秦艽种苗不同栽植密度对产量的影响  

Influence of Different Planting Density on Yield of Gentiana macrophylla Seedling

作　　者：王鸿 刘世巍[2] 张守宗 

机构地区：[1]宁夏隆德县中药材产业办公室,宁夏隆德756300 [2]宁夏师范学院化学化工学院,宁夏固原756000

出　　处：《安徽农业科学》2008年第25期10931-10932,共2页Journal of Anhui Agricultural Sciences

基　　金：宁夏自然科学基金资助项目(NZ08171);宁夏高等学校科学研究基金资助项目(2006237);宁夏师范学院基金资助项目(Z07002);国家自然科学基金资助项目(20565003)

摘　　要：[目的]为秦艽大田规范化种植提供科学依据。[方法]以2年生无病虫感染的种苗为试材,设置行距（101、52、02、5 cm）、株距（15、20、253、0 cm）各4个水平,共16个密度组合。移栽2-3年后的秋季9-10月采挖,称其干重,进行统计分析。[结果]株行距为10 cm×15cm和25cm×30cm的组合产量均较低,不利于秦艽生长发育和产量提高。株行距为15 cm×20cm^2、0 cm×15 cm1、0 cm×30 cm和10 cm×25 cm的4个组合的经济效益最好,产量分别为3 295.203、280.203、270.153、336.45 kg/hm^2,净产值分别为49 886.74、9 511.704、9 260.45和46 171.20元/hm^2。[结论]移栽秦艽种苗时,株距保持在10-20 cm,行距保持15-30 cm时,经济效益显著。[Objective] The study was to provide scientific basis for the standardized planting of the Gentiana macrophylla in the field. [Method] With the 2 year-old seedlings without infection of disease and pest as tested material, 16 combinations of different densities with 4 levels of row spacing（10, 15, 20 and 25 cm） and plant spacing（15, 20, 25 and 30 cm）were set up. The G. macrophylla was dig in the fall of Sep. to Oct. after being transplantted 2 - 3 years, and its dry weight was measured and made for statistical analysis. [Result] The yields of the combinations with the planting spacing of 10 cm × 15 cm and 25 cm×30cm were lower, which was not favorable to the growth and yield elevation of G. macrophylla. The economic benefits of the 4 combinations with planting spacing of 15 cm × 20 cm, 20 cm×15 cm, 10 cm×30 cm and 10 cm × 25 cm were the best, and the yield was 3 295.20, 3 280.20, 3 270.15, and 3 336.45 kg/hm^2 resp. The net production value was 49 886.7, 49 511.70, 49 260.45 and 46 171.20 yuan/hm^2 resp. [ Conclusion] The economic benefit of the G. macrophylla was obvious with the row spacing maintained at 10 - 20 cm and plant spacing at 15 - 30 cm when it was transplanted.

关 键 词：秦艽 不同密度 试验设计 最佳密度组合 

分 类 号：S567.239[农业科学—中草药栽培]