KIRISH ................................................................................................................3I BOB. AZOT HAQIDA UMUMIY TUSHUNCHA .......................................6 1.1 Azot va uning birikmalari toksikologiyasi .....................................................61.2 Azotning ishlatilishi ........................................................................................8II BOB. O’SIMLIKLAR O’ZLASHTIRISHIGA QULAY BO’LGAN AZOT FORMALARI …………………………………………………………..…….112.1 Azotga boy oziq-ovqatlar .............................................................................112.2 Azot sikli ......................................................................................................142.3 Biologik fiksatsiya ........................................................................................162.4 Azotning o’simlik hujayrasida uchrashi .......................................................182.5 Dukkakli o’simliklarda azotning uchrashi ...................................................20III BOB. AZOTLI OʻGʻITLARNING O’SIMLIKLARGA TA’SIRI .........253.1 O’simliklarda azot yetishmasligi yoki ortiqchaligi alomatlari .....................253.2 O’simliklar uchun azotga boy o’g’itlar turlari .............................................28Xulosa ...............................................................................................................31Foydalanilgan adabiyotlar va manbalar .......................................................33