Topinambur o‘simligi Fayz-baraka navining unib chiqish darajasi va ko‘chat qalinligiga mineral o‘g‘itlar shakllari va me’yorlarining ta’siri
Effect of mineral fertilizer forms and rates on the germination rate and plant density of “Fayz-baraka” Jerusalem artichoke variety
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Abstract
The article examines the effect of nitrogen fertilizer forms (ammonium sulfate, urea and ammonium nitrate) and rates (N₆₀–N₁₅₀ against a P₉₀K₉₀ background) on seedling emergence and plant density of the Jerusalem artichoke variety Fayz-baraka. In the 2025 field experiment plant density increased in all variants over the observation dates, with the most intensive increase between 12 and 17 April (on average by 22–24 thousand plants/ha). Ammonium nitrate was the most effective form: at N₁₂₀P₉₀K₉₀ plant density reached 94.1 thousand plants/ha after thinning and 92.9 thousand plants/ha at the end of the growing season. N₁₂₀P₉₀K₉₀ was the optimal rate for all fertilizer forms, and increasing it to N₁₅₀ reduced the indicators.
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Z.Soatmurodova, Sh.Xujamurodova. Topinambur (Helianthus tuberosus) o‘simligining dorivorlik xususiyatlari [Medicinal properties of Jerusalem artichoke (Helianthus tuberosus)]. “Perspectives for the integration of natural sciences” republican scientific and practical conference november 22, 2024. (in Uzbek)
Abdukarimov D.T., Elmurodov A., Komilova M., Laxanov O. Zarafshon vodiysi sharoitida topinambur navlaridan yuqori va sifatli hosil olish bo‘yicha tavsiyalar [Recommendations for obtaining high and good-quality yields from Jerusalem artichoke varieties in the conditions of the Zarafshan valley]. Samarqand 2002. 24 b. (in Uzbek)
Amanova M. Mavlyanova R.F., Rustamov A. Topinambur ekini urug‘chiligi bo‘yicha tavsiyanoma [Recommendations on seed production of Jerusalem artichoke]. Fan nashriyoti.T. 2011. (in Uzbek)
Ostonaqulov T., Elmurodov A. Zarafshon vodiysi sharoitida topinambur o‘stirish texnologiyasining ilmiy asoslari va urug‘chiligini tashkil etish xususiyatlari [Scientific basis of Jerusalem artichoke cultivation technology and features of organizing its seed production in the conditions of the Zarafshan valley]. Toshkent davlat iqtisodiyot universiteti. 2011-yil 5-noyabr. O‘zbekistonda topinambur industriyasi: yutuqlar va istiqbollar. Ilmiy to‘plami. (in Uzbek)
Ostonaqulov T.E. Sabzavot ekinlar biologiyasi va o‘stirish texnologiyasi [Biology and cultivation technology of vegetable crops]. – T.:1997. -380 bet. (in Uzbek)
Partoev K., Saydaliev N.Kh. Produktivnost' topinambura (Helianthus tuberosus L.) v usloviyakh Gissarskoy i Rashtskoy dolin Tadzhikistana [Productivity of Jerusalem artichoke (Helianthus tuberosus L.) in the conditions of the Hissar and Rasht valleys of Tajikistan]. Dushanbe-2019. (in Russian)