草木栖、麦秸和泥炭在黑土中腐解特点及对土壤肥力的影响
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THE CHARACTERISTICS OF DECOMPOSITION OF SWEET CLOVER, WHEAT STRAW AND PEAT IN BLACK SOIL AND THEIR EFFECT ON SOIL FERTILITY
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    摘要:

    有机物料田间腐解试验表明,各地均以草木栖分解最快,麦秸次之,泥炭最慢;同一有机物料的分解速率,北部克山均比南部哈尔滨慢。腐殖化系数,各地均以泥炭最大,麦秸次之,草木栖最小;同一有机物料的腐殖化系数,北部克山均比南部哈尔滨大。三种有机物料处理黑土:1.提高了腐殖质的数量和品质,增加了养分贮量和保肥能力,泥炭处理优于其他处理。2.明显地提高了胶体复合有机炭和追加复合度,草木栖处理最好,麦秸次之,再次是泥炭。3.改善了胶体腐殖质结合形态,松结态显著增加,土壤腐殖质更加活化,复合胶体的特性也均得到了改善。

    Abstract:

    Results of field experiment applying sweet clovers, wheat straw anti heat in black soil showed that there were significant differences among the ratcs of decompositiun of the oganic materials. The decomposition rate of sweet clover was greater than these of the other two organic materials, and that of peat was the lowcet either in tlic black soil of Harbin or in that of Keshan. The humification coefficient of peat in the soil was the highest, that of wheat straw the second, and that of sweet clover the lowest. Experimental results also showed that application of the organic materials incremnd the contents of humus and nutrients, improved the retention oblity of the soil fo.r nutrient.s, and increased the total C and additional complexing degree of organo-complexes in soil. It was also found that the content of loosely cambineci humus was increased, that of closely-combined humus was decreased, and the humus was activated by application of onganic meterials, and the colloidal characteristics and the fertility art the black soil were improved.

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李庆民,肖仲纯.草木栖、麦秸和泥炭在黑土中腐解特点及对土壤肥力的影响[J].土壤学报,1986,23(2):124-131. Li Qingmin, Xiao Zhongchun. THE CHARACTERISTICS OF DECOMPOSITION OF SWEET CLOVER, WHEAT STRAW AND PEAT IN BLACK SOIL AND THEIR EFFECT ON SOIL FERTILITY[J]. Acta Pedologica Sinica,1986,23(2):124-131.

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  • 在线发布日期: 2013-02-25
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