The article presents the results of the research conducted in 2016-2018 on the study of the economic balance of nitrogen depending on the type of crop rotation, its structure, as well as the method of using by-products (straw). It’s established that with the movement of straw from the field, the balance with the highest positive value was formed in grain-grass crop rotation and grain grass-growing crop rotation with two fields of clover at the break. The balance of nitrogen in field crop rotations with straw preserved for embedding was formed similarly to the balance with its movement, but with a more positive value.

The article states the results of the experimental research conducted in the Institute of Irrigated Agriculture of NAASU on the influence of basic tillage and fertilizing on the crop yield as well as economic and energetic effectiveness of cultivation technologies. Presented is economic and energetic evaluation of the methods and depth of basic tillage for rotation crops. Developed are economically and energetically substantiated systems of tillage, zero tillage and differential tillage for four course row rotations on irrigated lands of the south of Ukraine on the background of two systems of organic and mineral fertilizing.

The paper presents the results of the research on the efficiency of the application of the Complete Forte herbicide to winter wheat crops. It’s established that with its application in spring at the tillering stage weeds are destroyed by 96,8-98,8 %, their green weight is reduced by 98,0-99,3 % and rape drops by 96,5-98,2 and 98,4-99,4 %. It provides 8,2-8,6% yield increase of winter wheat grain.

The results of the study of treatment multiplicity, application doses and use of the Betanal MaxPro, MD in the mixture with the herbicide Goltix, CS are presented. It is shown that the herbicide Betanal MaxPro, MD can be recommended for the application to sugar beet in dose of 1.5 l/ha three times or 1.75 l/ha twice against annual dicotyledonous weeds. The use of the preparation provides biological efficiency at the standard level, however, it does not guarantee the necessary sowing purity. Three time application of the herbicide Betanal MaxPro, MD in dose of 1.25 l/ha in the mixture with the Goltix, SC in dose of 0.5-0.75 l/ha allows controlling effectively annual dicotyledonous weeds as well as increases the yield of root crops by 17.7-23.1%, sugar content by 0.3- 0.4% in comparison with the use of Betanal MaxPro, MD in its pure form. The increase in sugar output per hectare is 19.7-24.6%.

The paper demonstrates the results of the research into the efficiency of the herbicide Korum, VRK when it’s applied at the stage of 1-3 pair of pea leaves. Its rather high biological effectiveness is established when it is applied in a dose of 1,0-1,5 l/ha together with the surface active agent DASH (1,0 l/ha) what allows recommending it for application to pea against annual dicotyledonous and grass weeds.

The article states the results of the research on improvement of winter wheat cultivation technology. It’s established that disk and chisel plowing with nitrogen application of N_70+70+20 provides the greatest economic effect when winter wheat is cultivated on sod-podzolic sandy loam soil after pea according to the intensive technology, and only chisel plowing with the same nitrogen application when it is cultivated after rape and oats.

The paper deals with the results of three-year-old research on the influence of presowing seeds protection from pests and diseases on their germination, plat survival and maize yield. It’s determined that the insecticide protectants Poncho and Taboo, the fungicide protectant Maxim XL demonstrate higher biological and economic effectiveness than the insecticide protectant Leatrin and fungicide protectants Vershina and Vial-TT.

The article presents the results of the study of the influence of seeds incrustation with nitrogen-fixing and phosphate-mobilizing drugs on the plants parameters and winter rape yield. It’s established that treatment with microbial drugs contributes to the yield increase by 10,8-21,5 % and efficiency of this crop cultivation. Due to seeds incrustation the cost price of the obtained products is reduced from 31,5 to 26,9 rubles/dt (incrustation with the Gordebuck drug) or by 14,6 %.

The paper presents the results of the research on the influence of seeding rates and fractionated composition of seeds on the yield of spring triticale varieties Lotas and Uzor. It’s established that the highest yield of the Lotas variety is obtained on medium cultivated sod-podzolic light loamy soil with a seeding rate of 4 million seeds per hectare regardless their fractionated composition, and the highest yield of the Uzor variety is obtained with the same seeding rate and small, medium and large fractions.

