| 苗木晚季施肥研究现状与展望 |
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| 引用本文： | 魏红旭,徐程扬,马履一,江俐妮. 苗木晚季施肥研究现状与展望[J]. 林业科学, 2011, 47(7) |
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| 作者姓名： | 魏红旭 徐程扬 马履一 江俐妮 |
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| 作者单位： | 北京林业大学省部共建森林培育与保护教育部重点实验室 北京100083 |
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| 基金项目： | 国家林业局“十一五”科技攻关项目(2006BAD24B01) |
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| 摘 要： | 苗木的晚季施肥技术是以克服晚季养分稀释为目的,待苗木顶芽形成后进行的施肥措施。研究发现,晚季施肥可以有效克服养分稀释,提高苗木硬化水平和抗寒能力,促进苗木移栽后生根、苗木生长,提高养分吸收水平和造林成活率,并使移栽苗木提前发芽。前人对于晚季施肥的研究大多以氮素为主,有关晚季施入钾素对苗木抗寒性的影响存在争议,有关晚季施入其他元素的报道相对较少。大部分晚季施肥采用少次施肥,或每次添加相等养分的施肥方式。以稳态养分承载方式进行的晚季施肥被证明可以显著促进苗木晚季养分吸收。
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| 关 键 词： | 晚季施肥 养分元素 苗木生长 苗木生物量 苗木抗寒性 |
Current Development and Prospect on Late-Season Fertilization to Tree Seedling |
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| Wei Hongxu,Xu Chengyang,Ma Lüyi,Jiang Lini. Current Development and Prospect on Late-Season Fertilization to Tree Seedling[J]. Scientia Silvae Sinicae, 2011, 47(7) |
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| Authors: | Wei Hongxu Xu Chengyang Ma Lüyi Jiang Lini |
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| Affiliation: | Wei Hongxu Xu Chengyang Ma Lüyi Jiang Lini (Key Laboratory for Silviculture and Conservation of Ministry of Education & Beijing City,Beijing Forestry University Beijing 100083) |
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| Abstract: | Late-season fertilization(LSF), which is developed for preventing nutrient dilution during seedling hardening, is usually performed after the establishment of seedling apical bud. It has been found that late-season nutrient dilution can be alleviated by LSF. Seedling hardening, new root growth, growth, nutrient uptake, and survival after planting could be enhanced by LSF. Also, bud break might be advanced as well. However, most previous reports on LSF focused on fertilizer of nitrogen, whereas the effect of... |
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| Keywords: | late-season fertilization seedling nutrient nitrogen phosphorus potassium |
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