摘要
塑料大棚育苗是快速培育楸树苗木的有效措施之一。试验表明：幼苗可提前20d以上出苗，出苗延续时间缩短6～9d；种子发芽出苗和幼苗生长的最适温度分别为18～19．2℃和25～29％；产苗量以不超过9万株/hm^2为宜；投入与产出比为1：3．8～4．8，投资回收期短，经济效益显著。
The plastic greenhouse is one of the effective measures for fast reproduction of catalpa bungei Seedlings. The experiment indicated that the seedlings of catalpa bungei emerged about 20 days earlier in plastic greenhouse and the duration of emergence was shortened 6 -9 days. The optimal temperature of seed sprouting and young seedling growing was 18℃ 19.2℃ and 25 -29℃, respectively. The quantity of seedlings produced should not be more than 90 000 per hectare. The ratio of imput and output was between 1 ： 3.8 and 1：4.8 with a fast return of invests. Therefore, this technique had a remarkable economic benefit.
出处
《林业科技开发》
2009年第1期113-116,共4页
China Forestry Science and Technology
基金
安徽省林业厅重点科研课题“楸树快繁与丰产栽培技术研究”项目(编号:林科函[2006]15号)
关键词
楸树
塑料大棚
播种育苗
产投比
Catalpa bungei
Plastic greenhouse
Seedling from seeds
The ratio of producing to investing
