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首页> 外文期刊>Moscow University Soil Science Bulletin >Humic Substances in Agro-Stratozems of Leningrad Oblast
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Humic Substances in Agro-Stratozems of Leningrad Oblast

机译：列宁格勒州农业地层中的腐殖质

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摘要

Chemical properties and some parameters of the humus status of agro-stratozems developed in Leningrad oblast from different parent materials and with different histories of agricultural use were studied. The stability of the elemental composition of humus in the studied soils was found. The group and fractional composition of humus was more sensitive to agricultural impacts. In response to the application of manure, lime, and mineral fertilizers, humate-fulvate humus changed into fulvate-humate humusand the content of the agro-nomically most valuable HA-2 fraction increased, in some cases, to predominance. Exclusion from land use for 15 years decreased the humus content and changed its composition; it became more similar to that in zonal soddy-podzolic soils, which are the natural analogues of the agro-stratozems studied.
机译：研究了列宁格勒州不同母体来源和不同农业使用历史的农用叠层动物的腐殖质的化学性质和某些参数。发现腐殖质元素组成在研究土壤中的稳定性。腐殖质的种类和组成对农业影响更为敏感。响应于肥料，石灰和矿物肥料的施用，腐殖酸腐殖质腐殖质变为腐殖酸腐殖质，并且在某些情况下，农学上最有价值的HA-2组分的含量有所增加。禁止使用土地15年可减少腐殖质含量并改变其组成;它变得更类似于在带状土壤-坡地土壤中，这种土壤是所研究的农业-地层动物的天然类似物。

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