片腐解产物中甲氧基的含量增加，茎秆中的甲氧基含量无明显变化。在腐解１８０天后，叶片中的有机硅化合物及木质素的分解显著，但茎秆中二者的变化较小。未腐解的叶片中无羧酸盐存在，而未腐解的茎秆中则存在羧酸盐。Ｎ肥的加入促进了玉米秸秆残体的腐解。叶片和茎秆混合堆腐的腐殖化系数远高于二者单独堆腐。
The decomposition process of corn stalks was studied by Fourier transform infrared spectroscopy (FTIR). From the analysis of the spectral changes, the content of hydroxyl, methyl, methylene and methine decreased gradually with the decomposition of decomposing, the aliphaticity of the decomposed products decreased and the aromaticity tended to increase Enhanced, inorganic elements in organic components, especially silicon, are released and gradually accumulate as oxides such as SiO2. Some cations form carboxylates and carbonates. Carboxylates decompose both carboxylate salts. As for the difference of decomposition of leaf and stem in straw, the content of methoxy in leaf decomposed product increased, and the content of methoxy in stem did not change obviously. After 180 days of decomposition, the decomposition of organic silicon compounds and lignin in the leaves was significant, but the changes in both of the stems were small. There is no carboxylate present in the non-decomposed leaves, but carboxylate is present in the un-decomposed stem. N fertilizer to promote the decomposition of corn stover residues. The humification coefficient of mixed heap of leaves and stalks is much higher than that of the two alone.