The paper states the results of the research on the influence of different seeding rates on the yield of new highly intensive varieties of winter wheat. It’s established that with a seeding rate of 3,5 million seeds per hectare the conditions are the most optimal for the growth and development of the Elegy and Magda varieties of winter wheat. When the seeding rate of the Elegy variety is reduced from 4 to 3,5 million seeds per hectare the weight of 1000 seeds increases by 9,3 %, number of grains in ear increases by 12,2 % and productive ears are formed by15,4% more.

Presented is the influence of sowing time and density of planting on the plant height of maize hybrids of various groups of ripeness in irrigation conditions of the southern zone of Ukraine. It’s determined that over the period of the conducted research maize had the maximum indicators of plant height, on average, when it was planted in the third decade of April. Among the groups of ripeness, the plants of the mid-season hybrid Kakhovsky were the highest. Plant crowding from 70 to 90 thousand plants per hectare contributed to the height indicators increase.

Presented are the results of three-year-old research into the influence of sowing time of spring rape on its development and yield. It’s established that 21 days’ delay in sowing brings about the reduction of vegetation of the variety Germes and hybrids F₁ Almas and Rubin by 8-9 days. With late sowing the yield of spring rape is reduced by 8,6-10,2 dt/ha or 29,5-34,2 % in comparison with its maximum concerning the studied genotypes.

It is shown that ash does not have a significant effect on the accumulation of ¹³⁷Cs in vegetable products, while Kn ⁹⁰Sr transfer factor is reduced from 1,9 to 3,0 depending on the crop. Presented is the example of graphic visualization developed in accordance with the results of the research on the model of changing the density of soil contamination when ash with different specific activity of ¹³⁷Cs and ⁹⁰Sr is applied.

The article deals with the results of the research on evaluation of the efficiency of doses and time of nitrogen fertilizers application to winter rape of the variety Imperial. It’s established that application of 150 kg/ha of nitrogen in 2 stages (90 kg/ha – at the beginning of spring vegetation, 60 kg/ha – 2 weeks after the first top dressing) provides 41,8 dt/ha of oilseeds with profitability of 150,8% and cost price of 12,53$/dt.

The paper states the results of the research on the economic efficiency of oats straw use and increasing doses of nitrogen fertilizers in the process of winter wheat cultivation. It’s established that on average for two years the reduction of winter wheat yield under the influence of oats straw is registered only on a nitrogen free background. With the application of increasing doses of nitrogen the straw of a preceding crop increases the yield by 0.6-1,0 %. The highest net profit of winter wheat cultivation is made with the use of oats straw for fertilizers and application of nitrogen in a dose of N_70+70+20.

The paper presents the information on the relationship between oats grain yield and weather conditions during the vegetation period. Made is the assessment of the partial influence of the vegetation period conditions and level of intensification of the cultivation technology on the yield changes as well as interaction of these factors. Carried out is the economic evaluation of the efficiency of intensification of oats cultivation technology while producing elite seeds, first reproduction seeds, first class food grain, forage grain and grain for fodder.

The paper presents the results of the research on the influence of presowing soil compaction, harrowing of crops at the tillering stage, and combination of compaction and harrowing on the yield of common millet (Panicum Miliaceum). It’s established that the efficiency of the studied elements of the technology depends greatly on the conditions of the year and seeding rate. The maximum yield of millet was obtained in 2008 with the combined use of compaction and harrowing and seeding rate 5 mln/ha of seeds (46,1 dt/ha).

The paper demonstrates the results of the research on evaluation of the efficiency of different ways of oats protection from pests. It’s established that under the existing conditions the most effective is presowing treatment of oats seeds with the insecticide protectant Tabu, VSK (0,6 l/t).

The article presents the results of the study of the quality characteristics of grain: content of crude protein, crude gluten and vitreousness; and of flour: flour yield, whiteness, water absorption capacity (WAC), bread volume from 100 g flour and total baking assessment of the winter wheat variety Elegy at two levels of intensification of the cultivation technology. It is shown, that the total baking assessment for this variety doesn’t depend on the level of intensification, but it is largely determined by weather conditions of the year. Close and mid relations of quality characteristics in the ranges of trait variability are determined. According to the obtained results, it’s established that the flour of the variety Elegy in respect of the total baking rate (3.6-4.2 points) corresponds to the characteristics of medium-strength wheat suitable for the use as satisfactory or good filler.

The article demonstrates variation and close relation of genotypic and modification differences of plant morpho-physiological indicators to the effect of nitrogen fertilizer on the yield of spring soft wheat (triticum aestivum).

