果树树冠遮阴模型的改进
王晶晶,毕华兴1,2,3,4*,孙于卜,段航旗,彭瑞东
Improved model of canopy shading for fruit tree
WANG Jingjing, BI Huaxing1,2,3,4*, SUN Yubo, DUAN Hangqi, PENG Ruidong
南京林业大学学报(自然科学版) . 2018, (05): 135 -140 .  DOI: 10.3969/j.issn.1000-2006.201711049