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Relevance. Innovations in modern greenhouse complexes necessitate the creation of new technological cucumber hybrids for them, an important component of which is their comprehensive assessment in production conditions.Materials and methods. In 2023, experiments were conducted in the Krymsk (Krasnodar Territory) SC “Gavrish” with 9 new parthenocarpic hybrids of cucumber F1 smooth type in 2 repetitions of 10 plants each. Hybrids were grown in a winter greenhouse under light culture conditions in winter-spring and summer-autumn rotations. The technology of growing the crop is maintained in accordance with the requirements adopted in the V light zone. The assessment of economically valuable features was carried out according to generally accepted methods.Results. The early and total yields, marketability of the grown hybrids in two crop rotations, the degree of their resistance to real powdery mildew and adaptability of cultivation in crop rotations have been established. A comparative assessment of the potential of new hybrids with the generally accepted F1 analogue of Meva in the region has been carried out.Conclusions. The new parthenocarpic smooth-fruited cucumber hybrids of GC “Gavrish” F1 Metreng, Model 4560/19, Model 166/20 can act as an import substitution.

Garlic is quite common in all climatic zones of the Ukraine, but the increase in production of this valuable crop is largely extensive, due to the increased area. The phenotypic variability of morphometric features and the adaptive capacity of varieties and collections of garlic of winter of different ecological and geographical origin are analyzed. As a result of studying the variability of biometric indicators, it was founded that the greatest differences between varieties by indicators of leaf width – V=15.6 % (over the years 17.1–22.8 %), height of scape – V=28.2 % (over the years 17.4–29.3 %) and number of air bulbs in inflorescence – V=68.3 % (over the years 67.0–70.8 %). It is noted that using the modern intensive cultivars of Lubasha and Khando provides the formation of winter garlic yield at the level of 16.0–18.9 t/ha (+5.3–8.2 t/ha) and the use of promising variety samples No. 1, 5, 6, 13, 19 and No. 21 will provide yield at the level of 14.6–19.4 t/ha (+3.9–8.7 t/ha). It was found that the intensive cultivars of winter garlic of Lubasha (Total Adaptive Capacity=2.42), Dushes (Total Adaptive Capacity=4.63) and Khando (Total Adaptive Capacity=5.70) were the most adaptable. The most adaptive variety samples were No. 6 (Total Adaptive Capacity=6.29), No. 13 (Total Adaptive Capacity=4.12), No. 5 (Total Adaptive Capacity=3.22), and variety samples with high breeding value of the genotype should be used for further breeding and high phenotypic of the yield stability. The results obtained will allow qualitative selection and evaluation of initial forms for further breeding for adaptability and to create cultivars for specific soil and climatic conditions.

The winter rye, as well as to other crops of continuous sowing which effectively suppress weeds in organic farming possesses a special role. This culture is sensitive to the competition of weeds only at early stages of development. Starting from phase of shooting it acts as an important factor of counteraction of a weed invasion in the field. The problem of our researches consisted of studying the contamination degree of a winter rye crops which was grown up without use of fertilizers and means of plants protection, depending on main ways of tillage in a crop rotation. On the basis of 3-year-old observations it was established that at prolonged use of moldboardless main ways of tillage the contamination of crops at a seedling stage of a winter rye significantly grew – by 55.1 % at usual and for 36.7 % at small moldboardless tillage in comparison with moldboard tillage. At the same time, the air-dry mass of weeds was higher on 27.7 and 43.0 % concerning control, respectively. For harvesting period of culture on option of usual moldboardless tillage to depth 18–20 cm quantity of weeds for 46 %, and on option of small moldboardless – for 30.2 % was higher, than on plowing. The greatest contamination by weeds of crops for observation years is recorded at continuous moldboardless tillage on depth of 18–20 cm. The analysis of group structure showed significant dominance of the wintering and winter weeds over other groups irrespective of a main tillage way, though the increasing tendency of summer late and rootstock weeds part at usual moldboardless is traced. The winter rye successfully competed with weeds. Phytosanitary inspection of fields did not record oppression of culture before grain-harvesting works. On the best areas of soil fertility which were created at prolonged use of usual and small moldboardless main ways of tillage the productivity was higher on 1.7 and 3.9 c/hectare or 9.3 and 21.2 %, respectively in comparison with control. Perspectives of further researches are connected with specification of a winter rye productivity models which is grown up in the system of traditional and organic farming.

The article presents the results of studies about the effectiveness of spring barley crop cultivation with modern retriever preparations in the background of mineral fertilizers carried out in 2013–2017 on the southern bleak soils in the Ukrainian Steppe. That the options for plant nutrition significantly influenced the growth and development of spring barley varieties. So the plants were distinguished by their maximum height during the cultivation on the background of mineral fertilization and the extracorporeal fertilization of crops during the vegetation period with the Escort – bio. The processes of accumulation of crude top soil mass by spring barley plants in 2013–2017 depended on a number of factors, in particular from the weather and climatic conditions of the year, the background of nutrition, and they were the most intensive in the period of the phase of the plants’ output in the tube to the earing earing. For the cultivation of spring barley, variety Aeneas by the accumulation of raw biomass of plants in the years of research was a bit more intensive than the Adapt and Stalkerverieties. On average, over the years of research, in the control of raw biomass of plants variety Aeneas in the phase milk grains –1013 g/m2, which is 49–118 g/m2 or by 4,8–11,6 % which is more compared to the raw mass of plants of the Adapt and Stalkerverieties. The same situation was observed in the variants of the experiment. The largest amount of raw top soil mass was formed by plant Aeneas vаriety. The mineral fertilizer yield for pre-sowing cultivation in a dose of N30P30 and post-root crop fertilization with Escort-bio – 1632 g/m2 in the phase milk grains. The maximum yield of barley varieties in all years of research was formed for cultivating by the applying a moderate dose of mineral fertilizers and foliar application of crops with Organic D2 and Escort-bio. Thus, on average, over the years of research and in terms of the factor, the grain yield was 3,37–3,41 t/ha, which exceeded its level by fertilized control at 0,71–0,75 t/ha or 26,7–28,2 %, and in the background of making only mineral fertilizers – at 0,4 t/ha or 15,4 %. On average, duringthe years of research and by the factor of nutrition, the highest yield of the grain was formed by the plants of the Aeneas variety – 3,36 t/ha, which exceeded the Stalker variety by 0,21 t/ha or 6,3 %, and according to the Adapt variety – by 0,32 t/ha or 9,5 %.

Micefit is a product developed based on mycorrhizal fungi extracted from roots of swamp ledum. For ecological purposes the Micefit is used for final stage of cleaning of contaminated and polluted land at seed sowing and seedling plating. The effect of growth regulator Micefit on seeds of garden radish depending on different concentrations and exposures. The dependence of garden radish yield on time of treatment and concentration is shown.