种植密度对西北不同生态区大豆产量及品质的影响

王晓婷, 王立明, 杜世坤, 杨如萍, 张晓艳, 汤春晖, 陈光荣

Effects of Planting Density on Soybean Yield and Quality in Different Ecological Regions of Northwest China

Wang Xiaoting, Wang Liming, Du Shikun, Yang Ruping, Zhang Xiaoyan, Tang Chunhui, Chen Guangrong

表2 不同生态区大豆适宜种植密度

Table 2 Optimal soybean planting density in different ecological regions

品种 Variety 生态区 Ecological region 模型 Model R2 P值 P-value 最佳种植密度（万株/hm2） Optimal planting density (×104 plants/hm2) 汾豆93 FD93 干旱区 y=-7.0634x2+304.81x-175.85 0.813 0.027 21.58 半干旱区 y=-3.4297x2+151.06x+2676.9 0.954 0.004 22.02 干旱半湿润区 y=-1.283x2+44.974x+2904.6 0.451 0.044 17.53 佳禾2号JH2 干旱区 y=-0.8841x2+42.487x+2452.2 0.491 0.041 24.03 半干旱区 y=-2.0599x2+82.164x+3653.0 0.786 0.036 19.94 干旱半湿润区 y=-1.2962x2+32.072x+3440.4 0.446 0.047 12.37