Scientific Journal of KubSAU

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

Radionov Alexey Ivanovich

Scholastic degree


Academic rank

professor

Honorary rank

Organization, job position

Kuban State Agrarian University
   

Web site url

Email

rastenievod@kubsau.ru


Articles count: 2

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CROP PRODUCTIVITY IN IRRIGATED AGRICULTURAL LANDSCAPE DEPENDING ON THE SYSTEM OF PRIMARY TILLAGE AND FERTILIZERS

abstract 1411807019 issue 141 pp. 77 – 96 28.09.2018 ru 10
The article considers data obtained in long-term stationary experiment in Kuban state agrarian University, which was started in 1991 for old irrigated leached black soil of the central zone of the Krasnodar region. Studies were conducted in two rotations of seven-field grassy-grain-row crop rotation. The duration of irrigation - more than 30 years. It is established that long-term irrigation by sprinkling led to the soil over-compaction in both arable and subsurface layers. In the arable layer of 0-30 cm density of 0.14-0.17 g/cm3 exceeds the maximum allowable. We have noticed a sharp decrease in humus in the arable layer to 2.46-2.67 per cent. The weak acidification of the active root layer was noted, salt PH 5.0-5.3. In the soil-absorbing complex, the content of calcium decreases. It was found that the productivity of crops cultivated in the rotation of two rotations was greatly influenced by the system of basic soil treatment. In the first rotation, the decrease in productivity of cultivated crops against the background of the surface treatment system amounted to an average of 4.2% compared with deep: subsurface tillage and moldboard. In the second rotation after 14 years against the background of shallow surface treatment crop rotation productivity decreased by 11.2 %. The dependence of the fertilizer system and crop yield on the background of different main soil tillage is established. When using the mineral fertilizer system, the decrease in crop productivity, while minimizing the main tillage in the second rotation was 15.2%, and against the background of the organic fertilizer system by 12.7%. The deep sub-soil treatment provided an increase in the productivity of old irrigated leached black soil in the second rotation against organic fertilizers by 3.6%. Thus, the organic system of fertilizers on the background of deep main soil tillage allows to obtain crop yields in the framework of grassy-grain-row crop rotation on wetlands degraded old-irrigated lands is not lower than using high doses of mineral fertilizers
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RESOURCE - SAVING TECHNOLOGIES OF GROWING CORN IN THE CONDITIONS OF THE WESTERN CISCAUCASIA

abstract 1381804011 issue 138 pp. 37 – 59 30.04.2018 ru 138
In the article we consider various technologies of growing corn for grain with application of various backgrounds of soil fertility, fertilizer norms, system of plant protection from weeds, pests and diseases with the recommended soil cultivation
.