【作者】 宋晓东； 王恩利； 徐贵军； 陈江燕； 孙海红；

【Author】 Song Xiaodong, Wang Enli, Xu Guijun, Chen Jiangyan, Sun Haihong(Liaoning Institute of Sand-fixation and Afforestation, Fuxin 123000)

【机构】 辽宁省固沙造林研究所；

【摘要】 试验发现,在沙地樟子松人工林中追施锌肥对林木的生长与健康状况有显著影响。不过,不同林龄阶段的树木反应不一样。对10a生左右的幼林,施锌肥没有什么正面作用。随着林龄的增加,锌肥对树木生长和健康的促进作用得以显现。对20a生左右的林分,可用0.2%硫酸锌水溶液喷洒树冠。对20～30a的林分,可土壤追施硫酸锌50～100g/株。镀锌钉可减轻松枯梢病的危害且效果持久,对20a生以上的林木,每株用3个镀锌钉为佳。更多还原

【Abstract】 It was found that fertilization with zinc in plantation affected the growth and health of Pinus sylvestris var.mongolica in sandy area.However, trees of different ages responded differently.There was no positive effect on trees around 10 years old.With the increase in tree age, the positive effects of zinc on tree growth and health were gradually shown.For trees around 20 years old, 0.2% solution of zinc sulfate can be sprayed to crown.For those between 20 and 30 years old, zinc sulfate 50 to 100 g per tree can be applied to soil.Galvanized nails had lasting effect on reduction of Sphaeropsis shoot blight of the pine.It is suggested to apply three galvanized nails per tree for trees over 20 years old.更多还原