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Azotning o’simliklar hayotidagi o’rni M U N D A R I J A :   KIRISH....................................................................................................................... I. ADABIYOTLAR TAXLILI…………………………………………………….. II. BOB. ASOSIY QISM........................................................................................ 2.1. Azot haqida umumiy ma’lumot....................................................................... 2.2. Azotning o’simliklar hayotidagi ahamiyati..................................................... 2.3Mineral elementlarning o’simliklar tanasidagi miqdori…………………………… III.AZOTLI O’G’ITLARNING O”SIMLIKLARGA TA’SIRI XULOSA.................................................................................................................... FOYDALANILGAN ADABIYOTLAR..................................................................  

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