title: The influence of micro fertilizers on the photosynthetic activity of safflower in the Lower Volga region
abstract: Increasing the gross harvest of agricultural products to solve the food problem in the world is associated with studies of biological processes in plants that arise as a result of the impact of factors intensifying agricultural production. Research objective: to evaluate the indicators of photosynthetic activity of safflower on its productivity depending on the use of micronutrient fertilizers. Studies on the effect of micronutrient fertilizers on the photosynthetic activity and productivity of 
journal: Mezhdunarodnyi sel skokhozyaistvennyi zhurnal