The sowing quality of seeds is determined by the conditioning properties, one of which is germination. The potential yield depends on the number of germinated seeds, therefore, increasing the conditional properties of seeds by pre-sowing treatment is an urgent problem in agriculture. The introduction of an integrated method of pre-sowing seed treatment allows to summarize the positive effect of the electrophysical effects of an electric field and a biological preparation. The article presents the results of the studies carried out to establish the optimal treatment regimes for the treatment of sunflower hybrids NK Neoma, LG 5500, ES Petunia seeds in an integrated way. The parameters of seed treatment were determined - electric field strength 8 kV/cm, exposure 60 seconds, semi-dry etching with Zerebra Agro growth regulator with an aqueous solution in a proportion of 10 ml of the preparation, 1000 ml of water. Laboratory germination in relation to control increased in hybrids NK Neoma and LG 5550 by 10%, in hybrid ES Petunia by 12%.

The experiment made it possible to develop new approaches to technological methods for increasing the yield of spring and winter durum wheat varieties against the background of creating prerequisites for preserving the natural fertility of the soil. Along with the released varieties, promising varieties of wheat were studied against the background of the use of new generation biofertilizers and developed doses of mineral nutrition for the planned yield levels. As, along with durum wheat varieties, which are accepted for zoning in the 8th region, modern varieties with high plasticity and adaptability to arid conditions were chosen. In addition, they are able to have a beneficial effect on the course of microbiological soil processes. The positive effect of the durum wheat root system with the symbiosis of biofertilizers was noted. The experiment was carried out in 2018…2022. for land use of the peasant farm "Eliseev A.N", which is located in the black soil zone of the southern Mikhailovsky district of the Volgograd region. Studied varieties of hard spring wheat: Krasnokutka 13, Donskaya elegy and varieties of winter durum wheat: Agat Donskoy and Aksinit with the use of biofertilizers and mineral nutrition for given yield levels (according to the method of Dospekhov B.A., 2011). A five-year experiment has shown that biofertilizers (Blago +, Gumi 20) may well constitute an alternative to traditional mineral nutrition to obtain a given level of yield of hard spring and winter wheat varieties. The use of biofertilizers (as a less expensive means of purchasing them) will increase the yield up to 3.05 t/ha for the Donskaya elegia variety, and up to 3.84 t/ha for winter durum wheat Aksinit, using biofertilizer Gumi 20. Maximum yield level was obtained on the variant of the complex application of Gumi 20+N221P87K135 on the Aksinit variety, which amounted to 6.62 t/ha (with a planned yield of 6.00 t/ha). On varieties of spring durum wheat, the highest yield was obtained in variety Donskaya elegia (5.32 t/ha) on the variant of application of Gumi 20+N221P87K135.