太行山区鹦哥绿豆种植密度的试验研究

Experimental Study on the Planting Density of Yingge Mung Bean in Taihang Mountain Area

[目的]确定太行山区鹦哥绿豆的最佳种植密度。[方法]设置6万、9万、12万、15万株/hm^24个种植密度,通过调查株高、单株荚数、主茎分枝数、单荚粒数及产量,研究种植密度对太行山区鹦哥绿豆生长的影响。[结果]太行山区鹦哥绿豆的株高和单株荚数均随着种植密度的增大而增加,密度为15万株/hm^2时达到最大值;主茎分枝数和单荚粒数分别在种植密度为9万、12万株/hm^2时出现最大值;产量刚开始随着种植密度的增加而增加,密度为12万株/hm^2时最高,为1255.6 kg/hm^2,随后开始下降。[结论]太行山区鹦哥绿豆的最佳种植密度是12万～15万株/hm^2。

[Objective] The study aimed to confirm the optimum planting density of Yingge mung bean in Taihang mountain area.[Method] Four planting densities of 6.0×10^4、9.0×10^4、1.2×10^5 and 1.5×10^5 plants/hm^2 were set up and the influence of planting density on the growth of Yingge mung bean in Taihang mountain area was studied through investigating the plant height,pod number per plant,branch number on the main stem,grain number per pod and yield.[Result] The plant height and pod number per plant of Yingge mung bean in Taihang mountain area increased along with the increment of planting density and reached the maximum value when the density was 1.5×10^5 plants/hm^2.The maximum values of branch number on the main stem and grain number per pod appeared when the planting densities were 9.0×10^4 and 1.2×10^5 plants/hm^2 resp.At the beginning,the yield increased along with the increment of planting density,the highest yield was 1 255.6 kg/hm^2 when the density was 1.2×10^5 plants/hm^2,and then the yield started to decrease.[Conclusion] The optimum planting density of Yingge mung bean in Taihang mountain area was 1.2～1.5×10^5 plants/hm^2.