INFLUENCE OF AGROTECHNOLOGICAL TECHNIQUES ON ECONOMICALLY VALUABLE FEATURES OF A NEW PROMISING LINE OF SPRING BARLEY L-1800
In modern grain production, the correct cultivation technology, which includes not only productive varieties, but also agricultural techniques, is of great importance. Barley is an indispensable crop, the grain of which is widely used for both food and forage purposes. To obtain high yields of barley grain, it is necessary to develop technologies based on the use of agrotechnological techniques that allow the most complete use of the genetic potential of the crop. Other factors should also be taken into account: soil fertility, the climatic region of cultivation of the crop, the previous crop and the background of mineral nutrition. The article presents experimental data obtained as a result of studies on the influence of the level of mineral nutrition and the seeding rate on the main economic and valuable characteristics, as well as on the biochemical parameters of grain. The research was carried out on a new promising line of spring barley of the fodder breeding direction of the Leningrad Research Institute of Agricultural Research "Belogorka" L - 1800. A two-factor field experiment with a randomized placement of plots was laid out. The area of each plot is 10 m<sup>2</sup>. The influence of different levels of mineral nutrition and different seeding rates on plant productivity, morphological and qualitative indicators, as well as on the content of protein, crude fiber and fat in the grain was studied. The correlation between weather factors and technological indicators of spring barley grain is established. The relationship between the seeding rate and productivity is revealed. On the basis of the conducted experiments, it is possible to note a significant influence of the level of mineral nutrition on the main biological and economically valuable characteristics.