The article deals with the results of the research on identifying biochemical composition and content of metabolic energy in spring barley grain used for cattle, pig and poultry feed. Variability of metabolic energy and its close connection to the indicators of grain biochemical composition are shown.

Predictive models of metabolic energy content for cattle, sheep, pigs and poultry have been constructed in accordance with the spectrum of spring barley grain accessions in near infrared spectroscopy using the modified method of least squares and method of artificial neural network. The comparative evaluation of the obtained grading and results of its testing has been carried out. The conclusion on the possibility to use near infrared spectroscopy for identifying metabolic energy content in spring barley grain has been made.

Identified are the regularities of changes in the quantitative parameters of radionuclide accumulation in winter rape products depending on soil nutritional characteristics of different genesis. Established is the maximum density of radionuclide contamination of sod-podzolic sandy-loamy and degraded peat soils for seeding winter rape and obtaining products that meet regulatory requirements.

The paper analyses binary grass mixtures from alfalfa and festulolium. The results of the influence of seeding rates on the grass stands yield for 2016-2018 are stated. It’s established that while constructing binary agrophytocenoses with alfalfa and festulolium their productive process should be regulated with seeding rates. The validity value (R²=0,94-0,99) witnesses about a strong dependence of the yield value on the seeding rate of the components.

Presented are the results of the research on the yield of purple medic (Medicago sativa) of different geographical origin, namely, the right-bank Forest-Steppe and the southern Steppe of  Ukraine, when it is mown in the main vegetative stage - budding and beginning of flowering. It’sestablished that high productive capacity is best manifested when purple medic (Medicago sativa) is mown in the stage of the beginning of flowering in comparison with the budding stage, regardless of the area of origin. Under optimal temperature conditions and moisture supply, purple medic  (Medicago sativa) forms four cuttings, three of them in the stage of the beginning of flowering and one in the stage of planting, where the herbage yield of purple medic (Medicago sativa) of both varieties is 59,89-60,96 t/ ha, dry matter yield - 14,79-15,18 t/ha with the productivity index of 22.72–23.32 kg/ha/hour, seeding rate of 8 million/ha seeds and row spacing of 12.5 cm. The removal of grass stand during this period does not disturb the natural tillering rhythm.

The analysis of biochemical indicators of the quality of purple medic (Medicago sativa) shows higher protein content in plants with the seeding rate of 10,5 mln.psc/ha in comparison with 4,5 mln.psc/ha and the second cut in comparison with the first one. In the course of increasing dry matter in purple medic (Medicago sativa) plant fibre content grows intensively, protein and ash content is greatly reduced, fat and nitrogen free extract content changes slightly. It brings about the reduction of fodder nutritional value from 0,97 feed units per kilo with 16% content of dry matter to  0,73 feed units per kilo with 30% content of dry matter or from 10,0 MJ of metabolizable energy to8,8, MJ respectively.

The article deals with the results of the research on the environmental stability of 12 varieties and numbers of orchard grass (Dactylis glomerata L.). Numbers 1580 (15+) and 1504 (8+) have the highest integral estimation based on the sum of the estimations on yield and stability of I cut. These varieties combine high yield of dry matter (5,803-6,209 t/ha) with stability variance (-0,016-0,077). In terms of aftergrass yield and stability numbers 1504 (14+), 1514 (12+),1595 (11+) and 1580 (10+) have the highest integral estimation. According to the results of I cut and aftergrass late varieties Boikivchanka, Marichka and number 1516 have the lowest integral estimation. The use of the integral estimation allows identifying the numbers of orchard grass 1580, 1504, and 1514 which are the most valuable for breeding.

The article states the results of the research on Hungarian sainfoin (Onobrychis arenaria) in pure and mixed agrophytocenosis in the central part of Belarus. Carried out is the evaluation of the behavior of the main legume component in the mixture cultivated without herbicide.

Using growth uniformity index evaluation has been carried out and the varieties of perennial grasses with high adaptive capacity for haymaking grass mixtures have been identified. It’s established that grass stands on the basis of Festulolium with alfalfa or Trifolium repens (from 75-78 dt/ha to 93-109 dt/ha) have the highest yield with three and four cut use. The grass stands on the basis of brome and alfalfa are the most suitable for three cut use. Application of nitrogen fertilizers in a dose of 30 kg/ha and 60 kg/ha to every cut of legume grasses with the use of alfalfa provides the largest gross output of raw protein (18,5-23,5 dt/ha).

