climate changes, the limiting factor in the formation of their high productivity is the
provision of plants with moisture [8].
Figure 1. The yield of winter crops depending on the predecessor
and feed background
Technological methods of growing crops should be directed to the maximum
possible accumulation of moisture in the soil and its use by plants for the formation of
the crop. The accumulated moisture in the soil for the period of sowing of any crop and
precipitation of the vegetation period are used much more productively on fertile soils,
for the introduction of organic and mineral fertilizers, that is, for the optimization of
plant nutrition.
On depleted soils, among the limiting factors, the second place after moisture is
taken by the provision of plants with accessible nutrients and, above all, nitrogen.
However, as a result of insufficient amount of fertilizers (especially organic ones) and
deterioration of soil fertility there is a need to develop new approaches to their nutrition
[9,10].
One of the ways of optimizing plant nutrition for these conditions should become
more widely applied to the background of moderate doses of mineral fertilizers,
modern growth-regulating substances for the treatment of seeds before sowing and
0
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
4,18
4,3
3,4
3,28
3,79
3,01
3,9
3,313,053,32
3,08
3,98
3,413,173,41
5,514,94
4,42
4,03
4,73
4,44
4,89
4,14
3,83
4,32
4,47
4,92
4,18
3,86
4,39
by background of the predecessor
by background of the application mineral fertilizers
Notes: 1 – winter wheat (2008-2006 and 2015);
2 – barley (2014-2016);
3 – triticale (2014-2016);
4 – rye (2014-2016);
5 – average for all grains
Black fallow land
Winter wheat
Corn for silage
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