INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 1688
UO‘K-631.6.633.5
THE EFFECT OF VARIOUS IRRIGATION REGIMES, AS WELL AS STIMULANTS
ON THE YIELD OF FINE-FIBER COTTON
B.E.Qulmurotov
PhD student at the PSUEIT base, Associate Professor at the
Termez State University of Engineering and Agrotechnology
https://orcid.org/0009-0001-3275-9324
B.M.Makhmadiyorov, S.G'.Johanov, Sh.Sh. Qo‘ziyev
Termez State University of engineering and agrotechnologies
Abstract:
In the conducted research, the effect of the use of stimulators on the cotton yield of
SP 1607 cotton variety with different irrigation.
Key words:
stimulant, cotton, irrigation, cotton yield.
Introduction
Today, in a number of developed countries in the context of global climate
change, physiologically active substances, i.e. stimulants, are widely used in agricultural crops.
At the same time, plant phytohormones have a positive effect on the production of high and
high-quality yields, ensuring healthy germination, rapid growth and development of seedlings,
as well as controlling physiological processes, improving the activity of enzymes, amino acids,
nucleic acids, protein biosynthesis, accumulation and distribution of nutrients, photosynthesis,
respiration and metabolism. It is also important to develop optimal timing and criteria for the
use of stimulants while increasing the resistance of fine-fiber cotton to environmental
influences and obtaining high and high-quality yields.
Literature Review:According to Sh. Abdualimov, Sh. Karimov, and M. Ziyatov [2], the use of
biostimulants such as Uzgumi at 0.4 L/ha, Baykal at 3.5 L/ha, retardants such as Sojean at 90–
100 g/ha, and defoliants such as Dalrost at 2.5 L/ha, Uzprep at 2.0 L/ha, and Fon at 2.0 L/ha in
late cotton fields accelerates the growth and development of cotton by 10–15 days. These
applications also enhance ripening and result in high-quality and abundant yields. [16; pp. 6–7]
In the experiments conducted by Sh. Kh. Abdualimov, F. A. Abdullaev, and D. Rakhimova [1],
the application of the Uzgumi stimulant to seeds at 0.7–0.8 L/t before sowing and at 0.3–0.4
L/ha during the budding and flowering stages, Geohumat at 1.0 L/t for seeds and 1.6 L/ha
during budding and flowering, Gummi 20 at 1.0 L/t for seeds and 0.5–1.0 L/ha during the same
periods, Boms at 300–1000 kg/ha into the soil, and Relekt at 200–400 ml/t for seeds and 200–
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 1689
400 ml/ha during the true leaf and budding stages, resulted in 10–15% faster seedling
emergence compared to the control. Consequently, cotton yield increased by 3.0 to 6.3 c/ha.
In the studies conducted by A. E. Avliyokulov [3] in the Surkhan-Sherobod desert, high yields
were obtained using the Termiz-14 cotton variety grown in irrigated takir and meadow-takir
soils with shallow groundwater (1.5–2 m). Irrigation regimes of 70–75–65% relative to the crop
water requirement (ChDNS), using 1–3–2 and 1–4–2 systems, with water volumes of 700–900
m³/ha before flowering and 800–1000 m³/ha during the ripening period (total seasonal water
volume of 5400–6500 m³/ha), proved to be effective. [20; p. 52]
Research Methodology:All phenological observations in the study were conducted according to
the guidelines provided in “Methods of Conducting Field Experiments” [4], “Методика
полевых опытов с хлопчатником” [5], and Ryzhov S.N.'s “Ways to Increase Fertility of
Irrigated Soils in Central Asia. Cotton Growing” [6]. Yield indicators were processed
mathematically following B.A. Dospekhov’s (1985) methodology.
The experiment was carried out in 8 variants. Variants 1, 2, 3, and 4 were irrigated using a 70–
75–65% regime, and variants 5, 6, 7, and 8 with a 65–70–60% regime. In the 70–75–65% group,
four irrigations were conducted with a total water usage of 3649.6 m³, while the 65–70–60%
group received three irrigations totaling 2844.6 m³.
Cotton yield largely depends on the weight of cotton in a single boll. The influence of various
agro-technical practices, irrigation regimes, and stimulant applications on the weight of cotton
in a single boll was observed during the season.
In these studies, the impact of applying stimulants at different times and rates on the boll weight
of fine-fiber cotton was examined. The cotton harvest was carried out in three pickings. Before
each picking, the average weight of cotton in 100 bolls was measured for each variant.
Research results and their discussion
The obtained scientific data are presented in Table 1. Under the 2023 conditions, across various
irrigation regimes where stimulants were applied, the weight of cotton in a single boll varied
proportionally across all three harvests. In the irrigation regime of 70-75-65% relative to the
crop water requirement (ChDNS), when treated with stimulants, the Uzbiogumin variant
produced cotton bolls with an average weight of 2.1 g, which is 0.1 g heavier than the control.
The Immunoaktiv stimulant variant had bolls weighing 2.2 g, 0.2 g heavier than the control,
while the variant treated with Turkish stimulants also resulted in 2.2 g, again 0.2 g heavier than
the control.
