Abstract: Response of cabbage to NH^₄+-N and NO₃^--N (mmol/ L) quantity and ratio was studied in solution culture. Ratio of NH^₄+-N to NO₃^--N (mmol/ L) of cabbage suitable growth is 5. 0∶5. 0. The accumulated quantity 2N retained in cabbage decreased , while NO₃^--N quantity increased with the increase of NH^₄+-N rate in nutrition solution was over 75 % , praline content increased in cabbage leaf , growth rate decreased , leave relative water content and root length obviously decreased , the amount of root absorption of P , K, Ca , Mg etc decreased , cabbage obviously suffered from ammonia injury. Regulating suitable nitrogen form proportion in cabbage growth condition would be benefit to cabbage growth and quality , and available utilization and absorption of water and nutrient .

Key words: Cabbage, Nitrogen form, Nutrient