06.00.00 Agricultural sciences
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06.00.00 Agricultural sciences
Description
The article presents the results of the study on the magnesium mode of leached chernozem of Western Ciscaucasia at three rotation of grain-grass-tilled crop rotation. Magnesium in the soil is represented mainly by non-exchangeable form, the number of which is estimated at 90,18 and 91,29 % of gross reserves. Exchange forms of magnesium are 8,68 and 7,71 % respectively in arable and the subsurface layer. The share of water-soluble and organic forms account for less than 1 % - of 0.62 and 0.68 and 0.46 and 0.38% respectively. For three rotation 11-full rotation of gross stocks of magnesium in the soil in which crops were grown without fertilizers has decreased by 0.02 % (200 mg/kg), with fertilizers of 0.03 and 0.02 % (300 and 200 mg/kg). Intense magnesium has been leached from the topsoil. There was a change of the soil content of the forms of magnesium. In the rotation without fertilizer, the share of non-exchangeable magnesium in the General Fund item increased from baseline by 0.27 % in arable and 0.11% of the subsurface layer of soil that the absolute content decreased. The amount of water-soluble, exchangeable and organic magnesium of the soil decreased. Reducing the amount of water-soluble (0.05 and 0.06 %) and metabolic (0.18 and 0.02 %) of magnesium was due to its consumption of the plants. The proportion of magnesium organic part of the soil is reduced as a result of steadily declining yields, and, therefore, the amount of organic residues. In crop rotation, use of mineral fertilizers we have observed different behavior of magnesium compounds in the soil. The number of non-exchangeable magnesium decreased from baseline by 0.13 % in arable and 0,58 % of the subsurface layer of soil. The content of the exchange of magnesium increased respectively 0.43 and 0.41 %, water soluble - 0.13 and 0.10 %, and the organic part of the soil - 0.02 and 0.02 %
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06.00.00 Agricultural sciences
Description
The article presents results of studying the total content and the forms of Nickel in the Western Caucasus leached Chernozem at three rotations of 11-fild grain-grass-arable crop rotation. The Nickel content in the soil is close to its Clark (40 mg/kg) and significantly lower than UEC (80 mg/kg). Scientifically based system for fertilizing crop rotation does not lead to the accumulation of Nickel in the soil, but creates the conditions for increasing its mobility. In the future, we may experience the need of the inclusion of Nickel into the system of fertilization of crops grown on leached Chernozem. The Nickel content in the leached Chernozem before development of crop rotation was generally close to Clark soils of the world (40 mg/kg) and significantly lower than UEC (80 mg/kg), which favors the production of high quality produce. After three rotations of the crop rotation without using fertilizers, the total content of Nickel and acid-insoluble form in the soil decreased slightly, but the number of the element extracted with both buffer and acid extractor, increased insignificantly. The decrease of the total content of Nickel and its reserve (acid-insoluble) fund in the soil we explain with the annual exclusion of the element with harvests crops from the fields, and the trend of increasing mobile and acid-soluble - mineralization of humus followed by acidification of the soil. Systematic mineral fertilization on field crop rotation was slightly up for the Nickel fund of the soil, but did not ensure the recovery of the initial level. At the same time, at fertilize crop rotation we observed a clear trend of increasing the number of rolling and acid-soluble Nickel. If we consider that the value of the MPC for moving Nickel is equal to 6 mg/kg, these changes may not have any negative environmental impacts, but rather will encourage the use of this ultra-microelement by plants
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TITANIUM IN THE WESTERN CAUCASUS LEACHED CHERNOZEM
06.00.00 Agricultural sciences
Description
The article presents results of studying total content of titanium in both not fertilized and systematically fertilized black leached soil. Science-based system of fertilizer crop rotation allows solving problems of sufficient balance of nutrients in the system of "soilplant-fertilizer", increasing the quantity and improving the quality of the crop. At the same time, their application is active influence on the natural environment. In the soil, there is an input of a large set of chemical elements come along with fertilizers. In addition, due to their physiological pH or alkalinity, fertilizers are capable to affect the physical and chemical properties of the soil. The use of mineral fertilizers in scientifically based doses on the fields of crop rotation for 33 years virtually has no impact on the content of titanium in leached Chernozem. In the arable layer its number increased only by 2.1 %, and in subsurface - it is the same as in the crop without fertilizer. Enrichment of topsoil with titanium is due to desilication of rocks during weathering. Due to the low solubility of titanium minerals, they remain in the place longer, and therefore, the content of the element in the soil increases. As you know, fertilizers applied to the fields of crop rotation, increase the intensity of the biological cycle of substances and thereby enhance the process of destruction of the parent rocks
