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8Central Asian Research Journal For Interdisciplinary Studies (CARJIS)
ISSN (online): 2181-2454
Volume 2 | Issue 5 | May, 2022 | SJIF: 5,965 | UIF: 7,6 | ISRA: JIF 1.947 | Google Scholar |
www.carjis.org DOI: 10.24412/2181-2454-2022-5-655-659
THE STRANGER HARVEST KILLER
Sherzodbek Alijanovich Teshabaev
Andijan Institute of Agriculture and Agrotechnology Head of the Department of Agrobiology Faculty q.x.f.f.d. (PhD)
Shohjahon Davlatbekovich Botirov
Student of Andijan Institute of Agriculture and Agrotechnology
Email: shokhj akhon5886@gmail .com
ABSTRACT
In the experiment, the main tillage methods applied to the soil against weeds in the cotton-growing area as a past crop, as well as the combined application of herbicides, have a significant effect on the annual and perennial weeds in the winter wheat field.
Keywords: soil, water, seeds, resource saving, weed, crop, herbicide
АННОТАЦИЯ
В опыте существенное влияние на однолетние и многолетние сорняки на поле озимой пшеницы оказали основные приемы обработки почвы, применяемые против сорняков в хлопкосеющем районе в качестве прошлогодней культуры, а также комбинированное применение гербицидов.
Ключевые слова: почва, вода, семена, ресурсосбережение, сорняк, урожай, гербицид.
INTRODUCTION
In the developed countries of the world, where cotton and winter wheat are grown, herbicides are used in the fight against weeds, as well as in the application of herbicides before plowing, sowing of seeds, as well as during the growing season. Taking into account the fact that the phytosanitary condition of the fields in the system of crop rotation can not always be improved by a single tillage, it is possible to obtain herbicides in combination with other agro-measures.
In our country, it is important to conduct research on the improvement of agrotechnologies for the production of high-quality cotton and winter wheat, as well as the use of herbicides in combination with the main methods of tillage at different
Central Asian Research Journal For Interdisciplinary Studies (CARJIS)
ISSN (online): 2181-2454
Volume 2 | Issue 5 | May, 2022 | SJIF: 5,965 | UIF: 7,6 | ISRA: JIF 1.947 | Google Scholar |
www.carjis.org DOI: 10.24412/2181-2454-2022-5-655-659
times and in different doses. From this point of view, it is necessary to conduct scientific research to determine the effectiveness of the use of basic tillage methods and herbicides in the fight against weeds in cotton and wheat fields, as well as their widespread use.
METHODOLOGY AND SYSTEM OF EXPERIMENTATION
Field experiments were conducted in 6 variants, 4 repetitions and 1 tier. The area of each option was 720 m2, and the accounting area was 360 m2. The total area of the experiment is 1,728 hectares. In our experiment in cotton, Dafosat plowed against weeds before plowing, Stomp 33% e.c. In our field experiments, which were carried out with winter wheat sown with herbicides, Granstar 75% DF was used against annual weeds, and Granstar Plus herbicide was used for perennials. In the experiment, new Andijan-35 cotton and Krasnodar-99 winter wheat were bred.
Experimental system.
Cotton Autumn wheat
Soil cultivation method Name of herbicides Gerbicide rate n/ra Soil cultivation method Name of herbicides Gerbicide rate r/ra
Plowing in the usual way to a depth of 23-30 cm Control, no herbicide - Cultivation using a cultivator to a depth of 15-20 cm between rows of cotton Control, no herbicide -
Dafosat (standard) 6,0 Granstar 75% DF 20,0
Stomp 33% э.к. 2,0 Granstar plus 75% 25,0
Plowing to a depth of 25-30 cm on a two-tiered plow Control, no herbicide - Control, no herbicide -
Dafosat (standard) 6,0 Granstar 75% DF 20,0
Stomp 33% э.к. 2,0 Granstar plus 75%. 25,0
RESEARCH RESULTS AND THEIR DISCUSSION
The effect of cultivator cultivation and application of herbicides at a depth of 15-20 cm between rows of cotton on weeds in winter wheat fields. The process of basic tillage in agricultural lands plays a key role in weed control. As a result of
Central Asian Research Journal For Interdisciplinary Studies (CARJIS)
ISSN (online): 2181-2454
Volume 2 | Issue 5 | May, 2022 | SJIF: 5,965 | UIF: 7,6 | ISRA: JIF 1.947 | Google Scholar |
www.carjis.org DOI: 10.24412/2181-2454-2022-5-655-659
proper tillage methods and depth, it is possible to lose 50-60% of annual and perennial weeds in winter wheat fields. At the same time, one of the main disadvantages is that this measure consumes a lot of energy and leads to an increase in the cost of the expected harvest. At present, as a result of the use of resource-saving agro-technologies, ie shallow tillage methods, the level of weed infestation is increasing (GI Bazdyrev [36; p. 27], R. Sidikov]. b.], NG Zakharov, MA Polnyakov [64;. pp. 98-102], GN Hasanov, DU Magomedov [49; p. 23]).