The article presents the results of the research on the influence of the cultivation technologies on the yield and economic effectiveness of oilseeds production of winter and spring rape. It’s established that winter and spring rape responds positively to the intensification elements of the cultivation technology what contributes to the yield growth by 55,6% and 36,5% and improvement of the effectiveness of oil crops cultivation. The biggest net profit (1751,6 and 1252,2 rubles/ha) and prof itability (127,8 and 103,0 %) are made when winter and spring rape is cultivated using the intensive technology. It is 1,95 and 1,53 times more and 47,7 and 26,1 % higher than when the crop is cultivated with the use of the resource saving technology.

The paper presents the results of three-year-old research on fibre flax cultivation on the soil with increased content of carbonates. The agrochemical characteristic of soil lots with exchangeable soil capacity in the range of 5,0-6,5 is shown. The yield and quality of seeds depending on рН_КС1 are stated. It’s established that on the soil with рН_КС1 6,3-6,5 there is seed shortfall of 49-52%, seeds infected with ozonium by 10-12%, bacteriosis by 5-8 %, reduced content of macro-and micro elements and protein accumulation in seeds.

The article states the material on the research into tomato yield depending on the planting system and fertilizing in the south Steppe of Ukraine. It’s established that the yield of fruits of the Legin variety is 75.04 t / ha, the Yubileyny variety - 81.38 t / ha. The studied planting systems show that the yield of fruits with the system of 100+50 cm exceeds the scheme of 150 cm by 16.3%. The maximum yield of tomato fruits is obtained with the integrated use of fertilizers and is equal to 98.7 t/ha. The average yield for 2016-2018 was 115,13 kg/ha. For the variety Legin the yield of seeds is 117,62 kg/ha, for the variety Yubileyny – 112,63 kg/ha. The yield of seeds with the planting system of 100+50 cm is 0.6 % more than with the system of 150 cm. The correlation between the fruits yield and seeds yield of tomato is 0,95 (r=0.95).

In the North-Eastern part of the Republic of Belarus 256 accessions of spring durum wheat of different ecological and geographical origin have been studied. The economic characters have been analyzed: plant height, elements of yield and the main indicators of grain quality. The distinction of the accessions in terms of the area of origin has been established. The forms suitable for the use in breeding for yield and grain quality have been identified. In breeding for resistance to lodging it is advisable to use dwarf accessions as initial forms – Icaro, Valaniene, Gaza W-277, Esquilache. In breeding for yield, preference should be given to the original forms with high adaptive capacity and plant performance – Тоlesa, Valenta, Кatyusha, Dunyasha, Verona (Belarus); T. durum 596 (Georgia), LD 12 (USA), Damsinskaya 40 (Kazakhstan); Valentina, Duet of Chernozemya 2, Steppe 3 (Russia) and Bukuriya (Ukraine). Taking into account stable negative correlation between the yield and grain quality, it is advisable to apply step or saturating crosses in durum wheat breeding, using the forms with a high grain quality as a parent component. The varieties Tolesa, Valenta, Dunyasha, Kharkovskaya 39, Damsinskaya 90 and Damsinskaya 8 are the sources of high weight of 1000 grains, the varieties Kharkovskaya 41 and Aktyubinskaya-74 are the sources of vitreousness (above 92 %). The varieties RL 1317, Randur, Oued Kebir, Melange, Peliss Selection No 14, Singh, T. durum 605 and Menceki are distinguished in terms of protein content (above 18.5 %) and gluten content (47 % or more) in the conditions of Belarus. The variety Dunyasha is the best among national varieties.

The paper reflects the results of the study of the collection material of soft winter wheat of different ecological and geographical origin. Identified are the sources of economic characters which are of interest for breeding in the conditions of the Republic of Belarus.

The paper states the results of the research on the collection accessions of winter diploid and tetraploid rye for 2016-2018. The varieties – sources of different economic characters for winter rye breeding are identified.

The paper substantiates the significance of the conducted research in the field of grain loss reduction during the period of blue lupine (Lupinus angustifolius L.) ripening using the accessions with the gene of indehiscent pod. Presented are the results of the research on the initial material of blue lupine of different origin with the use of DNA-markers connected with the genes controlling phenotypic exhibition of this character. Identified are the accessions with indehiscent pods that are of interest to breeding on the territory of the Republic of Belarus.

