STUDY OF PRODUCTIVITY OF POLY-SPECIES AGROPHYTOCENOSES IN THE CONDITIONS OF NORTHERN KAZAKHSTAN

Abstract

This article discusses the data obtained during the study of the productivity of polyvid agrophytocenoses in the conditions of Northern Kazakhstan. The methodology of conducting and the results of field experiments on the use of cereal-legume grass mixtures selected according to the soil and climatic conditions of this region to increase the productivity of pastures are described. The meteorological conditions in this region for 2021 are given. As a result of the conducted research, agrochemical assessments of the soil were carried out, taking into account the density of perennial grasses; the height of the cereal-legume grass mixture; the productivity of the cereal-legume grass mixture was determined by mowing and weighing with analysis by the species composition of the grass mixture and drying the sheaves to an air-dry state. The photosynthetic activity of plants was determined by measuring the chlorophyll content in plants by the express method: the N-tester SPAD 502 Plus Chlorophyll Meter, designed to determine the level of nitrogen nutrition of plants by the chlorophyll content in leaves in the field.