The article is devoted to the study of the proportion of contamination of raw cotton, the geometric dimensions and the number of contaminations of raw cotton are analyzed. It is shown that the existing method used in practice for determining the contamination of raw cotton by the weight of the litter does not fully characterize the contamination of raw cotton as an object of cleaning. The influence of the type and quality of the collection and the variety of raw cotton on the weed fraction was determined.

It is shown that in the composition of raw cotton of the highest grades and machine, about the manual collection, there is a significant amount of collection of small litter.

It has been established that weed impurities up to 6 mm in size make up 93-97% of the total contamination of raw cotton.

It is recommended, based on the analysis of the results of the experiment, to improve the quality of the collection of raw cotton, control the collection, take into account the influence of fractional cotton harvesters, take into account the fractional composition of weeds when drawing up a plan for harvesting raw cotton, and also carry out a wide development of the composition of raw cotton in this area by studying the factors influencing the study of the geometric dimensions of contamination, give the appropriate conclusions.

Small and large litter, weed fraction, cleaning plan

Chaudhary, I. J., & Rathore, D. (2022). Effects of ambient and elevated ozone on morpho physiology of cotton (Gossypium hirsutum L.) and its correlation with yield traits. Environmental Technology & Innovation, 25, 102146. https://doi.org/10.1016/j.eti.2021.102146

Cai, Z., Haque, A. N. M. A., Dhandapani, R., & Naebe, M. (2023). Impact of variability of cotton gin trash on the properties of powders prepared from distinct mechanical approaches. Powder Technology, 413, 118045. https://doi.org/10.1016/j.powtec.2022.118045

Tian, J., Zhang, X., Zhang, W., Li, J., Yang, Y., Dong, H., Jiu, X., Yu, Y., Zhao, Z., Xu, S., & Zuo, W. (2018). Fiber damage of machine-harvested cotton before ginning and after lint cleaning. Journal of Integrative Agriculture, 17(5), 1120-1127. https://doi.org/10.1016/S2095-3119(17)61730-1

Safoev, A., & Atajanov, A. (2022). Theoretical study of a pair of "Groom-Saw" to reduce the wear of the grooves in cotton transportation. Transportation Research Procedia, 63, 2984-2991. https://doi.org/10.1016/j.trpro.2022.06.349

Salman M, Zia ZU, Rana IA. (2019). Genetic effects conferring heat tolerance in upland cotton (Gossypium hirsutum L.). Journal of Cotton Research. 2(9):18. https://doi.org/10.1186/s42397-019-0025-2

Arafat, Y., & Uddin, A. J. (2022). Recycled fibers from pre- and post-consumer textile waste as blend constituents in manufacturing 100% cotton yarns in ring spinning: A sustainable and eco-friendly approach. Heliyon, 8(11), e11275. https://doi.org/10.1016/j.heliyon.2022.e11275

Madumarov, I., Ruzmetov, R., Tuychiev, T., & Ismoilov, A. (2022). Experimental results of an improved supplier in the production process and transportation. Transportation Research Procedia, 63, 2998-3004. https://doi.org/10.1016/j.trpro.2022.06.351

Ramprasad, S., Venkata Ramana, M., & Manzur Husayn, M. (2023). Investigation on cotton dust-reinforced epoxy composites. Materials Today: Proceedings. https://doi.org/10.1016/j.matpr.2023.02.230

Hardin, R. G., Barnes, E. M., Delhom, C. D., Wanjura, J. D., & Ward, J. K. (2022). Internet of things: Cotton harvesting and processing. Computers and Electronics in Agriculture, 202, 107294. https://doi.org/10.1016/j.compag.2022.107294

Li, Y., Ji, H., Fan, J., & Su, H. (2023). Microstructure changes and reaction process of cotton at low-temperature oxidation stage. Fuel Processing Technology, 242,107660. https://doi.org/10.1016/j.fuproc.2023.107660

Bawa, A., Samanta, S., Himanshu, S. K., Singh, J., Kim, J., Zhang, T., Chang, A., Jung, J., DeLaune, P., Bordovsky, J., Barnes, E., & Ale, S. (2023). A support vector machine and image processing based approach for counting open cotton bolls and estimating lint yield from UAV imagery. Smart Agricultural Technology, 3, 100140. https://doi.org/10.1016/j.atech.2022.100140

Mathangadeera, R. V., Hequet, E. F., Kelli, B., Dever, J. K., & Kelli, K. M. (2020). Importance of cotton fiber elongation in fiber processing. Sanoat ekinlari va mahsulotlari, 147, 112217. https://doi.org/10.1016/j.indcrop.2020.112217

Sun, S., Li, C., Paterson, A. H., Chee, P. W., & Robertson, J. S. (2019). Image processing algorithms for infield single cotton boll counting and yield prediction. Computers and Electronics in Agriculture, 166, 104976. https://doi.org/10.1016/j.compag.2019.104976

Feng, L., Chi, B., & Dong, H. (2022). Cotton cultivation technology with Chinese characteristics has driven the 70-year development of cotton production in China. Journal of Integrative Agriculture, 21(3), 597-609. https://doi.org/10.1016/S2095-3119(20)63457-8

Welsh, J., Taschetto, A., & Quinn, J. (2022). Climate and agricultural risk: Assessing the impacts of major climate drivers on Australian cotton production. European Journal of Agronomy, 140, 126604. https://doi.org/10.1016/j.eja.2022.126604

