Vachniy S. The Agrobiological basis of agrophytocenosis crops of optimization in Central Foreststeppe of Ukraine

The thesis summarizes theoretically grounded and given a new scientific problem solving that is manifested in the establishment of patterns of agricultural crops and agrophytocenosis design elements of the technology for its growing conditions of the Central Forest. The problem was solved by identifying the characteristics of growth, development and productivity of plants depending on the hydrothermal conditions of the vegetation period, the optimization of the varieties of soil tillage and fertilization levels in cropvariable rotation soil. This first comprehensive comparative assessment of crop production depending on the hydrothermal conditions of the vegetation period and varietal characteristics. Found that in cropvariable rotation with 60% saturation of the highest grain productivity of agrophytocenosis winter wheat and sugar beet was marked from the combined soil with double the level of fertilization of spring barley - by a long peeling Triple fertilization levels, red clover - with long surface soil fertilization with triple level. The optimum parameters of structure elements of crop and their relationship, allowing them to manage the production process.