蒙古黄芪种苗分级移栽的比较研究

旨在探讨种苗分级移栽对蒙古黄芪生长发育及产量的影响，为其生产质量管理规范(GAP)提供理论依据。采用定点跟踪观测法，对其地下、地上部分生长进行动态观测。种苗分级移栽对蒙古黄芪的生长发育和产量影响较大，其中大苗移栽植株的茎粗、茎分枝、叶面积均最大，分别为4.84 mm/株、14.69个/株、1723.4 cm2/株；小苗移栽的地下根部生长前期缓慢而后期较快，采收时产量和经济效益最大，分别达13505.85 kg/hm2，16207.02元/hm2；中苗移栽生长最差。蒙古黄芪小苗移栽成本低、产量高、效益好，大苗移栽地上部分生长较好，有利于留种田的生产。

Comparative Study on Grade Transplanting of Astragalus membranaceus Seedling

The aim was to explore the effect of grade transplanting of seedlings on yield and growth of Astragalus membranaceus to provide theoretical basis on GAP. The under- and above-ground parts growth was measured and analyzed by using fixed-point follow-up observations. The grade transplanting had great effect on its yield and growth development. The stem size, stem branch and leaf area of big seedlings transplanting were the biggest comparing with other treatments, was 4.84 mm, 14.69, 1723.4 cm2 per plant, respectively. The roots grew fastest in later growth stage when transplanting small seedlings, yielding 13505.85 kg/hm2 and making the best economic benefit 16207.02 yuan/hm2. The growth of medium seedling was the best. Transplanting of small seedlings provided better eco-benefit and more yield, and with its lower cost. The ground part grew better, and conducive to production stay in farming.