大豆种植密度对玉米/大豆间作系统产量形成的竞争效应分析
任媛媛1(), 张莉2, 郁耀闯1, 张彦军1, 张岁岐3,*()
Competitive effect of soybean density on yield formation in maize/soybean intercropping systems
REN Yuan-Yuan1(), ZHANG Li2, YU Yao-Chuang1, ZHANG Yan-Jun1, ZHANG Sui-Qi3,*()

图4. 不同间作方式对作物侵占力和竞争比率的影响
处理同图2。不同小写字母表示同一种植比例下不同密度梯度间的差异显著, 不同大写字母表示同一密度梯度下不同种植比例之间的差异显著(P < 0.05)。

Fig. 4. Effects of different interplanting patterns on crop aggressivity and competition ratio
Treatments are the same as those given in Fig. 2. Different letters denote significant difference at P < 0.05 among different soybean density in the same row proportion (lowercase letters), and among different row proportions in the same soybean density (capital letters).