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..................................................................