The Effect of Application of N Fertilizer on the Accumulation of Nitrate in Vegetables
Zhou Yimin, Ren Shunrong, Wang Zhengxiang
ACTA AGRICULTURAE BOREALI-SINICA . 1989, (1): 110 -115 .  DOI: 10.3321/j.issn:1000-7091.1989.01.019