林业科学2012，Vol.48Issue(8)：135-142,8.
国外容器苗质量调控技术研究进展
A Review on the Abroad Studies of Techniques in Regulating Quality of Container Seedling
摘要
Abstract
In recent years, afforestation shifted from land suitable for afforestation to the harsh sites asks for a higher quality of seedlings to overcome the environment stress. It is essential to review the late decade abroad advances in intensive container seedlings culture for applying the techniques to forest restoration in stressful sites in China. This paper summarized current techniques such as exponential fertilization, fall fertilization, subirrigation, short-day treatments and hot-planting, root pruning, container size, as well as cold storage and thawing. Exponential fertilization has been approved to be more effective because fertilizer is raised progressively to match exponential growth and nutrient demand. Fall fertilization, applied in autumn, can avoid growth dilution of nutrients, which has been successfully applied in many tree species. Plants with subirrigation grow at least as well as their cohorts with overhead irrigation, besides, subirrigation needs less water inputs, and less nitrogen leaching. Field performance of a seedling can be improved by stopping shoot growth in summer with the seedling exposed to short-day treatments, by which the root system growth can be enhanced. Freezer storage of conifer seedlings has become a standard operating procedure for many commercial nurseries, because freezing converts all the free water to ice in the storage container, and thus the development of pathogenic fungi is retarded. This paper prospected future study trends on techniques to promote seedling quality.关键词
指数施肥/秋季施肥/底部灌溉/短日照/冻藏/苗木质量Key words
exponential fertilization/ fall fertilization/ subirrigation/ short-day/ freeze storage/ seedling quality分类
农业科技引用本文复制引用
李国雷,刘勇,祝燕,蒋乐,史文辉..国外容器苗质量调控技术研究进展[J].林业科学,2012,48(8):135-142,8.基金项目
中央高校基本科研业务费专项(JD2011-3,BLJD200905). （JD2011-3,BLJD200905）
