Results and their discussion. Conditions of moisture supply in plowing process. Considering
that moisture is the limiting factor for the cultivation of agricultural crops in the conditions of our
region, soil samples were selected to study the dynamics of the reserve of productive moisture
depending on the ongoing agrotechnical measures. Before starting the experiment in the spring of
2014, the background content of productive moisture in the experimental area was 76.4 mm (Table 1).
Table 1 – Dynamics of productive moisture accumulation in the soil depending on various
technologies of steam preparation for 2014-2016
Predecessor
Years of research
2014
2015
2016
at the
beginning
-
of
steam
at the
end-
of
steam at
the
beginning
-
of
steam
atthe
endof
research
institute
steam at
the
beginning
of steam at
the end-
of
steam
atthe
endof
research
institute
1. Clean ploughing
process
76.4
105.6
68.4
109.5
72.7
112.7
2. Zero ploughing
process
76.4
110.1
68.4
114.6
72.7
113.4
3. Minimum ploughing
process
76.4
113.8
68.4
113.7
72.7
119.5
4. Occupied ploughing
process
76.4
74.5
68.4
74.6
72.7
74.7
5. Legume culture
76.4
72.3
68.4
52.3
72.7
29.5
Due to the agrotechnical measures carried out, as well as atmospheric precipitation in the
months of June-August (185.7 mm at the norm of 95.4 mm), in the fall, by the end of the 2014 fallow
period, the accumulation of productive moisture occurred in the pure, zero and minimal vapor test
variants and amounted to 105.6, 110.1 and 113.8 mm, respectively. In the experimental variants where
plants (rapeseed, peas) of the 2014 crop were vegetated, the content of productive moisture by the end
of the growing season was 74.5 and 72.3 mm, respectively. Heavy atmospheric precipitation during
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