EN中文
SIMULATION STUDY ON RATIOS OF NITROGEN, PHOSPHORUS AND POTASSIUM FERTILIZERS REQUIRED IN THE CROP PRODUCTION IN CHINA
Chen Tongbin, Chen Shiqing, Xu Hongtao, Huang Shikeng, Chen Yan
Acta Geographica Sinica . 1998, (1): 32 -41 .  DOI: 10.11821/xb199801004