06.00.00 Agricultural sciences
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METHODS OF DESTROYING COMMON RAGWEED IN SUNFLOWER CROPS IN THE KRASNODAR REGION
06.00.00 Agricultural sciences
DescriptionRagweed plant became quarantine malware on the territory of Southern Russia. In the Krasnodar region it has been extended to the territory of more than 4.62 million hectares. In the areas of its growth, it causes great damage to agriculture. By developing a strong root system and aboveground, it inhibits the row crops, especially sunflower. Another problem with this weed is producing large amounts of pollen that causes allergic reactions in the majority of residents of the province. This article discusses the importance of using modern methods of ragweed oppression, including chemical and biological methods in sunflower crops
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06.00.00 Agricultural sciences
DescriptionThe article presents a study of acclimatization characteristics and the effectiveness in the use of Holstein black-and-white cattle imported from Germany, Denmark and the USA under the conditions of the Central Non-Black Soil Area of Russia. The analysis shows that the imported animals are exposed to a number of stress factors that often cause the diseases and serious losses of cattle. The main reasons for the losses of heifers were the pathologies of the reproductive organs and the mammary gland (26,3%), locomotor system and distal extremities (15%), respiratory organs (21,2%), etc. The highest-producing dairy cows were those imported from the USA (9158 kg of milk throughout the first lactation). For the yield of milk, they are superior to animals imported from Germany in 1828 kg (P≥0,999) and those imported from Denmark in 1184 kg (P≥0,999). The average American Holsteins’ milk over a 305-day lactation is higher in fat (4,14%) than that of their German (in 0,28%) and Danish (in 0,21%) counterparts (P≥0,999). The same tendency is observed in the protein content in the milk
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CAYENNE, NEW HERBICIDE FOR FIGHTING WEEDS IN CROPS OF WINTER WHEAT
06.00.00 Agricultural sciences
DescriptionOne of the most destabilizing factors of crop production is weed infestation of crops. Despite annual herbicide treatment, weed infestation of crops of winter wheat remains high, with a predominance of annual dicotyledonous weed with a higher proportion of drug resistant on the basis of 2,4-D. We also notice increased range and density of perennial dicotyledonous weeds. New combinational herbicide called Cayenne, manufactured by LLC "Agro Expert group", which in its composition contains two active substances: thifensulfuron-methyl (500 g/l) and florasulam (170 g/l), highly inhibits both annual and perennial dicotyledonous weeds. According to the working program of the registrant's company we have tested Cayenne on crops of winter wheat in spring in the tillering phase and the formation of the second internode. It is shown that its use in doses of 0.025 and 0.035 kg/ha in mixture with 200 ml/ha of surfactant-Bit 90, W provides effective suppression of annual and perennial dicotyledonous weeds (90 – 100 %). The negative effect on the culture was not observed. At the same time, within 2-3 days after herbicide application we observed cessation of growth, chlorosis, dieback of growing points of weeds. Complete death was observed after 15 – 20 days
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06.00.00 Agricultural sciences
DescriptionThe article reviews four variants of laying nurseries of primary branches of seed production of long-grained rice varieties of the Kuban breeding taking into account their biological features, plots area ranges from 0,7 m2 to 1,1 m2 , seeding rate for one family – from 100 pcs./m 2 to 170 pcs./m2 . We have studied traits of long-grained rice varieties of the Kuban breeding - Ivushka, Avstral, Kurazh, affecting the yield and quality of seeds: yield, multiplication factor and fractional composition of seeds depending on laying multiplication nursery of first year progeny. The differences between varieties by the type of tillering, vigor, germination of seeds depending on planting system are shown. Optimal way for laying seed nurseries is found: for long-grained varieties with medium tillering (Kurazh type) – row length – 3,3 m and seeding rate – 120 caryopses/m2 ; for those with intensive tillering (Ivushka type) – row length – 3,8 m and seeding rate - 120 caryopses/m2 . This will allow using mechanical method of sowing using selective cassette seeding-machine in the primary seed production, reducing cost of seed production and increasing efficiency of labor, increasing volume of seed production of long-grained rice varieties in short terms and accelerating their implementation in the Kuban region for import substitution
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THE METHOD OF THE DRYING GRAIN INTENSIFICATION WITH ACTIVE VENTILATION USING MICROWAVERECYCLING
06.00.00 Agricultural sciences
DescriptionThe need of improving the grain drying technology is due to a significant volume of this operation, high specific energy and high standards to preserve quality of grain. In this regard, the development of new technologies and equipment aimed at reducing the cost of fuel and electricity, providing the preservation of grain quality has essential meaning to reduce the drying cost. Usually, the electrophysical effects on the dehydrated material not only contribute to the thickness reduction or destruction of the boundary layers and increase the surface of phase contact, i.e. they cause the combined effects of the intensification of the drying process that is economically favorable and they say for a broader practical use of electrotechnologies. Method of grain drying using microwave recycling in installations of active aeration bunker type allows increasing productivity compared with standard technology for up to 30% and reducing process energy consumption by 17%
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06.00.00 Agricultural sciences
