| 控释肥料的大蒜肥效研究 |
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| 引用本文： | 李絮花,杨守祥,史衍玺,张民.控释肥料的大蒜肥效研究[J].土壤通报,2003,34(2):120-124. |
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| 作者姓名： | 李絮花 杨守祥 史衍玺 张民 |
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| 作者单位： | 山东农业大学资环学院,山东,泰安,271018 |
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| 基金项目： | 国家"948"项目(批准文号971053)及山东省中青年科学家奖励基金资助 |
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| 摘 要： | 对控释肥料(CRFs)的大蒜肥效进行了田间试验,结果表明:控释肥料与普通肥料(OFs)相比,在肥料施用量低和中等时具有提高肥效、增加产量的作用,大蒜的生物量分别增加80.5%和51.1%,蒜苔和蒜头产量分别增加180%、100%、和69.2%、29.3%,而高用量时产量反而降低;在比普通肥料(300kg/hm2)减少一半用量的情况下,控释肥料(150kg/hm2)处理的大蒜生物量、蒜苔和蒜头产量分别增加15.6%、61.5%和11.6%。经过大蒜的整个生长季,控释肥料处理的根际土壤有效养分仍能维持较高的水平,控释肥料能显著提高大蒜体内的氮磷钾含量及肥料的养分利用率。
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| 关 键 词： | 控释肥料 大蒜 肥效 养分利用率 |
| 文章编号： | 0564-3945(2003)02-0120-05 |
| 修稿时间： | 2001年10月7日 |
Fertilizer Efficiency of Controlled Release Fertilizers(CRFs) for Garlic |
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| Abstract: | The effects of controlled release fertilizers(CRFs) on garlic growth were studied.The results showed:Compared to ordinary fertilizers(OFs),in lower and medium fertilizing amount, controlled release fertilizer can improve the garlic growth,increase the fertilizer efficiency and the biomass of garlic respectively.In 150kg/ha fertilizing amount of controlled release fertilizers, the biomass,stalk and bulb yield was 15.6%,61.5% and 11.6% compared with those of 300kg/ha ordinary fertilizers(OFs).After garlic growing season,the available nutrients in soil rhizosphere can contain higher level. |
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| Keywords: | Controlled release fertilizer(CRFs) Garlic Fertilizer efficiency Nutrient use efficiency(NUE) |
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