Abstract
Ushbu maqolada azotli o'g'itlarning ta'sir mexanizmi tuproq-o'simlik tizimi doirasida tahlil qilinadi. Azotli o'g'itlar tarkibidagi azotning ammoniy, nitrat va amid shakllari tuproqdagi nitrifikatsiya, denitrifikatsiya, immobilizatsiya va yuvilish jarayonlari orqali o'zgarishga uchraydi. O'simliklar nitrat va ammoniyni maxsus transportyor oqsillar orqali o'zlashtirib, nitrat reduktaza va glutamin sintetaza fermentlari ishtirokida aminokislotalar va oqsillarga aylantiradi. Maqolada azotning fotosintez, xlorofill sintezi va hosildorlikka ta'siri, shuningdek ortiqcha azotning ekologik oqibatlari ko'rib chiqiladi.
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