The article presents the results of the research on the buckwheat collection accessions of different ecological and geographical origin in field conditions in order to identify the sources of economic characters for their further use in breeding. Identified are the accessions which can be used in breeding as sources of early ripeness, short stem, high yield and grain size.

The article states and analyzes the results of three-year-old research on pea varieties in competitive variety testing. It’s established that the accessions E-2815 (Victor) and E-2738 submitted to the State Variety Testing are distinguished in terms of a complex of economic and biological characters.

The sources of economically valuable characters have been identified on the basis of the conducted research on the evaluation of winter rape initial material of different ecological and geographical origin. The assessment of the genotype and vegetation conditions influence on plant performance and its basic elements have been carried in accordance with the results of the two way analysis of variance. Correlation dependence between them have been identified what enables to make a selection in breeding.

The paper presents the results of three year old research on new spring rape varieties in the environmental testing. The varieties Fenix and Titan-17 have the highest indicators of yield stability (186,8 – for Fenix and 175,4 – for Titan) and the highest stability index (5,1 – for Fenix and 5,2 – for Titan). New genotypes have been evaluated in respect of a complex of valuable characters, including quantitative indicators of oil seeds. A positive middle correlation between the productivity and weight of 1000 seeds (r = 0,52) has been identified.

The conducted research shows that rice resistance to lodging is mostly connected with the length of the second internode that is why the selection of plants on the character “plant height” for the increase of lodging resistance is effective. The specificity of genetic control of the lodging resistance character of the rice hybrid material is investigated. Dominant factors of lodging resistance of the varieties Debut, Antei and UIR 3472, their presence in the progeny and positive transgression in the hybrids are established.

The article deals with the results of the research on the use of short stem donors in breeding of winter diploid rye for resistance to lodging. A new prospective breeding material characterized by a number of economic characters is obtained. Seven dominant short stemmed varieties – populations of winter diploid rye are registered on the National List of the Republic of Belarus.

Genetic distances Ney-Lee and Mahalanobis calculated according to qualitative phenotypic characters and method of storage proteins electrophoresis provide maize lines clustering in heterotic groups with high resolution. The correlation coefficients between Jaccard similarity coefficient of zein components and genetic distances, calculated according to the phenotype, is - 0,71(distance Ney-Lee) and -0,83(Mahalanobis distance). High correlations indicate the fact that electrophoresis of storage proteins and genetic distances Ney-Lee and Mahalanobis can be used for identification and classification of self-pollinated lines of maize in breeding programs.

The paper demonstrates the results of the study of the influence of pollination techniques on the formation and yield of the ear of 17 winter triticale varieties in agro-climatic conditions of the central region of Belarus. It’s established that forced self-pollination of triticale is accompanied by inbreeding depression, the intensity of which is determined by variety specificity. Susceptibility of the triticale accessions to foreign pollen with self-pollination of sterile flowers reflects a low rate of progamic incompatibility. Correlation analysis of the relationship between ear formation, grain content and weight identifies the most significant dependence between natural pollination and selfpollination what witnesses a high degree of their identity.

The paper presents the results of the analysis of morpho-physiological and physical-chemical indicators of 17 varieties and prospective variety accessions of winter triticale for 2017-2018. The assessment of genotypic variance of quantitative characters has identified a great differentiation of accessions in respect of the period of ear formation, type of tuft, awn length, grain form and surface, and crude gluten content. The rate of coherence of indicators and their contribution to the formation of winter triticale yield have been evaluated with the use of correlation analysis.

Studied is the constitutive level of PR-protein genes expression of winter wheat selection varieties with different resistance to pathogens: thaumatin-like protein (TLP), class III peroxidase (TaPero), chitinase (Chitin) and β-1,3-glucanase (Glucan). Identified is the variety CW with a high resistance to powdery mildew and speckled leaf blotch, what is caused by high expression levels of TLP, Glucan, TaPero and Chitin genes. The variety CW is also characterized by high yield and has been submitted to the State Variety Trial of Belarus as a new variety called NPC 5.

The article deals with the results of the study of 39 winter triticale collection varieties of different ecological and geographical origin in respect of the main economic characters in order to identify the criteria for sources selection in high yield breeding with the use of data cluster analysis by Warda method and Statistica 10 program.

