不同类型茎尖菜用甘薯栽培密度对产量的影响

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。

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

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 medium-size 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. Conclu-sion] The research can offer reference for planting vegetable-used sweet potato