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红松幼树生长缓慢,如何加速红松幼树的早期生长是当前人们关注的一个极为重要的课题.本文的目的是阐述根、茎、叶对红松幼树新梢高生长的作用,以便找出影响高生长的关键器官,为进一步研究打下基础.一、试验材料与方法在伊春林科院实验站的红松人工幼林(7年生)内、选取生态条件相同,80—90厘米高的幼树20株,作为研究对象.林地条件是:东坡、中部10度,土壤为暗棕壤、无上方遮荫.研究方法:采用环剥与摘除针叶或者二者相结合的方法,分析根、茎、叶三大器官对新梢生长的作用,处理方法如
The growth of young Korean pine is slow and how to accelerate the early growth of young Korean pine is an extremely important issue that people pay attention to.The purpose of this paper is to explain the effect of root, Find out the key organs that affect high growth, and lay the foundation for further research.First, the experimental materials and methodsIn Yichun Academy of Forestry Experimental Station korean pine plantation (7 years), select the same ecological conditions, 80-90 cm high Of the 20 young trees, as the study object.The woodland conditions are: the east slope, the central 10 degrees, the soil is dark brown soil, no shade above.Research methods: Girdling and removal of needles or a combination of the two methods, Analysis of roots, stems and leaves of three organs on the growth of shoots, treatment methods such as