Based on the above sources, in our research, weeds were counted at the beginning of the growing season against weeds at a depth of 15-20 cm between rows of cotton before and after cultivation with the help of a cultivator.
According to the data obtained, the soil was treated with a simple plow to a depth of 28-30 cm, non-herbicide control against weeds. m2, perennial weeds totaled 13.75 pieces / m2, and after tillage - 7.80 pieces / m2.
Against this background (before plowing before sowing) the number of annual weeds before tillage in the 2nd variant using Dafosat herbicide at the rate of 6.0 l per hectare against weeds is 8.15 pieces / m2, after cultivation 3.25 pieces / m2. The number of perennial weeds was found to be 5.35 pieces / m2, and 3.20 pieces / m2 after tillage. In the 3rd variant, using Stomp herbicide at the rate of 2.0 l per hectare against weeds, the total number of annual weeds before tillage is 5.70 units / m2, after cultivation - 3.0 units / m2, perennials. 12.40 units / m2, and 6.20 units / m2 after tillage.
The soil was plowed to a depth of 28-30 cm with a two-tier plow and no herbicide control was applied. perennial weeds were found to be a total of 10.40 pieces / m2, and 5.25 pieces / m2 after tillage. In Option 5, Dafosat herbicide was applied at a rate of 6.0 l per hectare against weeds in the above background. the number of weeds totaled 4.50 pieces / m2, and 2.50 pieces / m2 after tillage. Considering the weeds in option 6, which applied Stomp herbicide at the rate of 2.0 l per hectare against weeds, the total number of annual weeds was 4.75 pieces / m2, after treatment this figure was 2.30 pieces / m2, perennial weeds. the number of weeds was 9.70 pieces / m2, and after tillage the figure was 4.05 pieces / m2.
Evidence suggests that weed control has been shown to have a significant effect on the application of herbicides in combination with various methods of soil treatment.
In our research in the field of winter wheat, weeds were cultivated with a cultivator at a depth of 15-20 cm between rows of weeds. In order to study the effect
Central Asian Research Journal For Interdisciplinary Studies (CARJIS)
ISSN (online): 2181-2454
Volume 2 | Issue 5 | May, 2022 | SJIF: 5,965 | UIF: 7,6 | ISRA: JIF 1.947 | Google Scholar |
www.carjis.org DOI: 10.24412/2181-2454-2022-5-655-659
of control on the control of weeds in the cotton field when the herbicides were applied at the rate of / ha, the number of weeds was counted before and 30 days after sowing of the herbicide in order to study the effect of control in the field of winter wheat.
According to the data obtained, the soil was cultivated with a simple plow at a depth of 28-30 cm without the use of herbicides. In Option 1, annual weeds before herbicide application accounted for a total of 23.6 units / m2, while perennials accounted for a total of 5.9 units / m2, while cotton as a previous crop yielded 6.0 l / ha. In the 2nd variant using Dafosat herbicide, the number of annual weeds was 20.9 pieces / m2, and in the case of perennials it was 3.9 pieces / m2. 0 pcs / m2, in the case of cotton as a previous crop, 2.0 l / ha per hectare. and 4.8 units / m2
However, compared to the control option, annuals decreased by 5.1 units / m2, and perennials decreased by 1.1 units / m2.
