Figure 3. Influence of doses and timing of fertilizing with biopreparations on the
coefficient of water consumption of sunflower (average for 2016-2017), m
3
/t
Treatment of plants with bio substances during budding is much more appropriate
in comparison with the phase of formation of 3-4 pairs of leaves. Feeding in the
budding phase according to the values of the water consumption coefficient slightly
differs from their values in the processing of sowing twice in both phases of the
development of sunflower plants.
CONCLUSION
Thus, as it is determined by the results of our research, the level of crop yields is
significantly determined by the degree of soil fertility, namely it depends on its supply
with the organic matter and the content of basic nutrients. It grows under the influence
of fertilizers, the use of which on poorer soils contributes to a more significant increase
in yield compared to fertile ones. A prominent place should be given to scientifically
based alternation of crops in crop rotation, which improves the basic indicators of soil
fertility, enriching it with organic matter and reduces the cost of production.
1320
1080,1
1211,9
1007,9
911
895,22
946,7
873,4
874,1
912,3
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
1350
C
ontrol (w
ate
r tr
ea
tm
ent of plants)
F
re
sh e
ne
rgy (
fr
om 0,25 t
o 1,00
l/
ha
) on a
ve
ra
ge
R
etar
di
ne
0,25 l/
ha
R
etar
di
ne
with fr
esh e
ne
rgy
(a
ve
ra
ge
by dose
)
F
re
sh e
ne
rgy 0
,5
F
re
sh f
lor
ide
0,5
F
re
sh e
ne
rgy +
fr
esh flor
ide by 0,5
F
re
sh e
ne
rgy b
y 0,5 (
3-4 p
airs
lea
ves) +
fr
e
sh e
nergy 0
,5 (
flower
-
bud f
or
m
ati
on)
F
re
sh e
ne
rgy 0
,5 (
on pha
se
3-
4
pa
irs le
ave
s)
+
fr
esh flor
ide
(f
low
er-
bud f
orma
ti
on)
F
re
sh e
ne
rgy 0
,5 (
3-4 p
airs lea
ve
s)
+
f
re
sh e
ne
rgy 0
,25 +
fr
esh flor
ide
0,25 (
fl
ow
er-
bud f
orma
ti
on)
treatment on phase 3-4 pairs
leaves
treatment on phase
flower-bud formation
treatment in both phases
Use of moisture, m³/t
- 1257 -