As a result of the study of the influence of different forms, doses and timing of mineral fertilizers on the content of heavy metals in soils of different areas of the agricultural landscape, in the conditions of the relief of the Timashevsky district, there was no excess of MPC values for both gross and mobile forms in the arable and subsurface horizons of ordinary black soil. It is noted that mineral fertilizers do not have a negative impact on the agroecological indicators of ordinary black soil
Due to the fact that in floodplain lands there is instability in the yield of agricultural crops because of flooding and waterlogging, protection of the territories is necessary. The area of the foothills of the Kuban River, where the reclaimed field is located, was chosen as the object of study. Since this territory is subjected to periodic flooding, and in order to preserve the fertility of this soil, a set of measures has been taken. Hydrometeorological and hydrogeological studies are used as the main method. The parameters of the dam and drainage system were determined, the locations of the regulatory structure and the location of the observation wells were substantiated. To assess the measures taken, soybean was grown on the field during the period of greatest rainfall. After sowing, soil samples were collected at three points and conducted research aimed at the influence of the drainage system. It has been established that the complex of measures influences the meliorative state of the field for the better. In the area near the main collector, the soil is most depressed after the processes of flooding and waterlogging, the seedlings of the soybean plants are sparse, and by the middle of the field the plants developed evenly and had almost identical morphometric indicators. Were obtained biometric indicators in different parts of the soil, which are confirmed by experiment
The aim of this work is to study the strength and the direction of the influence of morphological and biochemical properties of tomatoes on the quantitative, qualitative, financial and economic results of their cultivation and the degree of determinism of these results. Achieving this goal is of great scientific and practical interest for scientists, breeders and vegetable growers-practitioners. This allows breeders to obtain new high-performance varieties of tomato hybrids, and farms to choose hybrids, the cultivation of which is most effective from a financial and economic point of view. To achieve this goal, we use automated system-cognitive analysis (ASC-analysis) and its software tool which is the intelligent system called "Eidos". A numerical example based on real data on tomato hybrids has been considered in detail
Modern domestic tomato hybrid should be competitive with tomato hybrids of foreign selection. To create a model of a future hybrid, a collection of modern tomato hybrids of domestic and foreign selection presented on the seed market was investigated. During the study, a modern method of genetic study of the genotype of tomato Real-Time PCR was used. As a result of the study, a model of a modern tomato hybrid with tolerance to powdery mildew of tomato was described. In the future, it is planned to carry out breeding work to create such a hybrid. In the course of studying the F1 collection of tomato hybrids, it was found that the modern model of a tomato hybrid should have the following characteristics: a semi-vegetative type of growth with closely spaced internodes, early and medium ripening, a simple type of inflorescence with 4–5 fruits if the average weight of fruit is more than 200 grams; with 6–7 fruits weighing up to 150 grams for collection by tassels. High strength of fruits with the absence of concentric and radial cracking, suitable for long-distance transportation, is required. In the genotype of the modern hybrid model, in addition to tomato powdery mildew resistance (Oidiun lycopersici), it is necessary to have a complex of resistance genes to such diseases as tobacco mosaic virus (Tomato mosaic tobamovirus), Fusarium oxysporum, verticillosis wilt of the tomato; ), brown spot of tomato (Cladosporium fulvum). It is also desirable the presence of a gene of resistance to the yellow leaf curl virus of tomato (Tomato yellow leaf curl virus) and the gall nematode (Meloidogyne incognita)
Modern precision agricultural technologies such as No-Till lead to increasing of pathogens populations in the soil and frequency of application of chemical plant protection products. The production of biological agents directly in the farms, as well as the use of other low-risk agro-practices, among which methods for reducing herbicides from the group of glyphosates, is an effective way to resolve these problems. Such methods can reduce the cost of production and reduce the number of applied plant protection products. The use of the tank mixture Bacillus subtilis + complex aminoamides was very effective in the treatment of wheat seeds. Biological protection against root rot of crops of cereal crops by their treatment with Crocus and Pseudomonas fluorescens tank mixture is also effective. This treatment not only reduces the infection of plants with root rot, but also develops their biometric characteristics, the amount of chlorophyll in plants in the tillering stage. To reduce the likelihood of epiphytoty and epizootic diseases in agrobiocenoses, it is necessary to introduce, in addition to early spring treatment, the application of biological agents’comp-lex: (which can be carried out simultaneously with the addition of glyphosates under the No-Till conditions) Trichoderma viride. In a number of regions of Russia, an innovative method of enhancing the action of glyphosates in this technology has been applied. It is based on the introduction of the drug Crocus glyphosate into the tank mixture, which accelerates the penetration of glyphosate and its transport through the phloem to the root system. In this case, predominantly violated chiquimous (phenolic) exchange. Experiments have shown that the use of this method effective and leads to a change in the concentration of aromatic amino acids (phenylalanine and tyrosine), their number drops sharply compared with the benchmark on the 7th day after the plants are treated with this tank mixture
