Effect Function of NPK Fertilization, N Fertilization in Different Stages and Its Application in Formula Fertilization on Cauliflower 
LI Guang-Qing, XIE Zhu-Jie, YAO Xue-Qin
Scientia Agricultura Sinica . 2011, (10): 2070 -2080 .  DOI: 10.3864/j.issn.0578-1752.2011.10.012

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