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OALib Journal期刊
ISSN: 2333-9721
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油松容器苗生长和氮吸收对指数施肥的响应
DOI: 10.3969/j.issn.1000-2006.2013.03.005, PP. 23-28
Keywords: 油松,容器苗,指数施肥,苗木质量
Abstract:
采用指数施肥方式,对油松容器苗设置7种施n肥处理(10、20、40、60、80、100、120mg/株),进行25次施肥,研究施肥量对油松苗木质量的影响。结果表明:施n肥量为100mg/株时,苗木生物量、氮含量、顶芽粗、叶原基数、地径、苗高、合格苗率均达到最大,施n肥量增至120mg/株时,地径、叶原基数较100mg/株处理显著下降。施肥量小于60mg/株时,油松容器苗合格率达不到国标要求,且主要因苗高不足造成。
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