Effect of planting density and calculation norms of mineral fertilizers on photosynthetic activity and yield formation of potato under condition of Southern Ural

E-mail: kartofel_chel@mail.ru

The effect of variety, planting density, and nutrition level on photosynthetic activity and yield of potatoes under condition of Southern Ural are studied. The optimal combination of farming practices is established, a quantitative evaluation of their actions and interactions is given.

Keywords: potato; variety; planting density; nutrition level; photosynthesis; factor contribution; productivity; seed fraction