Sx%=
2,50 %
2,35 %
2,46 %
ЭКФ
05
=
3,63 ts / ga
3,44 ts / ga
3,53 ts / ga
А for the factor
2,6 ts / ga
2,4 ts / ga
2,5 ts / ga
В for the factor
2,1 ts / ga
2,0 ts / ga
2,0 ts / ga
С for the factor
1,82 ts / ga
1,72 ts / ga
1,77 ts / ga
Reciprocal АВ
1,48 ts / ga
1,40 ts / ga
1,44 ts / ga
АС
1,28 ts / ga
1,21 ts / ga
1,25 ts / ga
ВС
1,05 ts / ga
0,99 ts / ga
1,02 ts / ga
Note: 1 *. "Makuz-3" type, 2 *. "Krupinka" navi
Increasing the rate of mineral fertilizers has a positive effect on grain yield,
this figure is 29.7 in the variant in which the fertilizer applied N
150
P
105
K
75
kg / ha
compared to the control-fertilizer variant sown in the early (1.10.) Period; 32.0 ts /
ha, 38.7 in the variant where N
180
P
126
K
90
kg / ha fertilizer was applied; 40.0 ts / ha
and 35.8 in the variant where N
210
P
l47
K
l05
kg / ha fertilizer was applied; An
additional grain yield of 46.3 ts / ha was obtained.
Sowing was carried out on 16 October in accordance with the norms and
varieties of mineral fertilizers compared to the control-fertilizer variant of grain
yield 36.8; 31.5 ts / ha, 44.1; 39.2 ts / ha and 41.8; 44.5 ts / ha of additional grain
yield was obtained, compared to the variants carried out during the sowing period
on November 1, 27.7; 27.1 ts / ha, 32.7; 32.3 ts / ha, 34.3; An additional grain yield
of 34.4 ts / ha was obtained.
In experiments, it was observed that the protein content of the grain
increases with the delay of sowing. Varieties "Makuz-3" and "Krupinka" have the
highest protein and gluten content in the grain, planted late - on November 1, and
in the variants applied mineral fertilizers N
210
P
147
K
105
kg per hectare, with a yield
of 15.8; 16.0 and 31.1; 31.5 percent.
Low levels of protein and gluten in the grain were observed in the control-
fertilizer variants, and at the time of sowing on October 1, these indicators were
12.3; 12.5%, gluten content 23.3; 23.6%, during the sowing period on October 16 -
13.0; 13.1 and 24.5; 24.7 per cent, while when planted on 1 November the protein
content was 1.4 compared to 1 October; 1.3 percent, and gluten 1.7; Found to be
1.8 percent higher. However, the amount of protein and gluten per hectare in the
variety "Krupinka" planted in the early (1.10.) And applied N
210
P
147
K
105
kg of
mineral fertilizers per hectare was 11.0; 20.9 ts / ha, in the variant “Makuz-3”
planted on 16 October and applied N
180
P
126
K
90
kg of mineral fertilizers per hectare,
10.3; 20.6 ts / ha.
Conclusion.
In the conditions of typical irrigated gray soils of Samarkand
region, based on the biological properties of varieties, obtaining high-quality grain
from durum wheat varieties, sowing of biological autumn variety "Krupinka" in
the first ten days of October and application of mineral fertilizers N
210
P
147
K
105
kg
per hectare, biological spring "Makuz-3" It is recommended to sow the variety in
the second decade of October and apply mineral fertilizers at the rate of
N
180
P
126
K
90
kg per hectare.
International Journal of Research
Volume IX, Issue VIII, August/2020
ISSN NO:2236-6124
Page No:80
References
1. Lavronov G.L. Wheat of Uzbekistan (Biology, agrotechnology, varieties
and agrotechnics). Uzbekistan. Tashkent. (1972). -349 b.
2. Methodological recommendations for assessing the quality of grain. -
Moscow. (1997). -48 s.
3. Musaev D., Yaxshilikov Yo., Yusupov Q. Food security in Uzbekistan. -
Tashkent. (2010). -73 b.
4. Oripov R., Xalilov N. Botany. - Tashkent. (2007). -384 b. 84.
5. Rakhimov, AR Influence of sowing dates and fertilizer rates on the
growth, development and productivity of durum wheat. International Scientific
Agricultural Journal, (2018). I (1), -C. 48-60.
6. Rakhimov, AR Influence of sowing dates and fertilizer rates on yield and
grain quality of intensive durum wheat varieties on irrigated lands. Abstract of
Ph.D. thesis (PhD) on agricultural sciences. Tashkent, (2019). -FROM.
7. Sulaymonov B.A., Boltaev B.S., Tillaev R.Sh., Abdualimov Sh.X. Basics of
growing winter wheat and cotton. - Tashkent. (2017). -B. 143.
International Journal of Research
Volume IX, Issue VIII, August/2020
ISSN NO:2236-6124
Page No:81