Scientific Journal of KubSAU

The experiment considered the influence of different methods of agricultural technologies on the yield of winter barley in the dependence of the investigated factors. The studies were carried out at the experimental station of Kuban State Agrarian University in the conditions of multifactorial longterm soil monitoring. The experiment was carried out in a typical 11-field grain-grass-tillage crop rotation with the following alternation of crops: alfalfa, alfalfa, winter wheat, winter barley, sugar beet, winter wheat, corn for grain, winter wheat, sunflower, winter wheat, spring barley with sowing of alfalfa. Stationary experience is represented by the following factors: the level of fertility (factor A); fertilizer system (factor B); plant protection system (factor C) and methods of basic soil cultivation (factor D). The relationship between the influence of the soil fertility level, fertilizer norms, plant protection products, the soil cultivation system and yield, and the crop structure of the perspective winter barley variety ‘Gordey’ were determined. The soil is chernozem leached superheavy light-clay with an average thickness of the humus horizon - 150 cm. It is found that fertilizer, soil treatment, seeding method; protective means increase the yield of winter barley and positively influences the elements of the yield structure. The yield increase in comparison with the control changed from 10.4 to 26.8 c / ha. The statistical processing data show that the fertilizer system (35.8%) and soil cultivation (27%) had a certain influence on the number of productive stems; the fertilizer system (44.6%) influenced the spike size, the fertilizer system (28%) and the tillage (32.8%) had influence on the amount of grain in the spike and influenced the mass of grain from the spike

The influence of different agricultural technologies on the yield of winter barley variety ‘Gordei’ was studied. Economic evaluation was given to the researched factors. The studies were carried out at the experimental station of Kuban State Agrarian University in the conditions of polyfactorial long-term soil monitoring. The soil is represented by strongly leached, light-clay black humus with an average thickness of the humus horizon - 150 cm. It was found that with the change of technology (fertilizer, tillage, sowing method, means of protection) winter barley yields increases to 50% in comparison with the control. According to the analysis of bioenergetic and economic evaluation it makes sense to use the variants 022, 111 and 222 at plowing, where the maximum net efficiency ratio and net income are noticed

The article is devoted to the various elements of the cultivation technology of winter wheat called Antonina with the application of different soil fertility backgrounds, fertilizer norms, and plant protection systems against weeds, pests and diseases. Investigations are carried out in a multivariate stationary experiment: factor ‘A’- soil fertility; factor ‘B’ - fertilizer system; factor ‘C’ - the system of plants protection; factor ‘D’ - the main methods of soil tillage. Four models of soil fertility levels were studied in the experiment: А0 - initial (natural background); А1 - medium (200 kg / ha Р2О5 and 200 t / ha of solid manure); А2 - high (double dose); at А3 - high (tripled) on three backgrounds of basic soil tillage: nonmoldboard, recommended, moldboard with deep bursting and without the application of tillage (direct seeding and the natural rate of soil fertility). The soil is heavy leached black humus with humus content in the arable layer of 2.5% - 2.9%. Based on examined researches it was found that for the sustainable yield of winter wheat the dose of mineral fertilizers should be increased, by that, the high quality of the grain is provided

The influence of the crop rotation type, predecessor and different doses of mineral fertilizers on the yield of winter wheat varieties was investigated and bioenergetics estimation was given. Investigations were carried out in the North-Kuban Agricultural Experiment Station in two ten field crop rotation: grain tillage and grain - grass tillage rotation of prolonged stationary experience. The soil is the black soil, low in humus, powerful, with humus content (0-30sm), depending on the power of nutrition backgrounds in the arable soil layer. It was found that the selection of predecessors and the differentiated application of mineral fertilizers ensure stable high yields of grain and they exceed the varieties without fertilizers by 40-79%. Winter wheat yield depends on the crop rotation of 8-15%; from its predecessor - 15-18% and 27-31% of the fertilizer. A strong correlation between yield and agronomic methods was determined. The most effective predecessor for the wheat cultivation by the turnover of furrow slice is sainfoin, peas and wheat. More labor intensive and energy-consuming predecessors are grain maize and sugar beet