Among cereals, winter wheat is one of the most valuable food crops [1, 2]. For the formation of high yields, it is important to obtain even and timely shoots. In most cases, there is a direct dependence between the fi eld germination of seeds and the yield of grain. The problem of overwintering plants has a special place in technological developments [4, 5, 7, 8].

A large role in increasing the yield and quality of wheat grain is given to the applied fertilizers [1–3, 5].

The purpose of the research is to improve the agrotechnology of winter wheat cultivation with the use of organo-mineral fertilizer, which provides an increase in crop yield.

The objective of the research is to evaluate field germination, overwintering, preservation, a yield of winter wheat when using organomineral fertilizer.

The research was carried out on the experimental fi eld of the Department of Agriculture, Soil Science, Agrochemistry and Land Cadastre of the Samara State Agrarian University, located in the central zone of the Samara Region or the southern part of the foreststeppe of the Volga Region. The soil of the fi eld is typical medium-humus medium-thick heavy loamy black soil, the reaction of the environment (pH) is close to neutral.

The following methods of tillage were used: ploughing at 20–22 cm, shallow tillage at 10–12 cm with a heavy disc harrow without autumn mechanical tillage.

Svetoch wheat was used for sowing. Elite seeds. Sowing was carried out on September 8 with a seeding rate of 5.0 million germinating seeds per 1 ha in 2018, repeated three times. Allocation of plots is systematic. Before that — dead fallow.

Harvesting was carried out by the TERRION breeding combine in the phase of full ripeness of grain. Before harvesting, sheaves were taken from the plots (area 0.25 m²).

Meteorological conditions 2018– 2019 were not entirely favourable for the cultivation of winter wheat. The average monthly air temperature in the autumn period of 2018 exceeded the average annual norm by 2.4 °C, and the amount of precipitation fell less than the average annual values by 68.1 mm. This negatively affected the reserves of productive moisture in the upper layers of the soil and the appearance of even shoots of winter wheat. They were sparse. The winter period in 2019 was also 3.2 °C warmer than usual, exceeding the average annual precipitation rate. Such weather conditions contributed to good overwintering of winter crops and significantly replenished the reserves of productive moisture in the soil in the spring. The summer period turned out to be dry, with 72 mm of precipitations against 130 mm according to the norm. June turned out to be especially dry, 26.9 % of the norm.