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当前桉树造林,除利用小苗直接上山造林外,大多用2—3个月生的播种苗进行换床移植,培育大苗,以供应群众四旁绿化和公路绿化的需要。桉树移植育苗,在一定的育苗技术和圃地自然条件下,苗木品质的好坏和产量的高低与苗木移植密度有很大关系。目前生产上采用的密度很不统一,少的二千多株,多的五、六千株甚或一万余株。为了探索桉树不同移植密度与苗木品质的关系,研究在单位面积上既能达到一定的质量要求,又能获得最大经济效益的适宜密度,我们于1983年进行了桉苗不同移植密度的比较试验,现将结果整理如下。
The current eucalyptus afforestation, in addition to the use of plantlets directly up the mountain afforestation, mostly with 2-3 months of sowing seedlings for bed exchange, nurturing large seedlings, to provide the public around the greening and road needs. Eucalyptus transplant nursery, nursery and nursery in a certain degree of natural conditions, the quality of seedlings and the level of yield and seedling transplantation density has a great relationship. At present, the density used in production is not uniform, less than 2,000 strains, more than five or six thousand or even ten thousand strains. In order to explore the relationship between the different transplanting density and seedling quality of eucalyptus and to study the suitable density which can not only achieve certain quality requirements but also maximize the economic benefit per unit area, we carried out comparative experiments on the transplanting density of eucalyptus seedlings in 1983, The results are now organized as follows.