The article deals with the issues of improving the grain quality of spring soft wheat using various varieties, fore crops and nitrogen fertilizers. It was found in experiments with spring soft wheat, carried out on gray forest heavy loamy soil, that the quality indicators of grain, dough and bakery assessments were most strongly influenced by varietal characteristics, weather conditions and placement according to optimal fore crops. Voronezhskaya 10 turned out to be a more productive variety, which formed grain that met the requirements of the standard for strong wheat, both in different years and according to different fore crops. The most valuable fore crops for obtaining high quality grain turned out to be complete fallow and clover. The best forecrop for Priokskaya was clover, the worst one was complete fallow. L-503 had low values of flour strength for clover and higher ones for winter crops, especially for the unfertilized variant. The effect of fertilizers on flour strength was mixed. In a case of Voronezhskaya 10, the flour strength decreased for pure fertilized fallow and fertilized winter crops. In a case of Priokskaya, a small positive effect was observed for all fertilized variants. When fertilized, L-503 reduced the flour strength for winter crops and rapeseed. The effect of fertilizers was mixed and small. In a case of Voronezhskaya 10, the overall bakery score from fertilizers decreased when placed on complete fallow, and increased for clover, rapeseed, and especially peas. In a case of Priokskaya, the positive effect of fertilizers was when placed after clover. It was revealed that the introduction of N60 for pre-sowing cultivation did not affect the technological qualities of the grain, because most of the nitrogen was used by plants for the formation of vegetative mass.

The article presents data on the study of the influence of an agricultural forecrop on the yield of winter wheat varieties Moskovskaya 40 and Nemchinovskaya 17. The experiments were carried out in Ryazan region, Russia, on dark gray forest soils of Malinki enterprise in Mikhailovsky district. The most effective forecrop in the experiment was vetch-oat mixture for variety Nemchinovskaya 17, with the following yield structure: grains per spike are 46.8 pieces, 1, 000 seeds weight is 50.4 grams, with productive tillering of 1.80. On average, for two years, the maximum yield was observed in the variant with variety Nemchinovskaya 17 according to forecrop of vetch-oat mixture for green fodder (44.4 dt/ha) and in the variant with variety Moskovskaya 40 a forecrop was pea-oat mixture for green fodder (41.1 dt/ha). In studies, the maximum profitability was noted on the variant with forecrop of vetch-oat mixture in variety Nemchinovskaya 17 (153.1 %). In general, the profitability of the options was 109.5-153.1 %, that is highly profitable for agricultural crops in the region.

The aim of the study was to study the effect of various doses of chicken manure (CP), zeolite (C), their mixtures and mineral fertilizers on the accumulation of microelements in the vegetative organs of spring rape plants at different stages of development. The results of the experiment showed that the introduction of the zeolite-containing rock of the Terbunskoye deposit promoted a decrease in such trace elements as Cu, Zn and Mn in the vegetative mass of rapeseed throughout the entire period of plant development. On experimental plots using organic-mineral mixtures (CP 2.5 t / ha + C 3 t / ha, CP 5 t / ha + C 3 t / ha, CP 10 t / ha + C 3 t / ha) the active adsorption of the zeolite-containing rock of the Terbunskoye deposit in relation to Zn was revealed, which contributed to a decrease in the element in the vegetative mass of rape in the variants of the experiment throughout the entire vegetation period of plants. Consequently, the studies carried out make it possible to recommend the cultivation of spring rapeseed using organic waste as fertilizers together with natural zeolite in the forest-steppe conditions CHR.

The article presents the results of the analysis of the cultivation of potato varieties for yield and quality data. The aim of the study was to determine the technological and consumer characteristics of various varieties of potato grown in the Ryazan region. During the experiments were used potato varieties of domestic and foreign selection, which were approved for zoning in the Ryazan region. Potato was cultivated at the experimental agrotechnology station of Ryazan State Agrotechnological University in 2019-2020. As a result of research, it was revealed that only the varieties "Gala", "Queen Anna" and "Kolobok" are classified as type C, which is suitable for cooking most culinary dishes, and accordingly they are universal. According to the quality indicators "taste and smell" and "darkening of the pulp", the tubers of the "Gala", "Queen Anna", "Red Scarlett" and "Kolobok" varieties showed themselves worthily. According to the number of tubers on the bush, varieties "Queen Anna" and "Kolobok" also performed best. The highest average mass of tubers was given by the varieties "Rodrigo" and "Kolobok".

Currently, with increasing anthropogenic loads near large industrial cities, soil pollution is observed by chemical elements amid a shortage of plant nutritional elements. The developed agrochemical and agroecological measures will ensure an increase in the reserves of humus and nutrients in the soil, eliminate the unfavorable reaction of the soil environment and, as a result, obtain the planned high yields of agricultural crops with the required quality.

The article proposes an analysis of long-term studies to identify the effectiveness of the gradient magnetic field (GMF) on the growth and yield properties of spring barley. The experiments were carried out in Ryazan region of the Russian Federation on dark gray forest soils. According to the results of the experiments, it was revealed that the use of GMF for seed treatment before sowing contributed to an increase in the intensity of growth processes. Treatment of barley seeds before sowing with a gradient magnetic field, compared with the control, contributed to better plant survival and an increase in density by 2.2 %. In the variant with the use of a magnetic field, a higher volume of the photosynthetic apparatus was noted in all stages of the crop development compared to the variant without pre-sowing treatment. It was higher by an average of 17.14 % in the tillering stage and by 6.98 % in the booting stage. In the variant with seed treatment, barley plants were distinguished by an increased degree of tillering. On average, the maximum productivity was in the variant with pre-sowing seed treatment with GMF, where the increase in yield to the control values was 4.6 dt/ha or 12.7 %.