In our study, weeds were treated with a two-tiered plow to a depth of 28-30 cm. Cotton was grown as a previous crop without the use of herbicides. In Option 4, annual weeds before herbicide application accounted for a total of 20.5 pieces / m2, while perennials weighed a total of 4.5 pieces / m2, while cotton as a perennial crop yielded 6.0 l / ha. In the 5th variant using Dafosat herbicide, the number of annual weeds was 16.3 pieces / m2, perennials - 2.6 pieces / m2, compared to the control variant, annuals - 4.2 pieces / m2, perennials - 1, In the 6th variant, where the number of annual weeds is 13.9 pieces / m2, and in the case of perennials, 3.3 d. mother / m2
Compared to the horse variant, annuals produced 6.6 units / m2 less, and perennials produced 1.2 units / m2 less.
Experimental data show that cotton as a past crop has been used in combination with herbicides in combination with various tillage and soil treatment techniques.
In our study, during the harvest of winter wheat against weeds Granstar against annual weeds 75% DF 20 g / ha, against perennial weeds Granstra plus 25 g / ha 30 days after the application of herbicides. the effect on weeds was observed.
In particular, in control 1, the total number of annual weeds was 34.7 pieces / m2, and the number of perennial weeds was 11.2 pieces / m2, compared to the initial situation, annual weeds were 11.1 pieces / m2. , the number of perennial weeds was found to be more than 5.3 pieces / m2.
In Option 2, where Granstar herbicide was applied at the rate of 20.0 g / ha per hectare during the winter wheat harvest, the number of annual weeds was 2.9 units /
Central Asian Research Journal For Interdisciplinary Studies (CARJIS)
ISSN (online): 2181-2454 Volume 2 | Issue 5 | May, 2022 | SJIF: 5,965 | UIF: 7,6 | ISRA: JIF 1.947 | Google Scholar |
www.carjis.org DOI: 10.24412/2181-2454-2022-5-655-659
m2, which was 18.0 units / m2 less than in the previous case. The number of weeds was 5.1 units / m2, which is 1.2 units / m2 more than before.
In the 3rd variant, when Granstar plus herbicide was applied at the rate of 25.0 g / ha per hectare during the harvest of winter wheat, the number of annual weeds was 12.9 pieces / m2, compared to the previous state of 5.6 pieces / m2 per hectare, perennial weeds. It was noted that it was 2.2 units / m2, which is 2.6 units / m2 less than before.
Control of weeds was carried out with the help of a cultivator at a depth of 1520 cm between rows of cotton, control without the use of herbicides. Compared to the initial situation, the number of annual weeds increased by 3.7 units / m2, and the number of perennial weeds increased by 3.5 units / m2.
In the 5 th variant, when Granstar herbicide was applied at the rate of 20.0 g / ha per hectare during the harvest of winter wheat, the number of annual weeds was 1.1 pieces / m2, which is 15.2 pieces / m2 less than before and more. The number of weeds was 3.2 units / m2, which is 0.6 units / m2 more than before.
CONCLUSION
From the data obtained, it can be concluded that the main tillage methods used against weeds in the area where cotton was grown as a past crop, as well as the application of herbicides in combination, have a significant effect on the field of winter wheat.
REFERENCES
1.Узбекистон Республикаси Президентининг 2019 йил 17 июндаги ПФ-5742-сон «Кишлок хужалигида ер ва сув ресурсларидан самарали фойдаланиш чора-тадбирлари тугрисида" ги фармони
2.Муминов К.М., Ризаев Ш.Х. Агротехнические и химические меры борьбы с сорняками на посевах озимой пшеницы // Зерновое хозяйство. 2005. №6. С. 21-22.
3.Хдсанова Ф.М., Саломов Ш.Т. "Кишлок хужалигида янги тежамкор агротехнологияларни жорий этиш" мавзусидаги халкаро илмий амалий конференция маърузалар туплами. Т. 2011. Б. 258-259.
4.Тешабаев Ш.А., Хошимов И.Н. 'Туза майдонларида усувчи бегона утларга карши уйгунлашган кураш" АГРО ИЛМ 2020 №1.Б. 57-59
