Background: The combined use of green manure and legumes in binary legume-crop mixtures allows farmers to efficiently produce a sufficient amount of human food and animal feed. The purpose of this study is examine how biologization and the use of different soil cultivation techniques in legume cropping affects chernozem soil fertility and productivity of rotation crops.
Methods: The studies were conducted between 2017 and 2019 in 3 crop rotations. The first (control) crop rotation comprised of a clean fallow phase, winter wheat, barley and sunflower. The second crop rotation was that of green-manure fallow (clover), winter wheat, barley, sunflower and clover with oilseed radish as green manure. The third crop rotation included alfalfa, winter wheat combined with alfalfa, followed by barley, followed by sunflower and alfalfa with oilseed radish as green manure. Result: The three-year data indicated that there was an improvement in the physical properties of soil. The water resistance of soil aggregates increased by 9.7 per cent. There was a steady tendency towards an increase in detritus content (1.5 times), the amount of soil aggregates (one-third) and water resistance of the soil aggregates (9 per cent).
Awareness of the role of essential fatty acids in human health and disease prevention has been increasing among the population over the past decades. It is known that the positive correlation of essential fatty acid content with a decrease in cardiovascular morbidity and mortality, infant development, brain and vision functioning, arthritis, hypertension, diabetes mellitus, and neurological/neuropsychiatric disorders. Rich sources of essential fatty acids are fish, fish oil, and some vegetable oils. In this paper, the average content of linoleic and α-linolenic acids in oils (g/100 g of fat) and their ratio is presented. In Kazakhstan, among vegetable oils, sunflower oil is the most commonly consumed, in which the ratio ω-6 to ω-3 on average is about 220:1, which exceeds all recommended norms. Based on the examination of literary data on this topic, the desk-based research approach was used in this paper. According to the results, statistical data on the number of diseases of the cardiovascular system and diabetes mellitus are confirmed by studies on the positive relationship between PUWC and the development of these diseases, which indicates the need to conduct more studies on the ratio of ω-6 to ω-3 in the diets. The objective of this research is to encourage scientists to increase their basic grasp of biochemistry in order to improve health and prevent fatty acid illness.
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