06.00.00 Agricultural sciences
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06.00.00 Agricultural sciences
DescriptionThe effect of seeds shapes and sizes to field survival, plant stand, harvesting amount and structure of calendula crude drug were under investigation. Biological feature of calendula is heterogeneous seeds formation, when the same inflorescence forms seeds of various shapes and sizes. The following seeds fractions according to their shapes and sizes were used for sowing: uncinate shaped, crescent shaped as well as unseparated, including, except uncinate and crescent seeds, ring-form and scaphoid shaped seeds. It was discovered that maximum indices of laboratory, field survival of calendula seeds and plant stand were in conjunction with uncinate shaped seeds. Maximum crude drug harvest was in conjunction with the sowing seeds of uncinate shape, varied from years from 2.11 to 2.40 t/h; minimum- at unseparated seeds sowing, varied from years from 1.83 to 2.05 t/h. Crude drug extreme efficiency was determined in 1-3 gatherings by inflorescence weight gain and its quantity increase on the same plant. According to the size of elements of crude drug harvesting structure (inflorescence quantity and mass of the same plant, the same inflorescence mass) the variant of uncinate shaped seeds sowing had advantages
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06.00.00 Agricultural sciences
DescriptionThe accumulation of heavy metals was studied in different component parts of a White squash (skin and flesh, flesh, seed skin, seed kernel, peduncle). It is known that the basic source of feed for agricultural crops are mobile water soluble organic and mineral soil combinations which are polluted by heavy metals in different degrees. In the process of their migration they are able to accumulate in different parts of plants or to disperse. The mechanism of quantitative estimation of migration of heavy metals in direction of removal of mobile water soluble soil combinations to various parts of a White squash is developed by the author. The ranks of mobility of heavy metals are made from the most mobile manganese to the most indifferent iron. The model of estimation of mobility of the rest spectrum of heavy metals is chosen, namely: lead, cadmium, zinc, copper, nickel, cobalt in relation to manganese and iron. Basing on the position of a separate element in a mobile rank and its concentration it is possible to define the source of entering to a squash fruit. It may be water soluble soil combinations, irrigation water and atmospheric aerosols
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06.00.00 Agricultural sciences
DescriptionThe reaction of winter wheat cultivar ‘Antonina’ on the level of fertility and doses of fertilizers on crop productivity was studied. Investigations are carried out in multivariate 11 –course crop and grain-grass rotation stationary: factor ‘A’- the fertility of the soil; 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 - average (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 cultivation: 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%. On the basis of proven researches it was found that for the sustainable yield of winter wheat the dose of mineral fertilizers should be increased and nitrogen - up to 140 kg per hectare. The increase in yield is due the rise of the quantity of grains per ear and weight of grain per ear
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06.00.00 Agricultural sciences
DescriptionThe impact of anthropogenic pollution on soil phytotoxity and on triticale plants in Vladikavkaz suburb was investigated in the work. The objects of the study were sod-gley leached soils and different varieties of triticale plants. The research was conducted in 2010-2011 at the Department of Biology of Gorsky State Agrarian University. The article gives data on microelements content in soils and plants within the range of influence of Vladikavkaz industrial enterprises. There was a marked change of miroelements’ mobility in soil and activity of their penetration into plants during fertilization. The sort characteristics of microelements’ accumulation in vegetative mass of triticale were researched. The conducted research is informative for soil and plant condition monitoring in anthropogenically polluted environment. The work indicates the increasing danger of microelements (including heavy metals) accumulation in soil and their inclusion in biological cycle in concentration that is too toxic for plants, animals and people during the usage of fertilizers, especially their high doses. The most dangerous among heavy metals are mercury, cadmium and lead. We used MPC rate of excess to estimate the content of these metals. The results of the research can be used in soil and cereal plant condition monitoring and diagnosis and in development of regional environmental regulation
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BEST AVAILABLE TECHNOLOGY AS AN ELEMENT OF ECOLOGICAL MODERNIZATION OF PIG-BREEDING
06.00.00 Agricultural sciences
DescriptionThe article analyzes the main factors of the negative impact of pig farms on the environment, for the characteristics of which are used criteria such as emissions of ammonia, methane, nitrous oxide, dust, loss of nitrogen and phosphorus in manure output, feed consumption and water consumption, economic evaluation, capital costs of reducing emissions, operational cost. The technical level, resource and energy consumption in the production of pork have been analyzed in a comparative perspective. The necessity of implementation of best available techniques in order to ensure environmentally oriented production growth has been provided. The importance of the development of technology selection algorithm and clarification the basic criteria for the selection has been emphasized. Also, there was detected the role of technical regulation for the prevention of excess pollution. The necessity of a comprehensive approach was proven for the implementation of NDT in the framework of environmental and industrial policies. Implementing NDT will provide the ecological modernization of pig production, which is confirmed by the experience of European countries, successfully implementing the concept of NDT from the 70s of the twentieth century. At the same time, not only economic measures should be used (exemption from pollution charges, grants and subsidies), but also the administrative tools (based on a valuation of NDT, integrated permits). Daylight technological regulation will provide "green" economic growth and will contribute to solving social and economic problems. Implementation of the project is not possible without the exchange of information, the definition of time and economic characteristics of the implementation of NDT, comparative analysis and classification technologies to NDT. In 2017, it has already been planned to publish the NDT reference "Intensive breeding of pigs,” while the implementation of best available technologies will become the basis of ecological modernization of the industry. The inclusion of the author to the technical working group on development of the handbook "Intensive breeding of pigs" allows to participate on-line in the discussion of topical issues