The paper deals with the results of transgressive variation in terms of a plant height and yield structure (weight of 1000 grains, number of grains per panicle, productive tilling capacity) with the use of a diallel crossing method. The most prospective varieties for breeding are identified.

The paper deals with the results of the conducted phenotypic evaluation of pentosans content in winter rye grains. According to the findings genotypes-sources of valuable alleles with the high and low content of water soluble pentosans are identified. High and low pentosan synthetic populations with different manifestation of heterotic effect of the main economic characters of the quality of carbonhydrate-amylase and grain protein complexes are formed.

The paper reflects the results of the assessment of the breeding material (self-pollinated lines of maize from the working collection of the maize breeding laboratory of the Polessye Institute of Plant Breeding) in terms of the intensity of water yielding capacity during the preharvest period. As a result of the research the initial material has been classified according to the intensity of water yielding capacity, correlation of the intensity of water yielding capacity with quantitative morpho-biological characters has been established, sources of the high intensity of water yielding capacity have been identified. The findings are of great importance for the increase of the efficiency of maize breeding

The paper states the results of the research of 38 lines of maize on seed storage proteins with the use of electrophoretic separation of zein components. On the basis of the data on electrophoretic mobility of zein components of inbred lines 2-3 zein components occurring only in the representatives of a certain heterotic group are identified. It’s established, that components 23 and 33 occur in the lines of the Ottawa Flint group, combination 28-42 is typical of the lines of the Lacaune group, 32-45 - of Lizargarate, 25-34-45-Co 72-75, 26-31-41-Co 125 , 29-34 - CG 12, 29-33-37 - Reid, 35-40 - Lancaster, 36-41-69 – Iodent.

The article reflects the results of the assessment of maize breeding material on field resistance to European corn borer (Pyrausta Nubilalis) on the natural background of colonization (maize monoculture). Self-pollinated lines of maize are grouped according to the number of indicators (colonization, antibiotic resistance, yield reduction and others) characterizing field resistance of an accession to European corn borer (Pyrausta Nubilalis). The degree of the accessions resistance to European corn borer (Pyrausta Nubilalis ) depending on the group of grain ripeness and texture is determined. The sources of resistance to the pest are identified.

The article states the regularities of “flower color” character inheritance and dynamics of homozygosis of genotypes of intraspecies ecological and geographical and kindred hybrids of blue lupine F₂ – F₈. It is shown that ecological and geographical hybridization diverts functional dyploidy of natural tetraploid of blue lupine to the side typical of experimental auto-and allotetraploids. The directions of the use of the stated regularities in breeding are discussed.

The paper presents the results of the study of nine breeding accessions of Festuca trachyphylla on the basis of the main characters: duration of the vegetation period, plant height, leaf length, number of generative shoots, inflorescence length, seed weight per plant, 1000 seed weight, number of seeds per inflorescence. A significant positive correlation coefficient between the “seed weight per plant - inflorescence length” and “seed weight per plant - number of seeds per inflorescence” (r = 0,55; 0,88)is identified.

The paper presents the results of the research into the influence of plants treatment with microfertilizers on the yield and output of seeds of winter triticale varieties in irrigation conditions. It’s established that treatment of the mother plant of new promising varieties of the winter triticale Bogodarskoye, Buket, Raritet with the microfertilizers Gumifild (50 g/ha), Nanomix (2 l/ha) and Nanovit micro (2 l/ha) increases the yield and output of seeds. The maximum yield of seeds and output of conditioned material (5.74 t / ha and 70.49%) is obtained on the variety of winter triticale Bogodarskoye using the Nanovit micro. The correlation between the yield and output of seeds (r=0,96-0,98) is also established.

Presented are the results of the research on the basic elements of the direct planting technology for red beet seed production with drip irrigation of the south of Ukraine. It’s established that with planting for the first decade of September the density of plants in spring is 1,3 times more than with planting for the second decade. Covering with straw and nonwoven material before winter increases the number of plants by 180,2 % and 170,9 % respectively. The yield of seeds planted for the first decade of September is 189,6% higher. When plants are covered with straw their yield is 0,72 t/ha and when they are covered with agrotextile their yield is 0,73 t/ha what is two times more than without covering. The influence of the elements of the technology on the qualities of seeds is not significant.