Dependence of Yield and Quality of Ripe Varieties of Potato on the Level of Mineral Nutrition in Conditions of North-West Russia

EasyChair Preprint 5082

Abstract

The main task of the research was to study the influence of different norms of mineral nutrition on such indicators as yield, marketability and quality of potato varieties of different ripening periods, taking into account the chang-ing environmental conditions of North-West Russia and the Republic of Karelia in particular. The introduction of various norms of mineral fertilizers signifi-cantly increased the yield of potato tubers on average by varieties by 26-35%. The results of evaluating the effectiveness of different norms of mineral fertiliz-ers when growing various varieties of potatoes (the average return of 1 kg of fertilizers per crop) showed that the best payback of mineral fertilizers in the NPK 1 rate was noted when they were applied under an early ripe potato variety ‘Udacha’ (an average of 34 kg). It has been established that an important role among biotic factors is played by the variety itself, the level of its genetic poten-tial and responsiveness to the conditions of cultivation. Weather conditions and the use of fertilizers affect not only the yield of potatoes, but also their quality indicators. The use of different norms of mineral fertilizers, as a factor in con-trolling the production process of potatoes to be expected had a significant ef-fect in all studied varieties on an increase in the average weight of tubers (in the Udacha variety by 66.7%, Red Scarlett -38.7%, Aurora - 24%), as well as on the quality of potato tubers, in terms of increasing the nitrogen content in them (by 8.8-15.4%), potassium (by 23.2-37.8%) and reducing starch content by 5 , 2-12.3%.

Keyphrases: mineral fertilizers, potatoes, quality of tubers, varieties, yield

@booklet{EasyChair:5082,
  author    = {Zinaida Kotova and Tatiana Danilova and Alexey Ivanov and Yuri Tyukalov},
  title     = {Dependence of Yield and Quality of Ripe Varieties of Potato on the Level of Mineral Nutrition in Conditions of North-West Russia},
  howpublished = {EasyChair Preprint 5082},
  year      = {EasyChair, 2021}}