Effectiveness of irrigation and mineral nutrition on the growth and development of chips potato variety in the south of Russia

This article analyzes the growth and development of the potato chips variety depending on the levels of pre-irrigation soil moisture and the dose of mineral nutrition by modern sprinkler equipment in the south of Russia. It has been proven that the combined use of the studied factors has a positive effect on the increase in the area of the leaf surface of early potatoes during the growing season. All this makes it possible to obtain the yield of potato chip variety "BP 808" from 15 to 25 t/ha.

Abstract Introduction. For the growth and development of potatoes in modern conditions, it is necessary to develop science-based technologies for the cultivation of this crop. In this regard, sprinkling is of particular interest, allowing to establish the optimal combination of irrigation regime and mineral nutrition of early potatoes to obtain productivity at the level of 15, 20, 25 t/ha.

Object. The object of research was the medium-early chip potato variety "BP 808".

Materials and methods. Annually for four years (2018-2021) at the pilot production site at the Limited Liability Company «AGROPROGRESS», according to the generally accepted recommendations of B.A. Dospekhov, V.N. Pleshakov conducted a two-factor field experiment of spring planting potatoes. Irrigation was carried out with a Valley sprinkler.

Results and conclusions. In the course of a three-year study, it was found that the growth and development of potato chips respond well to irrigation and mineral nutrition. At the same time, depending on the studied factors during the growing season, the maximum increase in the area of the leaf surface of early potatoes is formed in the variant with maintaining soil moisture at the level of 70-80% of FMC and applying a dose of N190P95K140 fertilizers. As a result, this option ensured the yield of potato chip variety "BP 808" at the level of 25.4 t/ha.

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