凤城山区麻栎平床垄播育苗密度试验

Experiment of Seedling Density of Nursing Quercus acutissima with Ridging Planting on Level Bed in Fengcheng Mountains

通过对麻栎平床垄播育苗密度试验研究,结果表明：播种量的大小对麻栎苗高生长影响不大,对地径生长量影响较大,最终对Ⅰ级苗率的影响最大;选取播种量900.9～1 201.2kg？hm-2较为科学合理;麻栎育苗前期要注重氮、磷、钾肥的配合使用,中期需要增加氮肥的施用量,后期要注重磷、钾肥的施用量,以增加苗木木质化,立秋后做好防止徒长管理工作。

Quercus acutissima by ridge sowing on level bed seedling were studied .Result shows that ：the size of the seeding rate ,which have little influence on the height growth of Quercus acutissima ,have greater influence on growth of ground diameter ;the size of the seeding rate have the greatest influence on survival rate of stage Ⅰat last ;seeding rate being 900 .9-1 201 .2 kg hm-2 is more scientific＆amp; rational ;early period for seedling-raising Quercus acu-tissima ,nitrogen ,phosphorus ,potassium are used together ;in middle period applying amount of nitrogen should be increased ;phosphorus ,potassium should be paid attention to increase the lignification of seedlings .Leggy-prevented management work should be well done in the beginning of autumn .