Effectiveness of organomineral fertilizers on yield and the possibility of obtaining environmentally friendly strawberry products

The report consists of 21 pages and has 10 tables.

The soil cover of the experimental plot is mainly contaminated with copper and zinc, at the end of the growing season under the influence of irrigation the content of these PM decreases by two to four times due to migration to deeper layers. The use of Greenodin gray reduces the content of Cu and Zn by 1.1-2.6 times compared to the recommended dose of N60P90K30. The study of the nutrient regime under different fertilization systems showed that the application of Greenodin gray enriches the root layer of the soil with easily accessible nutrients. This is mainly due to moisture conditions and the activity of microbiological processes in the soil. During our research, no pesticides were used in strawberry plantations.

In the plantations of the Rosana Kyivska variety with the maintenance of a moisture level of 70-80-70% HB on the background of Greenodin gray, 500 kg/ha at random + N45P30K15 with irrigation water, the maximum yield of strawberries (66.2 c/ha) was observed.

The application of Greenodin gray reclamation reduces the content of Cu and Zn in strawberries by 23-30%. For the variety Rosana Kyivska, leaves, roots and fruits contained Cu and Zn 1.12-3.54 times higher compared to the variety Olvia, although in all variants this content was below the MPC. The nitrate content in fruits was also below the permissible limit.

The highest profitability of 68% and a conditional net profit of 53.5 thousand UAH/ha was obtained when growing strawberries of the Rosana Kyivska variety at a moisture level of 70-80-70% HB and applying Greenodin gray, 500 kg/ha at random + N45P30K15 with irrigation water. In this variant, the lowest cost of berries was also observed – 1192 UAH/ton.