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Influence of different seeding dates on cotton yield
Bekzot IBRAGIMOV
1
, Odiljon IBRAGIMOV
2
Ministry of Agriculture of Uzbekistan
Fergana Polytechnic Institute
ARTICLE INFO
ABSTRACT
Article history:
Received March 2021
Received in revised form
20 March 2021
Accepted 15 April 2021
Available online
20 May 2021
In the conditions of Fergana region, Bukhara-8, Sultan and
S-8290 cotton varieties were planted in six terms, and 11-12,
12-13, 13-14 cotton branches were chemically ginned by hand.
The results of the variant with the highest yield Bukhara-8 cotton
variety sown on April 20-25 and pruning on 12-13 harvest
branches are given.
2181-1415/© 2021 in Science LLC.
This is an open access article under the Attribution 4.0 International
(CC BY 4.0) license (https://creativecommons.org/licenses/by/4.0/deed.ru)
Keywords:
conditions,
Fergana,
chemical,
yield,
chasing,
cotton,
drug,
yield,
growth.
Paxta hosili bo‘yicha turli xil urug‘lik shartlarining ta’siri
ANNOTATSIYA
Kalit so‘zlar:
shartlar,
Farg‘ona,
kimyoviy,
hosil,
chetan,
paxta,
dori,
hosil,
o‘sish.
Farg‘ona viloyatida paxtaning Buxoro-8, Sulton va
C-8290 navlari turli vaqtlarda (oltitadan) ekilgan va 11-12,
12-13, 13-14 simpodeal shoxlari hosil bo‘lganda paxta qo‘lda
chetan qilingan. Maqolada ta’kidlanishicha, eng yuqori hosil
20–25-aprel kunlari Buxoro-8 navlari paxtasini ekish paytida
olingan, ular chetan qilinganida, ularning simpodial shoxlari
12-13 ta hosil bo‘lgan.
1
Independent researcher, Ministry of Agriculture of Uzbekistan, Tashkent, Uzbekistan.
2
Professor, Fergana Polytechnic Institute. Fergana, Uzbekistan.
E-mail: domuladjanovi@mail.ru.
Жамият ва инновациялар – Общество и инновации – Society and innovations
Special Issue – 4 (2021) / ISSN 2181-1415
754
Влияние разных посевных сроков на урожайность
хлопчатника
АННОТАЦИЯ
Ключевые слова:
Условия,
Фергана,
химия,
урожай,
чеканка,
хлопок,
средство, у
рожай,
рост.
В условиях Ферганской области хлопчатник сортов
Бухара-8, Султан и С-8290 были посеяны в разные
сроки (шесть), а при образовании 11-12, 12-13,
13-14 симподиальных ветвей проводилась ручная чеканка
хлопчатника. В статье отмечается, что наибольшая
урожайность была получена при посеве хлопчатника сортов
Бухара-8 в сроки 20-25 апреля, при их чеканке образовались
12-13 их симподиальных ветвей.
It is known that if the basis of any crop is yield, then the main task of any agro-
technical measures will be to increase productivity. It should be noted that in the care of
cotton, it is possible to achieve higher yields than expected when planting manure, seedling
thickness and agronomic measures are carried out by man, if they are carried out in a
timely manner. When chasing agronomic measures are taken, the growth of cotton stops,
the nutrients from the soil are distributed to the yielding elements, and the yield increases
due to the increase in the weight of the pods and their retention in more cotton bushes.
In the conditions of Samarkand region, the research conducted by O.Sh. Yuzbashyan
F.Х. Xamraev [1-8].
When examining the effect of weeding on the bedding of a cotton plant, it was found
that the cause of plant bending is affected by the number of stalks along the plant and their
location in the plant.
It has been shown that pruning plants is 2-3 times less bent than non-pruning plants
and that pruning can be significantly reduced or eliminated by using agronomic techniques
that allow the main stem to be strong and the stems to be located below [4].
In this regard, studies have been conducted to study the effect of chasing agronomic
measures on cotton yield in late, middle and early cotton varieties depending on different
sowing periods.
The research was carried out using the manuals “Methods of field experiments with
cotton” (1981), “Methods of field experiments” (2007), adopted at UzPITI [1] were
analyzed [2].
According to the results of research conducted in the Fergana region for
2017–2019, the highest yield of Bukhara-8 cotton varieties was sown on April 20 for an
average of three years. The variant sown on April 25 and pruned on 12-13 harvest
branches yielded 35.5 ts/ha, respectively. The lowest yield of seeds in this cotton variety
was sown on April 10 and was obtained from the variant with 13-14 yielding branches,
which revealed a lower yield of 4.4-3.3 ts/ha compared to the previous variant.
