title: Role of biological preparations in increasing yield of pea (Pisum sativum L.) under conditions of steppe Сrimea
abstract: The purpose of the research was to study the efficiency of the microbial preparations of polyfunctional action as an element of the pea growing technology under conditions of the steppe Crimea. During the period of the highest activity of nodule formation (flowering phase), pea plants form organs of photosynthetic and symbiotic apparatus. Thus, we did all the necessary observations and measurements. The mass of the above-ground part of the pea plants varied from 14.9 to 27.8 g and exceeded the c