摘要
根域限制这一新技术的原理是将根系置于一个可控的范围内,通过控制根系生长来调节地上部和地下部、营养生长和生殖生长的关系。已在葡萄、桃和柑橘等近10种果树上开展了试验研究,几乎所有的实验都肯定了抑制幼树营养生长、促进早期花芽形成和提高果实品质的效果。葡萄根域限制技术基本成熟,适宜的根域容积是每平方米树冠投影面积50L,并确立了适宜的土壤水分管理和营养液供给技术,但其他果树植物根域限制的应用技术还不完备。综合有关文献就根域限制的概念、形式、迄今为止的研究进展和存在的问题作简要探讨。
Rooting-zone restriction (RZR) is a new technique of fruit cultivation. The principle of which is based on the fact that vegetative growth and reproductive growth of fruit trees could be regulated by restricting root system growth. Effects of the technique have been studied in more than 10 fruit-tree species, such as grapevine, peach and citrus. Almost all experiments showed that RZR had significant effects in inhibiting vegetative growth and improving flower-bud formation and fruit quality. For grapevine, the optimal rooting-zone volume has been determined to be 25 L per square meter of leaf area and the related techniques in managing moisture of the soil and nutrition supply have also been worked out. But management of soil moisture and nutrition for most fruit trees is not yet clear. Concept, forms, mechanism and problems in RZR are also discussed in this article.
出处
《果树学报》
CAS
CSCD
北大核心
2002年第5期298-301,共4页
Journal of Fruit Science
基金
国家自然基金(批号:30170647)
