Effect of Different Plant Density on Leaves Photosynthesis of Maize(Zea mays L.) at Different Leaves Position
GENG Guangtao, SONG Guicheng, DONG Wenqing, JIANG Chenliang, XU Xiaoming, TANG Canming
Journal of Nuclear Agricultural Sciences . 2015, (8): 1589 -1595 .  DOI: 10.11869/j.issn.100-8551.2015.08.1589