Abstract:The article presents the results of experimental studies to determine the dependence of the rotational speed of a pneumatic disc sprayer with coaxial air flow on the flow rate of the working fluid. To refine the parameters of the working body, studies were carried out within the liquid flow rate q, corresponding to the first and second spraying modes, at different rotation speeds ω, the working body's radius r, and the number of radial channels np. At the same time, the mass of the rotating part of the pneumat… Show more
“…Leshko served as a scientific basis for the creation of reaping and harvesting machines for the harvested mass. It was revealed that during mechanized harvesting of testes, their significant losses are allowed due to easy crumbling [6][7].…”
Section: The Degree Of Knowledge Of the Problemmentioning
The article presents the analysis of technical means for collecting seeds of desert pasture fodder plants. The type of technical means is chosen and the ways of its improvement are outlined. Information about the machine for implementing the technology is given. The material of the article reflects the specifics of the improvement of arid pastures.
“…Leshko served as a scientific basis for the creation of reaping and harvesting machines for the harvested mass. It was revealed that during mechanized harvesting of testes, their significant losses are allowed due to easy crumbling [6][7].…”
Section: The Degree Of Knowledge Of the Problemmentioning
The article presents the analysis of technical means for collecting seeds of desert pasture fodder plants. The type of technical means is chosen and the ways of its improvement are outlined. Information about the machine for implementing the technology is given. The material of the article reflects the specifics of the improvement of arid pastures.
“…It should be noted that the most widely grown cotton species in the world is Gossypium hirsutum L. According to data provided by the U.S. International Agricultural Service in 2020, the Indian state has 13.4 million hectares which is 1/3 part of world cotton cropping area where the total cropping area is 32.94 million hectares worldwide. In India, the fiber yield equals to 487 kg per ha in comparison with worldwide where the average fiber yield is 775 kg per ha (Abdurakhmanov, 2021) [1,2].…”
Section: Introductionmentioning
confidence: 99%
“…These include Afghanistan (27 th place), Turkey (32 nd place), Kyrgyzstan (38 th place), Portugal (41 st place) and Italy (44 th place). Other Central Asian states, Tajikistan and Kazakhstan, rank 51 st and 60 th , respectively, in the group with moderately high water shortages [3,4]. Turkmenistan is ranked in 15 th place (http://darakchi.uz/oz/112845).…”
Past investigate set up application of wrinkle water system to create growth-stage-specific water system planning for upland cotton (Gossypium hirsutum L.) in Uzbekistan. The paper presents encourage examination of water system planning for two cotton assortments and its impact on seed-lint abdicate and water system trim water efficiency beneath wrinkle and trickle water system innovation. Field experiments were conducted in silt loam soils of Samarkand province, Uzbekistan, in 2019, 2020, and 2021. The development stages of germination to blooming, blossoming to boll arrangement, and development were considered for the improvement of water system planning Fc with regard to field capacity (Fc). The best growth, development and seed-lint yield for the C-8286 cotton variety were achieved in drip irrigation with irrigation scheduling of 75-75-70% of Fc, wetting front layer of 50-70-50 cm where the seed-lint yield totaled 4.99 t ha-1. The highest seed-lint yield (4.74 t ha-1) obtained in irrigation scheduling of 70-70-60% Fc regarding Bukhara-102 variety. Irrigation scheduling of 75-75-70% Fc for cotton variety C-8286 and 70-70-60% Fc for Bukhara-102 variety and drip irrigation should be considered applicable practices for both aforementioned cotton varieties on silt loam soils of Samarkand province and for similar soil-climatic conditions of Central Asia.
“…Today, the soil in Uzbekistan warms up to 40-45 degrees during the day, and the temperature does not decline below 35 degrees at night. As a result of global climate change, conducting a number of scientific and research activities aimed at determining the impact of cotton varieties on water and nutrient requirements, growth and development, yield accumulation and changes in cotton fiber quality indicators is one of the urgent tasks of today [1,2].…”
Section: Introductionmentioning
confidence: 99%
“…On the basis of this, the average annual temperature in Uzbekistan can be raised by 2-3 degrees in the north and by 1 degree in the south after 20 years. Climate change will lead to 10-15% more water evaporating from water surfaces and 10-20% more water being utilized as a result of increased plant transpiration and irrigation rates [3].…”
Prior studies have demonstrated that using furrow irrigation to develop the growing stage of upland cotton in Uzbekistan dictates when to schedule irrigation. The paper presents additional research on cotton irrigation timing variety C-8286 and how it affects irrigation crop water productivity and seed-lint yield as well as new fertilizer application technology under furrow and drip irrigation technology. Field research was carried out in silt loam soils of Samarkand province, Uzbekistan, in 2021 and 2022. When developing the irrigation schedule Fc with regard to field water content capacity (Fc), the stages of development from germination to blooming and from blooming to boll creation, and maturity were taken into consideration. The optimal development, growth, and output of seed lint for the. C-8286 cotton variety were achieved in drip irrigation technology with irrigation scheduling of 75-75-70% of Fc, wetting front layer of 50-50-50 cm during the abovementioned three growth stages, respectively where the seed-lint yield totaled 5.20 t ha-1. Irrigation scheduling of 75-75-70% Fc for cotton variety C-8286 and drip irrigation ought to be regarded as appropriate procedures for both aforementioned types of cotton grown on silt loam soils in Samarkand province and for comparable soil-climatic circumstances of Uzbekistan and Central Asia.
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