Dynamic Distribution of N,P and K in Different Growth Stages in the Stem and Leaf of Flue-cured Tobacco
WU Yun xia, LÜ Ying
ACTA AGRICULTURAE BOREALI-SINICA . 2000, (S1): 194 -196 .  DOI: 10.3321/j.issn:1000-7091.2000.Z1.041