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06.00.00 Agricultural sciences
DescriptionThe article presents results of the study of yield, mechanical composition and quality of bunches of newest white grapevine varieties called Artemis, Sauvignon tamanskii and Inkroche tamanskii, in the conditions of Taman in the Krasnodar region. The yield of the studied genotypes ranged from 10.4 to 13.3 t / ha: the highest yield was in Artemis, and the lowest – in Sauvignon tamanskii. The average weight of the bunch was in Sauvignon tamanskii (152 g), the variety Artemis had 143 g and Inkroche tamanskii had 130 g of bunch weight. The percentage of berries in clusters ranged from 95.3 in Artemis to 95.9 in Inkroche tamanskii and Sauvignon tamanskii. The ratio of fruit mass to the mass of crests was 20.3 in the varieties of Artemis and 23.5 in Inkroche tamanskii and Sauvignon tamanskii. In genotypes of Artemis, Sauvignon and Inkroche Taman Taman the weight of 100 berries was 200, 160 and 130 g, respectively, the mass of 100 seeds - 4.6; 3.1 and 2.9 g, the average weight of the pulp from the juice to the weight of the skin - 24.3; 19.5; 15.9. The percentage of pulp and juice in clusters of the studied varieties was 85,9-89,1%, and the ratio of pulp to juice to the solid residue 6,1-8,2. Yield of musts from the studied sample was 74,5-75,4%. The content of sugars in the berries (17,5-19,6 g / 100 cm3) was dependent on the yield, the characteristics of varieties and timing of the harvest, but the harvest was favorable for the production of beverages and wine materials
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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
DescriptionWe have proposed the method of presowing processing of seeds of winter wheat using a hydrophobic paraffin-wax system of the new composition. Water protected paraffinceresin coating has been used before for storage of garlic. However, the paraffin coating were not applied to wheat seeds and were not investigated their effect on germination, growth and further development of plants of winter wheat. This work has been done for the first time. The ceresin wax is replaced by sunflower wax. New component composition of the hydrophobic waterproof coating winter wheat seeds: sunflower wax – 15-20 % wt .; paraffin – all the rest of it. Sunflower wax is a surfaceactive substance and has the properties of the plasticizer and the dispersant of the dispersed structure of the paraffin. The advantages of this coating: it protects the seeds from moisture loss, regulates the timing of their germination, contributes to the preservation of accumulated nutrients, and enhances plant growth and development; it increases the yield of wheat. In the field, we have set growth stimulating ability of paraffin-wax coating of winter wheat seeds of variety called Charade. The resulting increase in yield was 20% (control of 52.6 с / ha), while maintaining the quality of grain. This use of sunflower wax solves an important environmental problem – disposal of oilseed production waste
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06.00.00 Agricultural sciences
DescriptionThe article is devoted to the estimation of the dependence of perennial grass herbage’s productivity on the dose and distribution of nitrogen fertilizers during the vegetation, as well as from the dynamics of the species composition by years of use. It was revealed that for cocksfoot-timothy grass mixture an increase in the rate of nitrogen fertilizer for every 10 kg of active ingredient leads to an increase of yield by 0.27 tons/ha. The selection of components of grass mixtures and rational fertilizer doses forms the herbage which provides a yield of about 7,0-12,0 tons/ha of dry mass and 58,1-99,6 GJ of energy exchange. It is established that competitive relations in grass mixtures are exacerbated with increasing doses of fertilizers. The timothy grass develops successfully in a mixture with the cocksfoot with a low level of mineral nutrition (N80). A high level of mineral nutrition speeds up the formation of single-species herbage - the cocksfoot. Meadow fescue grass provides sustainable yields on medium and high backgrounds of mineral fertilizers in combination with the cocksfoot. Recommendations for a nitrogen dose of more than 200 kg per hectare for fertilizing mixed grass crops with the cocksfoot and about 100 kg per hectare for clover-cereals mixtures without cocksfoot are suggested
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ORIGIN OF SORGHUM AND DEVELOPMENT OF ITS BREEDING
06.00.00 Agricultural sciences
DescriptionSorghum is cultivated in many countries of the world on around 50 ml hectares. The main producers of sorghum are India, Nigeria, Sudan and the USA. Sorghum comes from equatorial Africa. India and China are the secondary places of origin and formation. The USA achieved great success in breeding, seedgrowing and agro technologies of grain sorghum. In the country sorghum occupies 14.4% of the world amount of sowing areas; the gross yield is 40%. Sorghum breeding on Don was started by E.S. Yakushevsky in 1938. In 1963 after a long break the work was restarted at the Zernograd Breeding Station headed by Ya.I. Issakov. At present the amount of sowing areas for sorghum is constantly increasing in RF (220.3 thousand ha in 2015). It occurs due to aridity of climate and more frequent use of the crop as insurance. Besides, the development of white kernel varieties gave an opportunity to use sorghum for starch and spirit. There are 221 varieties and hybrids of sorghum registered in the State List. The main directions of breeding work with grain sorghum are early maturity, suitability for mechanical harvesting, productivity and grain quality. The ARRIGC developed the white kernel early maturing varieties ‘Velikan’, ‘Zernogradskoe 88’, ‘Ataman’ without necessity to be dried after harvesting, with productivity of 8 t/ha. The main directions of breeding work with sweet sorghum are early maturity, high intensity of initial growth, low height, resistance to lodging, high productivity and quality of green chop. The ARRIGC developed the varieties for fodder use (‘Listvenit’), for spirit and treacle (‘Debyut’ and ‘Zernogradsky Yantar’). Sorghum due to origin and varietal diversity even in dry and hot parts of the world allow obtaining stable, high yields of grain and green chop. This makes sorghum the leading grain-forage and food crop