In the Sultan cotton variety, the highest yields were obtained from the variants of
12-13 and 11-12 twigs sown on April 20-25, and the average yield over the years was
33.4-33.7 ts/ha. It should be noted that the highest yield in 2018 was obtained when the
seed was sown on April 20, while in 2019 the seed was obtained from the variant sown on
April 25. This can be explained by the fact that depending on the climatic conditions of the
year, high yields can be achieved by stratifying the sowing of seeds.
Жамият ва инновациялар – Общество и инновации – Society and innovations
Special Issue – 4 (2021) / ISSN 2181-1415
755
It was also noted that in this cotton variety, when the seeds were sown early, on
April 10, the yield was low in all three years of the experiment. In the variant sown on April
10, the yield decreased by 2.8-3.1 ts/ha compared to the variant sown on April 20 and
25 (Fig. 1).
Figure 1. Influence of chasing on cotton yield depending on sowing
dates in cotton varieties
Also, the highest yield of early maturing S-8290 cotton variety was sown on April
25-30, and the yield was 32.4-32.0 ts/ha, respectively, in the variant with pruning on
11-12 branches. The lowest yield of seeds in this cotton variety was sown on April 10, with
a yield of 28.9 ts/ha, respectively.
According to the data obtained, Bukhara-8 cotton variety was sown on April
20-25 and 12-13 stalks were sown, while SultanandS-8290 cotton stalks were sown on
April 25-30 and sown on 11-12 stalks taken from the options.
From the above data, it can be concluded that according to the morph biological
characteristics of cotton varieties, depending on the timing of sowing, in order to achieve
the maximum yield of the specified yield, due to the stratification of the threshing
operation.
REFERENCES:
1.
Methods of conducting field experiments, UzPITI-Tashkent, 2007. – P.145.
2.
Dospexov B. Methodology of field. M. 1979. – P. 268–285.
3.
Yuzbashyan O.Sh., Xamraev F.X. Advantages of chemical spinning and its effect on
cotton yield. 2001. p.172-173.
4.
Yasheva E., Gabdurashidov I. The effect of smoking on bedwetting // Journal of
Agriculture of Uzbekistan, 1987; №7 – P.13.
Ўртача ҳосил; Бухоро-8 ғўза нави 13-14
ҳосил шохи 10.апр; 32,2
Ўртача ҳосил; Бухоро-8 ғўза нави 13-14
ҳосил шохи 15.апр; 33,5
Ўртача ҳосил; Бухоро-8 ғўза нави 12-13
ҳосил шохи 20.апр; 36,6
Ўртача ҳосил; Бухоро-8 ғўза нави 12-13
ҳосил шохи 25.апр; 35,5
Ўртача ҳосил; Бухоро-8 ғўза нави 11-12
ҳосил шохи 30.апр; 34,7
Ўртача ҳосил; Бухоро-8 ғўза нави
кимёвий чилпиш 05.май; 33,4
Ўртача ҳосил; Султон ғўза нави 13-14
ҳосил шохи 10.апр; 30,6
Ўртача ҳосил; Султон ғўза нави 13-14
ҳосил шохи 15.апр; 32,1
Ўртача ҳосил; Султон ғўза нави 12-13
ҳосил шохи 20.апр; 33,4
Ўртача ҳосил; Султон ғўза нави 12-13
ҳосил шохи 25.апр; 33,7
Ўртача ҳосил; Султон ғўза нави 11-12
ҳосил шохи 30.апр; 32,3
Ўртача ҳосил; Султон ғўза нави
кимёвий чилпиш 05.май; 31,5
Ўртача ҳосил; С-8290 ғўза нави 13-14
ҳосил шохи 10.апр; 28,9
Ўртача ҳосил; С-8290 ғўза нави 13-14
ҳосил шохи 15.апр; 30,2
Ўртача ҳосил; С-8290 ғўза нави 12-13
ҳосил шохи 20.апр; 30,8
Ўртача ҳосил; С-8290 ғўза нави 12-13
ҳосил шохи 25.апр; 32,4
Ўртача ҳосил; С-8290 ғўза нави 11-12
ҳосил шохи 30.апр; 32,0
Ўртача ҳосил; С-8290 ғўза нави кимёвий
чилпиш 05.май; 31,1
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Special Issue – 4 (2021) / ISSN 2181-1415
756
5.
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archive / category / 877).
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in-t Donskoy GAU. - Novocherkassk: Lik, 2020. – P. 34–36. ISBN 978-5-907158-89-4.
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agro-industrial complex in the context of climate change: Materials of the international
scientific and practical conference. July 13-20, 2020 / Novocherk. inj.-melior. in-t Donskoy
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