Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Bardak Nikolay Ivanovich

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associated professor

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Kuban State Agrarian University
   

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Articles count: 4

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206 kb

INFLUENCE OF ENRICHMENT SEEDS WITH COPPER ON RICE YIELD

abstract 1321708023 issue 132 pp. 288 – 305 31.10.2017 ru 105
We have studied the effect of presowing enrichment with copper on the seed yield of rice. We have found optimum concentration of water solution of copper, which provides higher yields of seeds and evaluated the impact of the enrichment with copper on the growth processes in the plants of rice. The studies were conducted in elite seed-growing enterprise "Krasnoe" of All-Russian Research Institute of rice. It was found that for rice-growing farms of the Kuban region with the aim of increasing the quantity and quality of grain yield it is necessary to make sowing of rice seeds enriched with copper. This application should be carried out by wetting the rice seeds with 0,5 % water solution of the microelement with a semi-dry method, i.e. the rate of 10 liter working solution of copper in 1 ton of seed. The article proves the economic feasibility of enrichment of rice seeds with copper
147 kb

MINIMIZING TILLAGE AND ITS EFFECT ON AGRO-PHYSICAL INDEXES OF LEACHED CHERNOZEM AND PRODUCTIVITY OF FIELD CROPS

abstract 1401806026 issue 140 pp. 112 – 122 29.06.2018 ru 85
This article discusses the results of research on the effect of soil treatment on agro-physical performance and productivity of major field crops. The task of the research was to determine the impact of primary tillage (moldboard plowing), surface treatment (minimum) and zero (direct seeding) is factor A, fertilizers – B, and herbicides as factor C for agro-physical properties of soil. We have found that high density led to a significant increase in the proportion of the stone faction in the structural composition of the soil. Deterioration of the agro-physical properties while minimizing soil tillage has negatively affected water, air and food regimes under crops rotation. When all methods of soil tillage are applied, the moisture reserves in the 0-200 cm layer in early spring had the lowest values of moisture-holding capacity (230-272 mm) and were defined by the features of weather conditions and past cultures. At the time of sowing, their number decreased by 12% (203-241 mm). The most economical way of spending moisture was shown by plants on the moldboard tillage. In autumn, fewer weeds (7-11 PCs/m2) there were in the options for ploughing. When the surface and zero ways of soil treatments were applied, their number for 1 m2 was 1.2-1.9 times bigger. We effectively eliminated weeds only when applying herbicides. Different crop cultures reacted differently to minimizing the tillage. The greatest reduction in yield was observed when applied surface and zero tillage in cultivated crops. Thus, studies have shown that in order to obtain maximum yields of field crops of crop rotation, reducing production costs, there must be a rational combination of deep or conventional plough tillage for surface or zero tilled for grain crops
197 kb

THE DYNAMICS OF AGROPHYSICAL PROPERTIES OF BLACK SOIL DURING LONG-TERM AGRICULTURAL USE AND THE WAYS OF THEIR OPTIMIZATION IN THE CONDITIONS OF THE KRASNODAR REGION

abstract 1421808020 issue 142 pp. 41 – 56 31.10.2018 ru 44
The article describes experimental material obtained in two long-term experiments of Kubsau on the impact of certain agricultural practices on the basic agrophysical and water indicators of leached black humus, heavy duty. The study was conducted in two agricultural landscapes of lowland rainfed and irrigated lowland-basin. The state of the agrophysical properties of the arable land in two districts of the region was given by Institute "Kuban Niigiprozems". We have established that during prolonged agricultural use, the biggest change of the parameters of the agrophysical properties occurred in the arable layer 0-20 cm. Particularly noticeable compaction was observed on meadow-black soils of lowland-basin agricultural landscapes. The condition of soil structure and the density of the composition influence of level of soil fertility and the system of primary tillage. With the increase in the level of fertility, the coefficient of structure increases. The density of the composition of the studied cultures are much more dependent on tillage to the end of vegetation, especially high is 1,31-1,36 g/cm, it was given by direct sowing. The most destructive effect on soil structure was made by a surface treatment system. Organic fertilizers encourage soil compaction. Manure has a positive impact on the stock of productive moisture in two-meter layer on the background of deep processing
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