Abstract
It was found that varieties Novosibirskaya 31 and Iren have an advantage in yield and grain quality over Omskaya 36 and Tyumenskaya 25 in terms of the predecessors of annual grasses and green manure fallow. For varieties Omskaya 36, Tyumenskaya 25, Iren, the background of mineral nutrition is optimal for obtaining a yield of 4 t/ha. A further increase in yield leads to a decrease in grain quality. The exception was the Novosibirskaya 31 variety, which retained the grain quality to a yield level close to 5 t/ha. The best sowing dates are the first and second.
Highlights
The Tyumen region mainly provides itself with wheat grain, but in the future, solving this problem, especially improving the quality of grain, may be problematic [1,2,3]
The fact is that during the period from 1937 to the present, the variety testing plots, using high doses of mineral fertilizers, performing qualitatively the elements of technology and other agricultural activities significantly increased the fertility of their fields [6,7,8]
For green manure fallow and annual grasses with different levels of mineral nutrition, the maximum duration of the growing season was in the varieties Novosibirskaya 31, Iren - 97-99 days, in Omskaya 36 and Tyumenskaya 25 - 104-106 days, which is quite acceptable for the northern forest-steppe of the Tyumen region
Summary
The Tyumen region mainly provides itself with wheat grain, but in the future, solving this problem, especially improving the quality of grain, may be problematic [1,2,3]. At the state variety plots for the grain predecessor, the yield of wheat varieties is 1.5-2 times higher than in production. The fact is that during the period from 1937 to the present, the variety testing plots, using high doses of mineral fertilizers, performing qualitatively the elements of technology and other agricultural activities significantly increased the fertility of their fields [6,7,8]. They keep all this even during the years of perestroika
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