INFLUENCE OF FERTILIZERS ON EFFICIENCY OF EARLY POTATOES IN THE CONDITIONS OF YAKUTIA

Abstract

To fully provide the population of the Republic of Sakha (Yakutia) with locally produced potatoes, it is necessary to have 150 thousand tons of tubers annually, taking into account the seed fund. The introduction of zonal technology provides a stable yield, but the actual yield in all categories of farms varies. The aim of the work was to develop an integrated fertilizer system for the cultivation of early potatoes in the conditions of permafrost soils in the Priviley zone of Yakutia. Testing was carried out according to the methodology of the All-Russian Research Institute of Potato and the methodology of the State Commission for the testing and protection of selection achievements. For research, potatoes were taken, zoned early in the Republic of Tulun. Nearby humus was used as
organic fertilizer, and azofoska mineral fertilizer. The use of mineral fertilizers is effective at a rate of 120 kg / ha, providing a yield increase of 4.0 t / ha; The application of humus (60 t / ha) is effective in combination with mineral fertilizers. Maximum yield - 16.2 t / ha, obtained by the joint application of humus (60 t / ha) and azofoska (120 kg / ha); The highest conditionally net income was also obtained by the joint introduction of humus and azofoska (120 kg / ha) - 251.8 thousand. rubles / ha.