TECHNOLOGICAL ASPECTS OF TOMATO CULTIVATION IN THE VOLGA-DON INTERFLUVE

In the unfavorable climatic conditions of the Volga-Don interfluve area, the cultivation of tomato varieties of domestic production, which are able to compete with the corresponding hybrids and varieties of foreign selection, becomes a very topical issue. The conducted studies have established that the Volgogradets tomato variety at a constant moisture regime of 70 ... 70 ... 70% HB, in the control variant, is able to form a yield of 85.32 t/ha, and in the variant with the use of water-soluble fertilizers for a programmed yield of 100.00 t/ha - 92.28 t/ha. On the differentiated irrigation method, respectively, it varied from 90.24 to 99.36 t/ha. The Tanya hybrid was responsive to the applied agrotechnical method on drip irrigation. Its yield levels, respectively, fluctuated under the moderate irrigation regime of the variant without the use of fertilizers from 111.65 to 115.37 t/ha of the variant with the use of calculated doses of water-soluble fertilizers, and on the differentiated irrigation regime from 123.43 to 127.40 t/ha . Comparing the variants with the use of water-soluble fertilizers, we can conclude that the increase from the application of water-soluble fertilizers for the Volgogradets variety ranged from 4.92 to 7.08 t/ha, for the Tanya hybrid from 3.72 t/ha to 3.97 t / ha. Therefore, on the basis of the conducted studies, it can be concluded that with the use of regular irrigation and the use of water-soluble fertilizers by the method of fertigation on chestnut soils, they make it possible to obtain reliable increases, compared with the natural fertility option up to 26.11 t/ha, in comparison with the use of water-soluble fertilizers under planned yield of 100 t/ha to 37.16 t/ha.