不同类型茎尖菜用甘薯栽培密度对产量的影响

Effect of Planting Density on Yield of Different Leaf Types of Vegetable-used Sweet Potato

[目的]探讨不同类型茎尖菜用甘薯最佳栽培密度。[方法]以大叶型品种福薯7-6、小叶型品种薯绿1号及中等花叶型品系徐菜薯2号为试验材料,研究不同类型品种及密度对产量的影响。[结果]相同栽培密度下,大叶型品种福薯7-6产量最高、小叶型品种薯绿1号最低,产量受叶型影响较大。同一品种在不同栽培密度下,产量有所差异,小叶型品种薯绿1号和中等大小花叶型品种徐菜薯2号合理密植可以提高产量,最适密度为20 cm×20 cm至20 cm×15 cm;不同密度处理对大叶型品种福薯7-6产量影响不显著,栽培条件好的可适当降低种植密度,可选择20 cm×25 cm。[结论]该研究可为甘薯栽培提供参考。

[Objective]In order to explore the optimum planting density of different types of vegetable-used sweet potato.[Method]This paper studied the effects of different varieties and density on yield using large-size leaf type Fushu7-6,small-size leaf type Shulü No. 1 and mediumsize lobbed type line Xucaishu No. 2 as experimental materials. [Result] Yield of large-size leaf type Fushu7-6 was the highest in the same density,and yield of small-size leaf type Shulü No. 1 was the lowest. So,leaf size has a great impact on yield. The yield of the same cultivar was different at different cultivated densities,among which the yield of Shulü No. 1 and Xucaishu No. 2 was higher in high planting density,the optimum density was 20 cm × 20 cm to 20 cm × 15 cm. The effect of different density treatments on the yield of large-size leaf type Fushu 7-6 was not significant,which can be appropriate to reduce the planting density to 20 cm × 25 cm if cultivation conditions was good. [Conclusion]The research can offer reference for planting vegetable-used sweet potato