优化栽培措施对春玉米密植群体冠层结构及产量形成的调控效应
朴琳1,2(),李波2,陈喜昌2,丁在松1,张宇2,赵明1(),李从锋1()
Regulation Effects of Improved Cultivation Measures on Canopy Structure and Yield Formation of Dense Spring Maize Population
PIAO Lin1,2(),LI Bo2,CHEN XiChang2,DING ZaiSong1,ZHANG Yu2,ZHAO Ming1(),LI CongFeng1()

图1. 2014年不同栽培模式春玉米群体冠层生物量垂直分布
RU,传统栽培模式(CK);SU,耕层优化模式;RWC,冠层优化模式;SWC,综合优化模式。灰色柱代表果穗所在层干物质重(及下层果穗重),黑色和深灰色柱分别代表穗下和穗上干物重。下同

Fig. 1. Vertical distribution of canopy biomass in spring maize under different cultivation modes in 2014
RU, conventional mode (CK); SU, tillage improved mode; RWC, canopy improved mode; SWC, synthetical improved mode. The gray bar represents the biomass weight of ear layers (and the ear weight in lower layer), dark gray and break bars represent the biomass weight of upper and lower ear layers respectively. The same as below