The article presenta the results of studies on the formation of protein in barley grain, cultivated in the Republic of Tatarstan for 1993-2014 years. The varietal differences and the impact of daily mean air temperature on protein accumulation in barley grain were identified.
The article presents data on the effect of three-year usage of herbage of six varieties of alfalfa, which are well adapted to the conditions of the Republic of Tatarstan, to the structure of gray forest heavy-loamy soils. The studies, carried out in 2007-2010, on different mineral nutrition backgrounds, showed that the studied alfalfa varieties differ greatly in intensity of root mass increase and responsiveness to the application of mineral fertilizers, respectively, their habitat-forming properties also differ.
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