Tian, J., Zhang, X., Zhang, W., Li, J., Yang, Y., Dong, H., Jiu, X., Yu, Y., Zhao, Z., Xu, S., & Zuo, W. (2018). Fiber damage of machine-harvested cotton before ginning and after lint cleaning. Journal of Integrative Agriculture, 17(5), 1120-1127. https://doi.org/10.1016/S2095-3119(17)61730-1

Cai, Z., Haque, A. N. M. A., Dhandapani, R., & Naebe, M. (2023). Impact of variability of cotton gin trash on the properties of powders prepared from distinct mechanical approaches. Powder Technology, 413, 118045. https://doi.org/10.1016/j.powtec.2022.118045

Jacobs, J., Mullenix, M., Koebernick, J., Dillard, S., Justice, S., Tigue, D., Rodning, S., & Muntifering, R. (2022). Cotton gin byproduct: Effects on feed intake, quality, and safety for use in diets of gestating beef cows. Applied Animal Science, 38(5), 402-408. https://doi.org/10.15232/aas.2022-02288

Haque, A. N. M. A., Remadevi, R., & Naebe, M. (2021). A review on cotton gin trash: Sustainable commodity for material fabrication. Journal of Cleaner Production, 281, 125300. https://doi.org/10.1016/j.jclepro.2020.125300

Ismail, S. A., Chen, G., Baillie, C., & Symes, T. (2011). Energy uses for cotton ginning in Australia. Biosystems Engineering, 109(2), 140-147. https://doi.org/10.1016/j.biosystemseng.2011.02.010

Mullenix, M., Stewart, R., Jacobs, J., & Davis, D. (2022). Invited Review: Using whole cottonseed and cotton harvest residue in southeastern US beef cattle diets: Quality, intake, and changes in feed characteristics. Applied Animal Science, 38(5), 447-455. https://doi.org/10.15232/aas.2022-0230

Egan, J., Wang, S., Shen, J., Baars, O., Moxley, G., & Salmon, S. (2023). Enzymatic textile fiber separation for sustainable waste processing. Resources, Environment and Sustainability, 13, 100118. https://doi.org/10.1016/j.resenv.2023.100118

Shi, Y., Jiang, J., Ye, H., Sheng, Y., Zhou, Y., Foong, S. Y., Sonne, C., Chong, W. W. F., Lam, S. S., Xie, Y., Li, J., & Ge, S. (2023). Transforming municipal cotton waste into a multilayer fibre biocomposite with high strength. Environmental Research, 218, 114967. https://doi.org/10.1016/j.envres.2022.114967

Yang, Z., Evans, M. N., Buser, M. D., Hapeman, C. J., Torrents, A., & Whitelock, D. P. (2023). Improving modeling of low-altitude particulate matter emission and dispersion: A cotton gin case study. Journal of Environmental Sciences, 133, 8-22. https://doi.org/10.1016/j.jes.2022.03.048

Neupane, J., Maja, J. M., Miller, G., Marshall, M., Cutulle, M., Greene, J., Luo, J., & Barnes, E. (2023). The Next Generation of Cotton Defoliation Sprayer. AgriEngineering, 5(1), 441-459. https://doi.org/10.3390/agriengineering5010029

Hardin, R. G., Barnes, E. M., Delhom, C. D., Wanjura, J. D., & Ward, J. K. (2022). Internet of things: Cotton harvesting and processing. Computers and Electronics in Agriculture, 202, 107294. https://doi.org/10.1016/j.compag.2022.107294

Morais, J., James, J., Hinds, Z., Smith, W., Kelly, B., & Hequet, E. (2020). A method to improve cotton fiber length measurement for laboratory analysis. MethodsX, 7, 100859. https://doi.org/10.1016/j.mex.2020.100859

Negm, M., & Sanad, S. (2020). Cotton fibres, picking, ginning, spinning and weaving. Handbook of Natural Fibres (Second Edition), 3-48. https://doi.org/10.1016/B978-0-12-818782-1.00001-8

Parpiev, A., Mardonov, B., Akhmatov, M., Akhmatov, N. (2023). Law of cotton mass movement in drying drum sections. AIP Conference Proceedings, 2700, статья № 020063. https://doi.org/10.1063/5.0138707

Parpiev, A., Shorahmedova, M., Saidbekova, S. (2023). Research on the geometric dimensions of fine pollutants in cotton. E3S Web of Conferences, 371, статья № 01023. https://doi.org/10.1051/e3sconf/202337101023

Parpiev, A., Shorahmedova, M., Saidbekova, S. (2023). Analysis of the proportions of pollutions in cotton by weight and number. E3S Web of Conferences, 371, №01025. https://doi.org/10.1051/e3sconf/202337101025

Kayumov, A.M., Parpiev, A., Mardonov, B. (2022). Simulation of heat exchange processes in the moving raw cotton pipeline. AIP Conference Proceedings, 2650, статья № 030010, https://doi.org/10.1063/5.0105467

Kayumov, A.M., Parpiev, A., Juraev, T. (2022). Features of drying cotton raw. AIP Conference Proceedings, 2650, №030008. https://doi.org/10.1063/5.0105464

Sabirova, Z.A., Tashpulatov, S.S., Parpiev, A.P. (2018). Mathematical substantiation of the rational package (BAG) of fully-formed FUR articles with content of polymer composition. Journal of Engineering and Applied, 13 (23), pp. 10145-10147 https://doi.org/10.3923/jeasci.2018.10145.10147

Sabirova, Z.A., Tashpulatov, S.S., Parpiev, A.P. (2018). Evaluation of form-resistance of fully-formatted semi-finished furniture sewing products with content of polymer composition. Journal of Engineering and Applied, 13 (23), pp. 10141-10144 https://doi.org/10.3923/jeasci.2018.10141.10144