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ҒЎЗА КЎСАКЛАРИ ОЧИЛИШИДА ХОРИЖИЙ ВА МАҲАЛЛИЙ ДЕФОЛИАНТЛАРНИНГ АҲАМИЯТИ

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MAQOLA ANNOTATSIYASI

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Хорижий Энто-Дефол дефолиантининг ғўзани сунъий баргсизлантириш учун ғўза кўсаклари 30-40% очилганда, гектар ҳисобига 0,200 л/га меъёри қўлланилганда, барглар тўкилиши қолган вариантларга нисбатан юқори натижа кўрсатди. Маҳаллий ФанДЕФ-аъло дефолиантининг 7,0 л/га меъёри қўлланилган вариантида эса қолган вариантларга нисбатан самарадорлиги юқори бўлди. Ғўза кўсаклари очилишида қайси дефолиантни қўллаш яхши самара бериши ёритилган. Дефолиациянинг иккинчи (50-60% кўсаклар очилганда) муддатида дефолиантлар самарадорлиги юқори бўлиб, кўсакларнинг очилиш фоизи биринчи муддатга нисбатан юқорилиги сабабли ҳосилдорлик ҳам ошиқча бўлиб, бунинг эвазига эса рентабеллик 1,1-5,1% га ошди. С-8290 ғўза нави С-6775 ғўза навига нисбатан 10-15 кунга эрта етилиши эвазига унинг барча кўрсаткичлари юқори бўлди, лекин ҳар икки ғўзанинг барг пластинкасида катта фарқ бўлмаганлиги боис қўлланилган дефолиантларнинг меъёрида ҳам фарқ кузатилмади.

MUALIFLAR

M.Ubaydullayev

Farg’ona politexnika instituti

SH.Akramov

Farg’ona politexnika instituti

Teglar

# дефолиация ва дефолиантлар турла# ғўза барглари# қуриган ва ярим қуриган барглар# дефолиация и виды дефолиантов# листья хлопчатника# сухие и полисухие листья# types of defoliation and defolia# cotton leaves dry and semi-dry l

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Foydalanilgan adabiyotlar

Teshaev F., Ubaydullaev M. Opredelenie effektivnyh norm novyh defoliantov v uslovijah lugovo-solonchakovyh pochv ferganskoj oblasti pri raskrytii korobochek 50–60% sortov hlopchatnika S-8290 i S-6775. Aktul’nye problemy sovremennoj nauki [Determination of effective norms of new defoliants in the conditions of meadow-saline soils of the Fergana region with the opening of bolls of 50-60% of cotton varieties C-8290 and C-6775]. Actual problems of modern science. Russia, 2020, no. 5 (114), p. 62. eLIBRARY ID: 44169429. Available at: https://www. elibrary.ru/item.asp?id=44169429/.

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Uljaboev А.А., Ubaydullaev M.M. UzDEF defoliantining g‘o‘za bargini to‘ktirishdagi samaradorligi [Efficacy of UzDEF defoliant in cotton leaf shedding]. Mezhdunarodnyj nauchnoobrazovatel’nyj elektronnyj zhurnal «Obrazovanie i nauka v XXI veke» – International scientific and educational electronic journal «Education and Science in the XXI century». September, 2021, issue no. 18, vol. 2, рр. 885-889. Available at: https://a7d15ec7-c180-421a-ab56-70aae3695dcc. filesusr.com/ugd/a62191_13c5eb1ba7de4b1dacbe6f4eea018c02.pdf/.

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