TOXIC AND ECOLOGICAL ASSESSMENT OF AGRICULTURAL PRODUCTS OF AGROCENOZES OF THE RIGHT BANK FOREST STEPPE DEPENDING ON THE INTENSITY OF AGRICULTURAL CHEMISTRY
Creators: name: Yakovets, L.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: agrocenosis
agricultural products
chemicalization
agriculture
heavy metals
corn
accumulation coefficient
winter wheat
spring barley.

description: The article presents studies on the toxic-ecological assessment of agricultural products of agrocenoses of the Right-Bank Forest-steppe, depending on the intensity of chemicalization of agriculture. The aim of the research was to conduct a toxic-ecological assessment of agricultural products of agrocenoses and substantiate the principles of regulation of the toxic-ecological safety of the main products of agrocenoses at different levels of chemicalization of agriculture in the conditions of the Right-Bank Forest-Steppe. The studies were carried out during 2019-2020. With grain and seeds that are grown in the conditions of intensive and resource-saving agriculture of the Right-Bank Forest-Steppe using laboratory tests in certified laboratories that have a certificate for conducting relevant research (Scientific and Measuring Agrochemical Laboratory of Vinnytsia National Agrarian University and the laboratory of the testing center of the Vinnytsia branch of the state institution soils of Ukraine). According to the results of the studies, it was found that under conditions of intensive chemicalization of agriculture, more zinc accumulates in winter wheat grain; in the seeds of winter rape lead and copper in the wet grain of corn all lead, but less cadmium, copper and zinc. In the dried grain of corn, lead accumulates less, copper in sunflower seeds − cadmium. The research results showed that a low accumulation rate of lead and cadmium in the conditions of resource-saving chemicalization of agriculture was found in the grain of spring barley − 40.0 and 0.3, respectively; copper − in winter wheat grain − 4.1; zinc − in grain of spring barley − 3.6 The lowest coefficient of lead accumulation under conditions of intensive chemicalization of agriculture was found in sunflower seeds − 22.5; cadmium, copper and zinc − in corn grain − 1.0, 9.5 and 10.6, respectively. The article presents data on heavy metal contamination of winter wheat grain grown in intensive agriculture. The decrease of heavy metals content during grinding of winter wheat grain into different fractions of flour is studied: high quality, first grade, second grade and bran. It has been found that grinding winter wheat grain to different fractions can significantly reduce Pb content in high quality flour by 71,8%, first grade by 51,5%, second by 47,6%, but increase their content in bran by 61, 6%, compared to the Pb content of the grain; the content of Cd in high-quality flour decreases by 75,0%, the first grade by 50.0%, the second by 25,0%, but increases in bran by 60.0%, compared to the content of Cd in the grain; Cu content in high-quality flour is 72,0% lower, first-class – 52,0%, second 47.4%, but higher in bran by 50,7%, compared to Cu content in grain; Zn content in high quality flour decreased by 95,9%, first grade by 54.6%, second by 51,7%, but at the same time increased in bran by 68,2%, compared to Zn content in winter wheat.