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珍贵树种—裂叶榆育苗技术的研究*
引用本文:邹学忠,阎忠林.珍贵树种—裂叶榆育苗技术的研究*[J].林业科学研究,1992,5(2):182-187.
作者姓名:邹学忠  阎忠林
作者单位:辽宁省林业科学研究院 (邹学忠),辽宁省林业科学研究院(阎忠林)
基金项目:辽宁省科委1982年下达的“珍贵国叶树种研究”攻关课题的一部分
摘    要:

关 键 词:珍贵树种  裂叶榆  育苗
收稿时间:7/7/1991 12:00:00 AM

Techniques for the Seedling Culture of Ulmus laciniata
Zou Xuezhong and Yan Zhonglin.Techniques for the Seedling Culture of Ulmus laciniata[J].Forest Research,1992,5(2):182-187.
Authors:Zou Xuezhong and Yan Zhonglin
Institution:Liaoning Provincial Academy of Forestry
Abstract:Ulmus laclnlata Mayr. is a precious broadleaf timber tree species in north-east of China. In the paper, on U. laciniata, procedure of pregermination, sowed norm, retaining seedling density, fertilization,etc. were studied comprehensively and systematically. The results indicated that germination rate of fresh sand-mixed seeds in grean house is 47.6 %. If the seeds are not pregerminated, its germination rate is 13.6 %. The suitable amount of fresh seeds or air-dried seeds for sowing is 315~375 kg/ ha or 90~150 kg/ha respectively. The best retaining seedling density is 0.36 million seedling/ha. The techniques of raising seedlings of U. laciniata characterized by low cost and more economical benefit.
Keywords:precious tree species  Ulmus laciniata  techniques of raising seedling
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