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BREEDING GALLOWAY BREED OF CATTLE IN THE CONDITIONS OF THE SMOLENSK REGION
06.00.00 Agricultural sciences
Description
The article presents the results of the study of selection, technological and economic aspects of breeding Galloway cattle breed in the Smolensk region. As it was shown by the results of the studies, it begins to form breeding base of this breed in the region. This year, the regional tribal enterprise delivered two bulls initiated the accumulation of hereditary material. We have found that the greatest intensity of the development has the descendants of the bull named John. The dairy cows in the herd vary depending on the age of the animals and is 179-223kg. Allelofond of the animals are 17 alleles of EAB-locus of blood groups characteristic of cattle specialized meat breeds. The economic efficiency of breeding animals of the Galloway breed in the region was 1291500 rubles. The article recommends use of the Galloway cattle breed for further breeding in the Smolensk region and introduction of resource-saving technologies of beef production
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USE OF NEUTRALIZED PHOSPHOGYPSUM AS A MULTICOMPONENT FERTILIZER FOR RICE CROPS. MESSAGE 1
06.00.00 Agricultural sciences
Description
Over the past 15 years due to removal with crops of rice crop rotation, as well as with field waste and seepage water content of mobile forms of boron in soils of rice irrigation systems in the Krasnodar region decreased by 10 %, cobalt by 14 %, manganese by 10 %, copper by 7 %, molybdenum by 15 % zinc by 6 %. Impoverishment of soil with calcium and sulfur is observable. Need of using micronutrients for this crop is also determined by lowering mobility of most microelements in flooded soils. Partly this problem can be solved by use of neutralized phosphogypsum – waste product of wet-process phosphoric acid. With its application in dose of 1 t/ha, field receives 265 kg of Ca, 215 kg of S (general) 20 kg of P2O5 and 9.8 kg of SiO2, so it compensates for the loss of calcium from the rice soil, as well as solves the problem of sulfur, silicon and partly phosphorus fertilizers. Data showing possibility of use of neutralized phosphogypsum as multicomponent fertilizer for rice crops are given. Phosphogypsum reduces sparseness of rice plants in ontogeny, thus forming a dense agrocenosis: plant density is 24-25 pcs./m2 that is higher than on application of N120P80K60. Plants with such agricultural background by their height and leaf area did not differ from control ones (N120P80K60), and their dry weight was higher by 2-6 %. With fertilizer system N120P80K60 application of 4 t/ha of phosphogypsum during main fertilizer treatment provides the same level of phosphorus content in the soil and plants, as application of 100 kg/ha of ammophos. Rice yield increases by 0,57 t/ha or 8,98 %. Yield growth is the result of increasing survival capacity of plants, seed setting of panicle and weight of grain per plant
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06.00.00 Agricultural sciences
Description
The results of the work experience carried out in the poultry breeding farm of Limited Liability Company «Incubator-poultry plant Pervomaiskaja» on the effect of the multifunctional feed additive «Tetra+» on productivity of males and laying hens in the production of broiler chickens. It is found that males experimental group receiving the feed additive in the diet «Tetra+» have better blood serum biochemical indices in comparison with the control group cockerels. This indicates that the feed additive «Tetra+» shows the properties to improve liver function and decreased intoxication of male manufacturers. It was revealed, that in the experimental group increased divorce figures, while the control group of males producing hatchability is reduced, and the end of observation of this indicator of the trend towards recovery is not evident. It recorded the highest percentage yield of hatching eggs from hens of the experimental group, while the control group showed a tendency to reduce this figure. Thus it may be noted that the use of a multifunctional feed additive "Tetra +" when feeding cocks and hens can improve productivity, reduce bird deaths and to strengthen the protective function of the body of birds
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06.00.00 Agricultural sciences
Description
