Keywords
Abstract
Tuproqning mexanik tarkibi uning muhim fizik xossalaridan biri bo‘lib, tuproqning suv-fizik xususiyatlari, unumdorligi va meliorativ holatini baholashda muhim ahamiyat kasb etadi. Tuproq granulometrik tarkibini aniqlashda keng qo‘llaniladigan pipetka usuli yuqori aniqlikka ega bo‘lsa-da, katta mehnat sarfi va uzoq vaqt talab etadi. Gidrometr usuli esa nisbatan tezkor va amaliy jihatdan qulay usul hisoblanadi. Mazkur maqolada pipetka va gidrometr usullari yordamida aniqlangan mexanik tarkib ko‘rsatkichlari o‘rtasidagi bog‘liqlik regressiya tahlili asosida baholandi. Tadqiqot natijalariga ko‘ra, regressiya tahlilida aniqlangan determinatsiya koeffitsienti qiymatlari qum fraksiyasi uchun R2=0.83 chang fraksiyasi uchun R2=0.77 hamda loy fraksiyasi uchun R2=0.92 ni tashkil etdi. Olingan natijalar har ikkala usul o‘rtasida kuchli statistik bog‘liqlik va yuqori darajadagi moslik mavjudligini ko‘rsatdi. Tadqiqot natijalari gidrometr usulini pipetka usuliga muqobil ravishda qo‘llash imkoniyatini ilmiy jihatdan asoslaydi.
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