期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：315
期号：4
页码：1-8
DOI：10.1088/1755-1315/315/4/042022
出版社：IOP Publishing
摘要：In the field experiment in the conditions of the Krasnoyarsk forest-steppe, the influence of resource-saving technologies on the physical state of agrochernozem and the carbon reserves of organic substance is studied. It is shown that the productive moisture reserves are satisfactory, in the subsoil layer there is a tendency to increase the moisture reserves by 2-5 mm on the minimum and zero background compared with plowing. Moldboard plowing and minimal tillage by fluffy consistency determined the greatest degree of differentiation of the humus horizon. Resource-saving technologies of main tillage contributed to an increase in bulk density by 0.05-0.08 g/cc while retaining the optimal parameters. The method of the main tillage determined the stocks of the above-ground mortmass. The stock of plant residues on the soil surface at the minimal background increased 1.4 times, at zero - 2.1 times compared with plowing. Stocks of phytomass, roots and underground mortmass were not identified by crop cultivation. The stock rations of carbon in mobile humus of agrochernozem increased 1.4-1.5 times against the background of resource-saving technologies due to newly formed humic acids and water-soluble organic matter.