CJSC Priazovskoye located in the Slavyansk district is in the area of the Priazovie marshes. Soil and climatic conditions make it possible to grow many heat-loving crops including rice. The farm specializes in the cultivation of rice and the production of meat and cattle dairy products. The rice system is divided into 8-crop rotations, where, in addition to rice, animal feed is grown. Livestock waste is used as organic fertilizer in the fields of crop rotation. In the field experiment with perennial grasses (alfalfa) as predecessor, the change in yield and seed quality of three rice varieties Rapan, Diamant and Flagman was studied. The rates of the applied fertilizers were: phosphorus 100 kg/ha, potassium 60 kg/ha and increasing rates of nitrogen from 30 to 120 kg/ha. It has been established that the optimal rates of nitrogen fertilizers after alfalfa are 90 kg/ha (a.i.) for Rapan and Diamant varieties and 60 kg/ha (a.i.) for Flagman. At the same time, the maximum grain yield was obtained for Rapan - 7.45 t/ha, Diamant - 8.27 t/ha, Flagman - 7.62 t/ha , and the best seeds were formed in terms of germination and emergence. Analysis of the crop structure of rice varieties showed that with increasing rates of nitrogen the productive tillering and grain mass per panicle increased. With the nitrogen rate higher than the optimum, the number of unfilled grains per panicle and the grain /straw ratio have increased. Based on this analysis, it can be considered that the number of unfilled grains per panicle and the grain /straw ratio can serve as indicators of the response of rice plants of these varieties to an excess of the optimal level of mineral nutritions
The article presents the results of studies on the influence of the main tillage in the technology of cultivation of sunflower on its agrophysical properties. The object of the research was sunflower, the Vulkan variety, the predecessor was winter wheat. The soil was superpowerful low-humus typical leached chernozem. The studies were carried out in a stationary experiment on the basis of the experimental field of the department of general and irrigated agriculture of KubGAU in accordance with generally accepted methods for experiments with grain crops. Variants of experience (basic tillage): Option 1 (A0) - dump plowing to a depth of 25-27 cm (control); option 2 (A1) - chiseling 25-27 cm; option 3 (A2) - disc peeling at 8-10 cm; option 4 (A3) - zero treatment (direct seeding). On the basis of the conducted research, a general trend of agrophysical soil deterioration during the entire vegetation period of sunflower development and with a decrease in the intensity of the main tillage in the technology of its cultivation is revealed. So, the soil density was minimal, and the total porosity and soil moisture, as well as the reserves of productive moisture were maximal when carrying out land plowing at a depth of 25-27 cm to the main tillage. 25-27 cm) slightly worsened these figures. Conducting in the main tillage only surface disc peeling to a depth of 8-10 cm led to a further deterioration in these indicators. And in the last place there was the option where the soil was left without primary treatment under direct sowing of the crop (the variant of zero tillage). And just before harvesting sunflower (September), zero tillage provided the highest levels of soil moisture and reserves of productive moisture
The experiment has examined the effect of various agricultural technologies on the yield of winter wheat, depending on the factors studied. The studies were conducted at the experimental station of the Kuban State Agrarian University under the conditions of multifactor multi-year monitoring. The experiment was carried out in a typical for the zone 11-field grain-grass-tilled crop rotation. In this paper, we considered some of the elements of the winter wheat cultivation technology, the Brigade variety using different doses of fertilizers (N50P50K120 and N100P100K240) on four tillage options (plowing, chisel loosening, disc peeling and zero tillage). On the basis of the conducted research, it has been established that in order to obtain a stable harvest of winter wheat grain, higher doses of mineral fertilizers should be applied, which also ensures high indicators of grain quality. The considered agrotechnical methods led to a positive change in crop structure and grain quality
This article discusses some elements of the Brigade cultivating winter wheat varieties using different doses of fertilizers (N50P50K120 and N100P100K240) in four tillage options (plowing, chisel loosening, disc chopping and zero treatment). The experiment was conducted in a multifactorial stationary conditions. The considered agrotechnical techniques have led to a change in the density, hardness and structural composition of the soil. The most optimal values of these parameters have been obtained by using plowing and chiseling
One of the most important state tasks in the world is the production of grain in the most profitable way. The use of biological products in the cultivation of grain is very important in our time. Identification of the effectiveness of the use of biological products will allow enterprises growing winter wheat to determine the need for their use. The study was conducted in 2015-2018 in the field areas of the peasant farm called "Yurchenko", located in the Alexanderovsky district of the Stavropol region, in the area of unstable moisture on dark chestnut soils. Winter wheat is cultivated using biological products on the farm, using biopreparation Vimpel with drugs of fungicidal action of Alirin B and Alirin C - 522 plants per 1m2. The use of biological products of fungicidal action allowed to reduce the activity of fungal diseases, and Vimpel biopreparation increased plant nutrition. After that, this processing scheme allowed to obtain a higher mass of grains in the ear -1.01 g, which contributed to a higher yield. The processing plan of Vimpel and biological product a biological product of fungicidal activity Gliocladium is slightly lower than Vimpel + Alirin B + Alirin With, the number of productive stems before harvesting – 518 plants per m2 and weight of grains - 1.0 g. The study used field and laboratory methods. Cultivation of winter wheat using biological products is unprofitable in comparison with the control. Despite the increase in the yield and quality of grain, the cost of production is much higher than in the control sowing, which is due to the high cost of drugs and additional costs for their use