Effects of Shading on Nutrient Contents and Growth of Orchid Plants
LI Jin-cai, ZHAO Xi-heng, ZHANG Qin-ying, GUO Fu-chang
ACTA AGRICULTURAE BOREALI-SINICA . 2006, (4): 51 -54 .  DOI: 10.3321/j.issn:1000-7091.2006.04.013