The actual and priority issue is the selection of varieties for the grain quality to use them as initial material for the further improvement of local agroecotypes of soft spring wheat through the creation of new varieties. 20 varieties of soft spring wheat of various ecological origins were studied in the trial field of Kashkadarya Branch of Scientific-Research Institute of Grain And Legumes in 2014-2015. The State Variety Test Commission adopted Hazrati Beshir cultivar in the southern region of Uzbekistan as a standard variety of soft spring wheat. The main indicators describing baking values of wheat are quality and quantity of gluten in grains. As a result of the studies, such varieties as Kr-SpR2014-14, Kr-SpR2014-22, Kr-SpR2014-4, Kr-SpR2014-6, Kr-SpR2014-19, Kr-SpR2014-10, Kr-SpR2014-15 were found to be promising varieties combining adaptability with a set of grain quality indicators.

Grain moisture affects this property as elasticity. This indicator of the quality of the processed material allows to regulate the process of separation of grain mixture, influencing the efficiency of use of energy resources, which are used for drying grain. In the process of separation of grain mixture on moisture content (firmness) is used the effect of coefficient of restitution on the angle and speed of the rebound of the grains after hitting the reflective surface, inclined at an angle to the horizon. The best result in the separation of grain mixtures is observed when the angle of rebound of the grains from the reflective surface to the horizon 45°. In order to achieve this effect, it is necessary to determine the optimum tilt angle of the reflective surface to the horizon depending on the moisture of corn in the grain mixture. For elastic solids, the coefficient of restitution is equal to one. Theoretical researches, analysis of experimental data allowed to establish that the angle of inclination of the reflecting surface to the horizon from the wet grains equal 22°30', which corresponds to the case of perfectly elastic collision, when the angle of incidence equals the angle of reflection.

One of the biologically determined characteristics of Diospyros kaki is yield. It is influenced by the complex interaction of many factors and directly depends on soil and climatic conditions and technological care of plants, one of which is mineral nutrition. Diospyros kaki positively responds to nitrogen fertilizers. The article gives the results of the study showing the impact of doses of nitrogen nutrition on such indicators as productivity and economic efficiency of Diospyros kaki under conditions of Kubinsky district of the Republic of Azerbaijan. There was established that application of 90 kg and 120 kg/ha of nitrogen fertilizers increased productivity of the persimmon trees, thereby their economic efficiency. At the same time, the application of 120 kg of nitrogen per hectare was the most effective. However, due to the nitrogen accumulation in fruit, the application of 90 kg per hectare is considered to be the best option, where the profitability was 190.70 %.

In 1955, the International Organization of Vine and Wine adopted a resolution declaring that grapes suitable for use in its fresh form were a special cultivar. Cultivation of grapes for storage is directly associated with the application of certain cultivation techniques. One of the important techniques is time and number of irrigations, because these factors affect the quality of table grapes. To study these issues, we carried out a test at the farm "Hadji Aleddin fermer”. This farm has 100 hectares of fruit-bearing vineyards. The results of the study showed that high-quality grapes for storage were obtained with Taifi rose after fourfold irrigation: during the bud bursting, before blossom, during the growth of berries and at the beginning of the maturity of the berries. With the increase in the number of irrigations, the size of berries increased, as a result, berry skin thickness was reduced and the quality during the storage deteriorated. Our studies revealed that both less and excessive irrigation can cause poor quality and reduced shelf life of table grapes Taifi rose.

The experimental part of the work was carried out in the farm SPK Agrofirma “Kultura” in the Bryansk region, in order to study the effect of smectite tripoli on productivity and reduction in the consumption of exchange energy per unit of output. The article presents the results of the test performed on calves under the age of 4 months weighing 74.4-76.8 kg, the animals received different doses of mineral additives. During the record period that lasted for 62 days, the weight gain in the test groups were 921 and 885 g, in the control group - 828 g. The exchange energy costs per one kilogram of the gain were 10.1-6.6% lower in the test groups. Feeding mixture with smectite tripoli did not cause any significant changes in the biochemical blood indicators. However, the amount of total protein in the second test group was 5.8% higher, and 2.5% higher in the third group. Therefore, feeding 30 g of smectite tripoli had a positive effect on the increase in the average daily gain, the reduction in the consumption of exchange energy and the increase in the content of total protein in the calves’ blood.

The technological stresses accompanying the process of growing poultry significantly reduce its potential productive qualities. In this regard, the implementation of activities aimed at preventing the effects of stress is an urgent task of poultry farming. The use of vitamin-mineral fodder additive Hepato products in growing chicken broilers contributed to an improvement in the quality of the products obtained, in particular, to a decrease in dystrophic changes in the liver. Sanitary indicators of slaughter products using the Hepatoto Procurement corresponded to GOST. The additive used contains a complex of vitamins and amino acids that have high bioavailability, which increases the rate of recruitment of live weight of broiler chickens. In this case, the meat production of experienced broilers was higher, which is associated with an increase in the average daily weight gain.

In 2014 and 2015, under laboratory conditions, we established the optimum dose of a new biological preservative in the amount of 3 g/t of feed during siloing of corn in the milk-wax stage of ripeness with a moisture content of 70-75%, the dose helped to reduce losses of dry matter and protein by 2.5 and 2.2 times, respectively, in comparison with the control. For validation of the results, there was prepared corn silage in the milk-wax stage of ripeness with the addition of the new biological preservative in the amount of 3 g/t of feed, the test was carried out in Roscha LLC, Bazarno-Karabulaksky district, Saratov region. The new biological preservative (developed by Fermlab LLC) contained the following bacteria: Lactobacillus plantarum ВКМ В-3055D; Lactococcus lactis subsp. lactis ВКМ В-3056D; Propionibacterium acidipropionici ВКМ Aс-2769D with the total content of 1x10¹¹ CFU/g. In the corn without biological preservative, the value of active acidity (pH) decreased, after a month of storage it reached 3.8 units. The content of butyric acid in the silage with automatic preservation was 0.03%, which was a result of protein putrefaction due to the high buffering. The silage with the new biological preservative after 30 days of storage was much better than the silage with automatic preservation: pH -4.1, total amount of organic acids - 2.80%, the content of lactic acid in the total amount of acids - 2.10%, acetic acid - 0.70%, no butyric acid, the content of lactic and acetic acids in the total amount of acids - 75 and 25%, respectively. The test on milk cows (N = 50, n = 25) showed that the silage with the preservative led to an increase in the average daily milk yield of 3.4% fat by 6.7% in comparison with the control. Morphological, biochemical indicators of the blood taken form the tested cows showed an improvement of anabolic processes, which ensured an increase in the milk production. Profit from the sale of milk from the cows of the test group amounted to 3,325.5 rubles after deducting the costs of purchasing the biological preservative.

The article provides an analysis of the current state of agro-industrial complex of the Oryol region and its individual areas, examines the sectoral structure of agriculture Oryol region.

In the article examine the state of government support dairy cattle-breeding in federal and regional levels and give the value of its efficiency. This study allowed to do a substantiated conclusion and after the priority directions for perfection of active system of government support as one of elements of ensuring of development agroindustrial complex.