DescriptionThe most important component of current assets of the agricultural organizations are material stocks. The optimum quantity of them is necessary for production process. The special aspects of formation and using of material stocks in crop research on micro- and meso-levels are considered in the article. It is established that the stok of fertilizers, crop-protection agents, seeds and planting material are exposed to considerable amplitudes of fluctuations during the different periods of year. The natural and biological cycle of development of plants needs of concentration of material stocks at the beginning of a production cycle that causes the necessity of attraction of the credits and commercial loans. The author studied material inputs structure in branch of crop research in Krasnodar region and its change in dynamics. The leading role of mineral fertilizers in formation of cumulative material inputs is revealed and the level of its production in the region is analysed. The researching character of the article is confirmed by the calculations and the analysis of legislative documents regarding recovery and increasing of soil fertility in Kuban region. The author emphasizes need of strengthening of the state intervention in price control in the market of mineral fertilizers, formations of sales system, aimed at minimization of dealers number in a chain "production – processing – consumption"
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THE INFLUENCE OF GENOTYPE OF RAMS ON THE QUALITATIVE CHARACTERISTICS OF MEAT
06.00.00 Agricultural sciences
DescriptionThe article presents the results of the qualitative assessment of meat of crossbred rams. The analysis of the data shows that crossbred rams of 2, 3 and 4 groups increased the absolute mass of muscle tissue compared with purebred 12.3; of 18.2 and 25.6%, respectively. Fine-wooled rams were superior in the relative content of bone in carcasses of crossbred 1.1- 4.2 percent. Output of pulp for 1 kg of bones had the advantage of crossbred rams 2, 3 and 4 groups compared with purebred 0.12; 0.24 percent and 0.44 kg respectively. The analysis of the data shows that in carcasses of young animals of all the groups the greatest specific weight took cuts of the 1st sort. Nevertheless, the valuable parts to carcass weight balance was higher in the carcasses of the crossbred calves. So, rams 2, 3 and 4 groups, this advantage was 1.9; 4.5 and 4.7%, respectively. Thus, the analysis of a complex of indicators characterizing the quality of meat rams of different genotypes revealed that the superiority for the studied indices took place for two - and three-bred animals. These options of both simple and complex industrial crossing are promising and can be implemented and used in the farms of Merino and crossbred sheep
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06.00.00 Agricultural sciences
DescriptionThis article presents the results of using "Gorlinka" mustard protein-containing feed concentrate, instead of sunflower meal in the feeding of broiler chickens of the cross of "Cobb-500". The studies were conducted in the conditions of Krasnodonskaya Poultry farm of the Ilovlinskiy district of the Volgograd region. Replacing sunflower meal with a product of processing of oilseeds which is "Gorlinka" mustard protein-containing concentrate, in the feed mixture in the experimental broilers had a positive impact on the productivity, physiological state of the birds, product quality and economic performance. The use of this mustard protein-containing feed concentrate in feeding of meat birds contributes to the increase of live weight by 3.46-of 6.65% and slaughter yield by 1.38-1.98% and improvement of quality indicators of the carcasses. Morphological and biochemical parameters in experimental broiler chickens in all the groups were within the physiological norm, which indicates a normally occurring redox processes in the poultry organism. However, adding "Gorlinka" mustard proteincontaining feed concentrate into experimental feed for broiler chickens contributed to the increase in the content of total protein, calcium, phosphorus in blood serum in comparison with analogues from the control group that received sunflower cake. As a result of the research, the economic effect in the experimental groups was up 710,40-1085,53 rubles
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06.00.00 Agricultural sciences
DescriptionExperimental studies were carried out on the breeding farms of "Russian pork" in Millerovo district of the Rostov region on purebred and crossbred animals derived from crosses of pigs and the Don steppe types of meat, breeds of Landrace and Pietrain. The Don type of meat was used in the experiments as a control. When crossing, the DM-1 pigs were used as the parent form, and CT as a father to give twin breed hybrids DM-1 x ST. The recent delivery of boars of Landrace and Pietrain breeds allowed to receive twin breed hybrids of genotypes of CT × L and DM-1 × P
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06.00.00 Agricultural sciences
DescriptionThe proposed agro technology for the cultivation of soft winter wheat contributes to the reproduction of fertility of leached Chernozem of the Western Ciscaucasia. As a result of application of fertilizers in the arable layer of soil hydrolytic acidity decreased by 21.8%, humus content increased by 10.3%, mobile phosphorus - by 54.8%, mineral nitrogen by 10.3% and potassium - by 9.6% compared to the control. Studied agricultural technology allowed to increase the yield of winter wheat to 81.8 kg/ha and protein to 15.3 per cent, of gluten, to 27.8%. We have noticed exceeded concentration of mobile phosphorus in the upper soil horizon (1.5 MРС) in the cultivation of wheat after alfalfa, which contributed to reduced grain yield. Under conditions of prolonged application of fertilizers and pesticides reduced the content of mobile forms of trace elements - copper and zinc. The content of mobile forms of Mn, Cu, Zn, Cr, Ni, Co, Pb and Cd below the limit values of environmental and Toxicological regulations clayey and loamy soils for agricultural purposes. The trend of accumulation of cadmium in the green mass of plants (~ 1.2 MPC) and winter wheat grain up to 1.5 MPC for baby food