Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Slyusarev Valeriy Nikiforovich

Scholastic degree


Academic rank

associated professor

Honorary rank

Organization, job position

Kuban State Agrarian University
   

Web site url

Email

slyusarev.v.n@mail.ru


Articles count: 5

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413 kb

DESCRIPTION OF CERTAIN ASPECTS OF FERTILITY OF BLACK LEACHED SOIL OF WESTERN CISCAUCASIA

abstract 0891305031 issue 89 pp. 448 – 464 29.05.2013 ru 1036
The article contains the results of the researches on the experimental field in the "Kuban" educational farm of Kuban State Agrarian University. In the black leached soil we defined particle size, the structure and the composition of water-physical properties of the soil, which are the most important conditions for high and stable crop productivity. We also gave morphological and genetic characteristics of the soil
195 kb

SOIL AND LEACHED BLACK SOIL ENVIRONMENTAL EVALUATION OF WEST CAUCASUS

abstract 0891305006 issue 89 pp. 60 – 72 29.05.2013 ru 1214
The analysis of foreign and domestic methods to evaluate soil productivity sowings has been presented. It has shown the need for soil environmental assessment in the West Central Caucasus. The soil-environmental index and index scores for an experimental field of individual crops rotation, which will promptly assess the fertility of the soil, give recommendations for rational allocation of fertilizer has been given
173 kb

THE BALANCE OF HUMUS WITH LONG-TERM USE OF BLACK LEACED SOIL IN THE PLAIN AGROLANDSCAPES DEPENDING ON AGROTECHNOLOGIES OF CULTIVATION OF FIELD CROPS

abstract 1371803018 issue 137 pp. 91 – 105 30.03.2018 ru 106
In the article, following the results of the first rotation of crop rotation, we consider results of researches on influence of technologies of cultivation of crops of various degree of intensification in a link of field crop rotation on change of the content in arable layer of the black leached soil of one of the main indicators of fertility of the soil – general humus. Determination of the total humus content in the soil layer 0-20 cm under winter wheat cultivated after sugar beet, corn for grain and sunflower ranged in terms of technology options from 3.02 to 3.72 %. Application of organic fertilizers for sugar beet on the variants of the studied technologies, in order to simulate soil fertility levels, from 200 to 600 t/ha and their intermediate application to this crop with a norm of 30 to 120 t/ha contributed, regardless of the method of basic tillage, to an increase in the humus content in the soil from 3.38 to 3.65 %. In the future, as crops rotate in the link of crop rotation, within five years there was a drop in the total humus content in the arable layer according to the variants of the experiment from 0.09 to 0.21 %. Intensification of technologies, increase of crop productivity in the link of crop rotation contributed to the annual loss of humus by 0.02-0.04%. When applying the same average and high standards of organic fertilizers, humus content in the arable layer did not fall below the initial levels of soil fertility and was 3.25 – 3.44 %. This contributed to the maintenance of the total humus content, and therefore, the preservation of soil fertility compared with options where organic fertilizers were not used. It is established that at cultivation of field crops on technologies with application of the non – oval system of processing of the soil, the content of the General humus in a layer of the soil of 0-20 sm averaged 3,39 %. Application in the technologies of soil plowing reduced humus content in the soil to 3.30%, which was inferior to options with non-oval tillage by 0.09%. With the alternation in the rotation surface of the main processing of the soil under cereals and moldboard tilled under (ie recommended system primary tillage) were lost to 0.012% of humus per year, while in the technologies with annual moldboard with side effects of deep loosening tillage, dehumification was of 0.027% per year. In the process of researches it is established that the cultivation of crops in crop rotation on environmentally acceptable technologies with application of the average rate of organic fertilizers on the background recommended for the Central zone of the Krasnodar region the main processing system contributes more to the preservation of humus in the soil compared to extensive technology (control) to 0.04 % and 0.06 – 0.07 percent when using this technology on the background of moldboard and subsurface tillage treatments of the soil
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INFLUENCE OF SOIL MELIORANT ON WATER - PHYSICAL PROPERTIES AND STRUCTURAL STATE OF SOILS OF THE KUBAN REGION

abstract 1401806030 issue 140 pp. 143 – 162 29.06.2018 ru 58
In the conditions of the Northern and Southern foothill zones of the Krasnodar Territory, the soil preparation Reasil® Soil conditioner was tested to study its effect on the water – physical properties and structural state of the chernozem of ordinary and alluvial meadow soils. Field and field experiments were conducted in the Northern Zone when maize was cultivated in irrigation. The preparation was applied before sowing by the spreader "Amazone" under pre-sowing cultivation (to a depth of 12 cm) at a dose of 400 kg / ha. In the South foothill zone, the experiment was conducted on a crop – a seedling tomato. The preparation was applied before planting seedlings in a dose of 200 kg / ha. It was established that the application of meliorant did not significantly change the density and total porosity in the arable and subsoil layers of alluvial meadow soil, which was 1,46–1,47 g / cm3 and 44,3–44,5 %, respectively, with practically no pores occupied air (porosity of aeration). However, the use of ameliorant on this soil contributed to an increase in the content of agronomically valuable aggregates in the arable and subsoil horizons, respectively, by 15,9 and 22 %, and the sum of waterproof aggregates by 8,4 and 1,5 %. In the northern zone, when maize was grown, it was established that the application of meliorant did not significantly change the soil density and total porosity in the arable and subsoil layers of the chernozem plain, where it amounted to 1,29–1,32 g/cm3 and 51,6–51,5 % at rather high aeration porosity. The meliorative method reduced the content of agronomically valuable aggregates in the arable layer of chernozem by 15,4 % and increased their quantity in the subsoil horizon (1,4 %). The number of waterproof aggregates increased on the variant with the use of ameliorant, respectively, by 19,9 and 2,8 %
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