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Qarshi davlat texnika universiteti (QarDTU) ilmiy repozitoriysi — universitetning professor-o'qituvchilari va talabalari tomonidan yaratilgan ilmiy ishlar, maqolalar, dissertatsiyalar va konferensiya materiallarini jamlagan ochiq elektron kutubxona.

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    ASSESSMENT OF THE EFFECT OF IRRIGATION METHODS ON THE GROWTH AND DEVELOPMENT OF RYE CROPS
    (Modern American Journal of Biological and Environmental Sciences, 2026-05-05) Vafoyeva Mavluda Bobomurodovna; Ro‘ziqulov Jahongir Orziqulovich; Yodgorova Gulnora Isroil qizi
    This article presents information on the impact of irrigation in the care of rye crops using traditional and modern resource-saving irrigation technologies on the vegetation period, as well as on plant height during the growth and development of rye. Scientific research was conducted in 2023-2025 in the conditions of light gray soils of the Karshi district. The rye varieties Shalola, Vakhshskaya-116 and Ns Savo were used as the objects of the experiment.
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    KUZGI BUG‘DOY YETISHTIRISHDA SUVTEJAMKORTEXNOLOGIYALARNI QO‘LLASH SAMARADORLIGI
    (XALQARO ILMIY-ILMIY-TEXNIK KONFERENSIYA TO‘PLAMI, 2026-03-12) Avlakulova Moxigul Meylievna
    Maqolada kuzgi bug‘doyning Qashqadaryo viloyati sharoiti uchun rayonlashtirilgan ”Turon” navini yetishtirishda yomg‘irlatib sug‘orish usulini qo‘llash bo‘yicha o‘tkazilayotgan dala tajribalarining dastlabki natijalari keltirilgan. Ma’lumki respublikamizda oziq-ovqat xavfsizligini ta’minlash, aholiningdonmahsulotlariga bo‘lgan talabini qondirish maqsadida keng miqyosdagi sug‘oriladigan maydonlarda don ekinlari, jumladan kuzgi bug‘doy navlari yetishtirib kelinadi. Keyingi yillarda suv resurslaridan foydalanish imkoniyatining qisqarib borishi natijasida bug‘doyni sug‘orishning an’anaviy usulida suvdan foydalanish samaradorligi kamligi tufayli oshiqcha suv isrofgarchiligigayo‘l qo‘yilmoqda. Shu munosabat bilan ushbu maqola g‘allani sug‘orishda tejamkor hisoblangan yomg‘irlatib sug‘orish usulidan foydalanish bo‘yicha olib borilayotgan dala tadqiqotlari asosida yozilgan.
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    Water shock when starting pumps in automated pumping stations
    (AIP conference proceedings, 2025-07-15) Sobir Jonkobilov; Bektemir Jonkobilov, Shohruh Bahodirov, Jahongir Ruzikulov, Murodilla Ulugmuradov
    The article is devoted to the study of water hammer when starting pumps in automated pumping stations with low inertia of moving masses and taking into account pressure losses when filling the elastic capacity of the pipeline. The article provides an analysis of scientific works devoted to the determination of shock pressure during the startup of pumping stations. The article presents an analytical study of shock pressure during the startup of automated pumping stations, which provides an accurate assessment of the optimal parameters of pumping units and pressure systems. The article obtained dependence for calculating the shock pressure when starting up automated pumping stations, taking into account energy loss along the length of the pipeline; it increases the reliability of the pressure system and ensures resource saving when designing pressure-hydraulic systems. A graphic-analytical method is proposed to determine the shock pressure during a hydraulic shock when starting a pump with an open valve installed at the beginning of the pressure pipeline. The results of theoretical studies are compared with experimental data on shock pressures when starting the main pumps of pumping stations. At the same time, a reliable agreement was obtained between the results of calculations of pressure pipelines based on the proposed dependence on water hammer and experimental data.
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    METHODS AND MAIN ADVANTAGES OF DETERMINING WATER CONSUMPTION IN RIVERS AND CANALS
    (GALAXY INTERNATIONAL INTERDISCIPLINARY RESEARCH JOURNAL (GIIRJ), 2026-03-03) Chuliyev Mahmatmurod Norboyevich; Rozikulov Jahongir Orzikulovich
    Today, the need for rivers, lakes, glaciers and groundwater, which are considered sources of fresh water not only in our country but also on Earth, is increasing day by day, and the expansion of the national economy is an urgent issue. Providing water to agriculture, which is the main pillar of the economy, eliminating water-related problems, and ensuring sustainable economic development are of course the main tasks of quantitative study of river waters and their constant measurement
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    Daryo va kanallarda suv sarfini aniqlashda bajariladigan usullar va uning asosiy afzalliklari
    (XALQARO ILMIY-AMALIY KONFERENSIYA TO‘PLAMI, 2026-03-27) Chuliyev Mahmatmurod Norboyevich; Ro‘ziqulov Jahongir Orziqulovich
    Bugungi kunda nafaqat mamlakatimizda, balki yer yuzida chuchuk suv manbai hisoblangan daryolar, ko‘llar, muzliklar hamda yer osti suviga bo‘lgan ehtiyoj kun sayin ortib borishi barobarida, xalq xo‘jaligi tarmoqlarini kengaytirish dolzarb masala hisoblanadi. Iqtisodiyotning asosiy ustuni hisoblangan qishloq xo‘jaligini suv bilan ta’minlash, suvga bog‘liq bo‘lgan muammolarni bartaraf etish, iqtisodiyotni barqaror rivojlantirish uchun albatta daryo suvlarining miqdor jihatdan o‘rganish hamda uni doimiy o‘lchash, asosiy vazifalardan hisoblanadi.