The modern technologies for production of high yield in vegetable crops in agroindustrial complexes provide the development of optimal conditions for plant nutrition including the application of microelements and biologically active substances (BAS). The study of productivity in tomato with application of microelements and biologically active substances were carried out in unstable moisturization in Stavropol region at the facilities of Educational and Experimental Station FSBEI HE Stavropol SAU in 2015-2016. The aim was to study productivity in tomato with application of microelements and biologically active substances on the basis of calculated norms of fertilizers. The objects of the study were tomato hybrid ‘Premium F1’, Agromix, and different BAS. Calculated dose of fertilizers on predicted tomato yield of 80 t/ha according to experimental protocol was N130Р150К170, where this norm was regarded as a control. Mineral fertilizers were added to basic fertilizer and included as extra feeding supplied through drip irrigation system. Agromix was applied as part of foliar dressing through drip irrigation, while BAS was used only as foliar dressing. The data on development of vegetative and generative plant organs, biochemical composition and yield characteristics of tomato fruit were analyzed. As a result of the study, it was shown that experimental tomato plants significantly differed from control ones not only by yield capacity and quality, but also the morphological characteristics. With application Agromix and BAS the area of leaf surface, stem diameter, degree of fruit formation, average fruit weight increased by 0.004-0.04 m2, 0.2-0.3 cm., 39%, and 8-16 g., per plant respectively. With application of N130Р150К170, Agromix, amino acids and epibrassinolide in different combinations, the dry matter content in fruit, sugar content, sugar and acid index and vitamin C content were increased as compared with control by 0.07-0.15%, 0.12-0.26%, 1.21.7 and 0.6-1.3 mg %, respectively, while nitrate content was decreased by 14.0-17.5 mg/kg. Application of microelements and BAS in the system of tomato plant nutrition increased tomato yield by 0.6-4.3 t/ha as compared with control variant. The highest yield was obtained in the experiment with combined application of N130Р150К170, Agromix, amino acids and epibrassinolide in plant feeding system. As a result of study, it was shown that highest productivity in tomato was obtained with combined feeding with microelements and BAS on the basis calculated norms of fertilizers.

Winter garlic as a source of vitally necessary macro and microelements is very important in human's diet. Therefore, correlation links among accumulation the basic chemical elements in bulbs of winter garlic were estimated. It was shown that positive reliable relationship (r=0.71-0.85) was discovered between average potassium accumulation and elements, such as magnesium, aluminum and boron, and also between magnesium and boron accumulation, and between aluminum and magnesium. The correlation analysis showed negative relationship between cadmium accumulation with copper (r=-0.71) and silicon (r=- 0.66) accumulations. There is no significant relationship between lead accumulation and other element accumulation. The significant positive correlation was revealed between accumulation of radionuclides 90Sr, 137Cs in garlic bulbs and accumulations of aluminum, calcium, boron and magnesium with coefficients 0.74 and 0.85; 0.70 and 0.78; 0.65 and 0.77; 0.57 and 0.72, respectively. It was shown that accessions more resistant to diseases accumulated less cadmium (r=-0.47), but more lead (r=0.49). Moreover, it was noticed that accessions with high accumulation of potassium had the low percent of well-wintered bulbs (r=-0.57), but more accumulation of Zn and Fe caused the improved hardiness (r=0.80, 0.75, respectively).

Relevance. As a result of long-term research, the staff of the Department of Agronomy, Plant Breeding and Seed Production of Omsk State Agrarian University created a new variety of green beans called Marusya, which was included in the State Register of Breeding Achievements in 2015. The competitiveness of the variety is ensured by stable yields, high palatability, and the ability of green beans to maintain their economic viability over the long period. The variety is resistant to drought and low temperatures.Material and methods. The research on the variety of the green beans was conducted following the methods of competitive variety trial from 2016 to 2020. The trials were conducted on the breeding crop rotation fields of the Educational and Experimental Farm of Omsk State Agrarian University, which is located in the southern forest-steppe of the Omsk Region (city of Omsk). The following zoned varieties were used as control samples: Zolushka (Federal Scientific Center of Vegetable Farming, Moscow) and the imported Polka variety (Poland).Results. The developed agroecological passport the Marusya variety, the use of which will allow to take into account the positive effects of the genotype-environment-variety interaction to the maximum extent. When selecting bean varieties suitable for cultivation for vegetable purposes in the conditions of the southern forest-steppe of Western Siberia in industrial production and the private sector, the Marusya variety makes it possible to obtain high-quality products and expand the range of legumes in the region.

In  2014-2016  the  assessment of  kidney bean  cultivars bred at Omsk State Agrarian University on yield capacity, quality, and biochemical  chemical compounds  in green beans, such as proteins, zinc, iodine, iron and sucrose was carried  out  in  the  south  forest-steppe  of  Western Siberia. The technological  parameters of  green  beans: the  shape  of  cross-section  area; pulpiness,  fibrous  or non-fibrous,  and bean thickness were estimated. Threeyear study showed that all tested cultivars bred at Omsk State  Agrarian  University  surpassed  control  cultivar  in yield capacity,  chemical composition  and technological parameters of green beans. The cultivar ‘Pamiyaty Rizhovoy’ gave a highest yield: 563.4 g/m2  in 2014; 622.8 g/m2 in 2015; and 620.4 g/m2  in 2016. It is worth noticing that this cultivar is also distinguished by contents of micro and macroelements: 21.20-28.68  mg/kg  of zinc; 0.012-0.018 mg/kg of iodine; and 1.8-3.2 mg/kg of iron. In the course of the study, it was noticed the dependence of  yield  capacity  on  hydrothermal  coefficient  (HC). In 2014-2015 the yield capacity was a lowest when the moisturization was insufficient at 0.7 HC. With increase of HC the yield was higher. With sufficient moisturization at 1.0 HC the highest yield of green beans was observed in 2016.  The estimation  of  kidney  bean  cultivars  bred  at Omsk State  Agrarian University showed  that  all beans were  distinguished  by  high  quality  parameters  in  the phase  of  technical  maturity,  such  as  pulpiness,  nonfibrous, thickness 0.5 to  1.0 cm, and green and yellow colors.  The  highest  protein  content  comparing  to  the control  cultivar  ‘Zolushka’  was  detected  in  ‘Marusya’ 23.60%  in  2014,  20.94%  in  2015;  and  ‘Zoloto  Sibiry’ 19.79%  in  2016.  The  observed  results  confirmed  that contents  change of  proteins,  sucrose, and  even micro and macroelements depended on the climatic conditions. In the hot and dry summer the protein content, depending on cultivar increased 18.31% to 23.60%, in 2014, and 17.81 to 20.94% in 2015. The same occurred  with zinc 19.63  to  28.68  mg/kg  in  2014,  and  20.14  to  27.54  to 2015;  and  iron  2.0  to  3.2  mg/kg  in  2014  and  1.6-1.9 mg/kg in 2015.

The evaluation of aflatunskiy onion for accumulation level of 25 elements was done. It was found that this crop is a source of potassium, calcium, and phosphorus. It is able to accumulate iodine, magnesium, zinc, ferric, silica. The obtained data shows the nutrition value of the genus of Allium L.