IMPROVING POTATO PRODUCTION TECHNOLOGY BY OPTIMISING THE USE OF ORGANOMINERAL GROWTH STIMULANTS IN THE FOREST-STEPPE ZONE OF WESTERN SIBERIA

Abstract

In the article experience of application of various organomineral growth stimulants on potatoes in the conditions of forest-steppe of Western Siberia is stated. In the course of work, the authors used new perspective preparations whose application has an essential influence on growth, development, the structure of a crop, and potato productivity. As a result of work, it has been established, that organomineral growth stimulants slightly influence the duration of the vegetation period of potatoes (1-3 days). The authors found that the infestation and spread of diseases in potato crops depended to a greater extent on the conditions of the year and the preparations used, and to a lesser extent on the variety. On average, the overall degree of plant infestation on the treated background was 2-8 % lower compared to the control. The use of organomineral growth regulators has a positive effect on potato yields. The Epin-Extra preparation was the most effective, application of which provided up to 8.3 t/ha yield increase at tubers treatment, and up to 7.2 t/ha at vegetative plants treatment. The use of organomineral growth regulators does not have a significant impact on quality indicators of potatoes, as the difference between the variants was not more than 1 %.