The article presents the results of researches of the different systems of basic treatment of soil under a sunflower on a closeness, aggregate composition, supplies of productive moisture on regular black soil of the Krasnodar region
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INFLUENCE OF PROTECTIVE COATINGS UNDER DIFFERENT STORAGE CONDITIONS OF GARLIC BULBS
06.00.00 Agricultural sciences
Description
The influence of protective coatings on quantitative loss of garlic was investigated at its warm) and cold storage under various conditions of relative humidity. The following varieties of garlic people's selection were studied: winter varieties – Tian Shansky, Otradnensky; spring varieties – Sochinsky and Iglinsky Local. Paraffin-ceresin composition (PK-1) was first proposed as a protective hydrophobic coating of garlic bulbs and its combination was scientifically based (the main component is paraffin, plasticizer is Ceresin C-65 and surface-active supplement is a fraction of synthetic fatty acids). Physical and mechanical performance properties of PK-1: melting temperature 58 C; resistance at 20 C 1,0 МПа; volumetric shrinkage 15%; plasticity 0,5·10-4 1/МПа; water vapour permeability 6,5g/m2 per day.Waterproof properties of hydrophobic protective coatings (paraffin-ceresin PK-1, alloy of paraffin with beewax PК-4, paraffin without supplements P) were compared with hydrophilic water solution of polyvinyl alcohol PWS-5. According to the increase of the moisture-proof properties, the investigated coatings form the following series: P. PWS -5, PК-4, PК-1. The maximum efficiency of garlic storage under various temperature conditions and relative air humidity was achieved when using a protection film of PК-1. Compared with control (without coating) PК-1 reduced moisture loss in garlic bulbs for 3-13 times depending on the variety, and storage duration of winter garlic varieties increased for 2 times. Iglinsky Local is the most moisture resistant of all the investigated varieties, and Tian Shansky variety is less moisture resistant
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AGRO-ECONOMICAL EVALUATION OF CRIMEAN INDIGENOUS GRAPE VARIETIES
06.00.00 Agricultural sciences
Description
The article presents the results of the studies of 11 varieties cultivated in the eastern region of South Coast wine-growing zone of Crimea (planting of "Solnechnaja Dolina ", near Sudak mountain) in the area of their natural growing, where was formed the gene pool of grapes for a long time. As a result, the three-year (2010-2012) study found that the majority of indigenous varieties had small number of fruitbearing shoots in the bush: the varieties with colored berry - 53,3-73,3%, in white-berry - 46,6-75,9% except Shabash variety - 79.9%. We have identified the most productive varieties which were Dzhevat kara (62.2 t / ha), Kokur Beliy (48.9 t / ha), Kapselsky Beliy (44.4 t / ha), and varieties with female type of flower: Kefesiya, Ekim kara, Kock pandas, Sary pandas and Crona gave not high yield: 22.2; 22.2; 24.4; 28.9 and 28.9 t / ha. On the strength of growth, productivity and the accumulation of sugars in the juice of berries, we picked out varieties of Dzhevat kara, Crona, Kapselsky beliy. According to the main economic indicators, it turned out that the most profitable varieties are Dzhevat Kara, Kokur beliy and Kapselsky beliy. Hence, these varieties in conditions of the Crimea have much greater prospect of reproduction and development of production
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USE OF NEUTRALIZED PHOSPHOGYPSUM AS MULTICOMPONENT FERTILIZER FOR RICE CROPS. MESSAGE II
06.00.00 Agricultural sciences
Description
The article shows a possibility of using neutralized phosphogypsum as multicomponent fertilizer for rice crops. In the system of rice fertilization replace of 150kg/ha of ammophos during main application with 40 kg/ha of carbamide and 4 tons/ha of phosphogypsum applied in spring provides the same content of available forms of nitrogen, phosphorus and potassium in soil and plants as with application of N120P80K60. Application of phosphogypsum in spring before sowing is less effective than application in autumn before plowing. When applicating phosphogypsum in spring 2013 with a rate of 4 t / ha the obtained yield was 0.57 t / ha or 8.98% higher than in the control, and in 2014 it was not different from that obtained with the application of solid mineral fertilizers with a rate of N120P80K60. With autumn application of phosphogypsum increase in yield in 2014 was 0.98 t / ha or 12.6%. Yield growth is the result of increasing the survival of plants, grain content in panicle and grain weight per plant. Use of neutralized phosphogypsum is economically feasible. Relative benefits of using phosphogypsum instead of phosphorus fertilizer (ammonium phosphate) on rice crops in the Federal State Unitary Enterprise SRSF "Krasnoarmeyskiy" named after A.I.Maystrenko, Krasnoarmeyskiy district of Krasnodar region at the optimal rate amounted to 13139.7 rubles per 1 ha
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