期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2009

35

1

58-60

10.13331/j.cnki.jhau.2009.01.017

云南省烟草公司项目(04A02)；

本校为第一机构

将烤烟品种K326、云85的4叶期烟苗,分别置于以硝酸钠、硫酸铵、尿素、硝酸铵为氮源的营养液中进行培养,研究烤烟品种在漂浮育苗期对不同形态氮素的生长适应能力.结果表明,云85在苗期的长势较强,对营养液中氮素形态较敏感,其生长量从大到小依次为尿素、硝酸铵、硫酸铵、硝酸钠;K326苗期长势相对较弱,对营养液中氮素形态的敏感性相对较弱,其生长量从大到小依次为硝酸钠、尿素、硝酸铵、硫酸铵.表明在漂浮育苗时需要针对不同烤烟品种采用相适应的氮素形态营养液.

4-leave tobacco seedlings of K326 and Yun 85 were cultivated in culture solution with different forms of nitrogen： NaNO3, （NH4）2SO4, CO（NH2）2, NH4NO3 in floating-seeding system separately, to study the adaptabilities of the 2 tobacco varieties to the different forms of nitrogen. The results indicated that, Yun 85 grew better than K326 in seedling period and was more sensitive to the any forms of nitrogen. The growth of Yun 85 followed the order CO（NH2）2〉 NH4NO3〉 （NH4）2SO4〉NaNO3. Comparatively, K326 grew less strong in seedling perio...