FEATURES OF AGROTECHNOLOGICAL TECHNIQUES CULTIVATION OF FORAGE CROPS ON PERMAFROST SOIL THE REPUBLIC OF SAKHA (YAKUTIA)

Abstract

The article presents the results of research on agrotechnological methods of cultivation of annual fodder crops on permafrost soil. Research on the technology of cultivation of annual fodder crops was carried out in 2017-2023 on the basis of the laboratory of feed production of the Yakut Research Institute of Agriculture named after M.G. Safronov on the second above-floodplain terrace of the Lena River valley in the village of Nemyugyuntsy of the Khangalassky ulus of the Republic of Sakha (Yakutia). Sunflower has proved to be a new and promising crop for harvesting juicy forages in Yakutia. The soil of the site is permafrost floodplain-sod loamy. Sunflower variants were tested in a mixture with corn, spring vetch, peas, and Sudanese grass. In the specific conditions of the permafrost floodplain, the sunflower harvest in all studied variants significantly exceeded the control (net crops) and turned out to be the largest in crops with corn, reaching an average of 42.7 ± 1.1 t / ha with limits of 35.9 - 52.4 t and a low amount of variation.