In the 65-70-60% irrigation regime, Uzbiogumin application resulted in a boll weight of 2.1 g,
0.2 g heavier than the control. With Immunoaktiv, the weight was 2.0 g, also 0.2 g higher than
the control. Turkish stimulants resulted in a boll weight of 2.1 g, which was 0.2 g more than the
control. These results indicate that boll weight varied under different irrigation regimes, with
the 70-75-65% regime yielding 0.1 g more than the 65-70-60% regime.
The experiment demonstrated that applying stimulants to the fine-fiber cotton variety SP-1607
under various irrigation regimes had a positive effect on yield. It is important to note that in
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 1690
variants treated with stimulants under different irrigation schedules and levels, cotton growth,
development, and yield accumulation were more optimal. The cotton yield clearly varied based
on irrigation frequency and stimulant effects.
For the SP-1607 fine-fiber cotton variety, irrigated at 70-75-65% relative to ChDNS, the
Uzbiogumin variant yielded 42.7 c/ha, which is 4.3 c/ha more than the control. The
Immunoaktiv variant yielded 43.2 c/ha, 4.8 c/ha more than the control. Variants treated with
Foral BMO, Ecosil, and Brentax KSA stimulants yielded 43.3 c/ha, 4.9 c/ha higher than the
control (Table 1).
1 jadval
Turli sug‘orish tartiblarida parvarishlangan ingichka tolali g’o’zaga stimulyatorlar bilan
ishlov erishning paxta hosiliga ta’siri, 2024 yil
№
Experience
options
Application rates during
seed treatment, budding,
flowering,
and
boll
formation
stages:
ml/t;
ml/ha; l/t; l/ha.
Cotton
yield, s/ha
The
difference
from
control,
s/to
The
difference
compared
to
the
irrigation
regime,s/
to
Watering procedure compared to CHDNS 70-75-65 %
1
Control
-
38,4
-
5,3
2
Uzbiogumin
0,8 l/t, 0,4-0,5-0,6 l/to
42,7
4,3
5,9
3
Immunoactive
30ml/t, 30-30-30 ml/to
43,2
4,8
5,6
4
1)Forol VMO+
2) Ekosil,
1,0 + 1,0 l/to
43,3
4,9
5,8
2)Ekosil
+
3)Brentaks KSA
1,0 + 1,0 l/to
0,5 + 1,0 l/to
Watering procedure compared to CHDNS 65-70-60 %
5
Control
-
33,1
-
6
Uzbiogumin
0,8 l/t, 0,4-0,5-0,6 l/to
36,8
3,7
7
Immunoactive
30ml/t, 30-30-30 ml/to
37,6
4,5
8
1)Forol VMO+
2) Ekosil,
1,0 + 1,0 l/to
37,5
4,4
INTERNATIONAL JOURNAL OF ARTIFICIAL INTELLIGENCE
ISSN: 2692-5206, Impact Factor: 12,23
American Academic publishers, volume 05, issue 06,2025
Journal:
https://www.academicpublishers.org/journals/index.php/ijai
page 1691
2)Ekosil
+
3)Brentaks KSA
1,0 + 1,0 l/to
0,5 + 1,0 l/to
Fine-fiber cotton is watered at a soil moisture content of about 65-70-60% relative to Hdns,
when treated with Uzbekiogumin-36.8 C / ha, when treated with control-3.7 c / ha, when using
an Immunoactive stimulant-37.6 c / ha, when treated with control-4.5 c / ha, when treated with
stimulants Foral BMO, Ecosil, brentax KSA-37.5 S/ha. 4.4 c/ha more cotton harvest was
obtained than in the control group.
Conclusion:
In the experiment, it was found that when thin-fiber cotton was irrigated in the
order of 70-75-65% and 65-70-60% relative to HDNS when using stimulants Foral BMO,
Ecosil, Brentax KSA, cotton yield was 37.5-43.3 c/ha, which is 4.4-4.9 c/ha higher than the
control.
Literature used:
1. Abdualimov Sh.X., Abdullaev F.A., Raximova D. Gumin asosli stimulyatorlarning
g‘o‘zani unib chiqishi, o‘sishi rivojlanishi va paxta hosiliga ta’siri // Agrar fani
xabarnomasi jurnali-2021.-№1(85).–B. 68-72
2. Abdualimov Sh., Karimov Sh., Ziyatov M. Avgust xosilga xosil qo‘shish oyi //
O‘zbekiston qishloq xo‘jaligi jurnali. -Toshkent, 2020. №8. –B 6-7
3. Avliyoqulov A.E. Surxon-Sherobod vodiysi yerlarini gidromodul rayonlashtirish va
almashlab ekishdagi ziroatlarning sug‘orish tartibi. Doktorlik diss.avtoreferati. –Toshkent,
1993, b.1-52.
4. Dala tajribalarini o‘tkazish uslublari. –Toshkent, 2007. –147 b.
5. Методика полевых опытов с хлопчатником. Издание 5-ое допол Тошкент-1981. -246
с.
6. Рыжов С.Н. Пути повышения плодородия орошаемых почв Ср.Азии. Хлопководство,
1954, № 12, С. 64-77
