| 氮磷配施对生长1年苦参的影响 |
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| 引用本文： | 张守润.氮磷配施对生长1年苦参的影响[J].草业科学,2010,27(1):124-129. |
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| 作者姓名： | 张守润 |
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| 作者单位： | 甘肃农业职业技术学院,甘肃,兰州,730020 |
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| 基金项目： | 甘肃省科技攻关项目(2GS064-A43-019-08) |
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| 摘 要： | 纯氮(N)施用量设0(对照)、38、75、113kg/hm24个水平,磷(P2O5)施用量设0(对照)、23、45、90kg/hm24个水平,二因素随机区组设计,研究氮、磷对苦参Sophora flavescens苗生长的影响以及二者的互作效应。结果显示:氮、磷对生长1年苦参生长有显著促进效应,氮和磷互作效应显著。高施氮量(113kg/hm2)和低施磷量(23kg/hm2)配合时根芽数、苗鲜质量、根鲜质量、根干质量、茎叶鲜质量、茎叶干质量最高,依次较对照增加95.6%、57%、57.6%、50.6%、60.1%和41.5%(P0.05),中低施氮量(38和75kg/hm2)与较高施磷量(45kg/hm2)配合时次之,与对照差异显著;根干鲜比和根干质量/总干质量在各施氮量下随施磷量增加;施氮量113kg/hm2和施磷量23kg/hm2配合时根直径和木部直径最大,较对照增加24.9%、20.2%(P0.05);氮和磷对皮部厚度增加效应不显著;施氮量113kg/hm2和施磷量23kg/hm2配合时单株小叶数、小叶面积和单株叶面积最大,分别较对照增加37.6%、40.2%和83.9%(P0.05)。结果表明:氮、磷对生长1年苦参的生长有显著促进效应,氮磷互作效应也均达显著水平。施氮量113kg/hm2与施磷量23kg/hm2配合、施氮量38和75kg/hm2与施磷量45kg/hm2配合时能获得较高苦参苗产量,是生长1年苦参适宜的施肥量。
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| 关 键 词： | 氮磷 苦参 生物量 生长 |
Effect of nitrogen and phosphorus on one year old Sophora flavescens |
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| ZHANG Shou-run.Effect of nitrogen and phosphorus on one year old Sophora flavescens[J].Pratacultural Science,2010,27(1):124-129. |
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| Authors: | ZHANG Shou-run |
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| Institution: | Gansu Agricultural Vocational and Technical College;Gansu;Lanzhou 730020;China |
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| Abstract: | The experiment was conducted to study the effect of nitrogen(N) and phosphorus(P) on one year old Sophora flavescens. The four levels of N were set up as 0(control),38,75,113 kg/hm2 and four levels of P(P2O5) were set up as 0(control),23,45,90 kg/hm2 in a two factor randomized block design field test. Results showed that there were significant stimulated effects of nitrogen and phosphorus on growth of annual S. flavescens,and the interactions of N and P were significant. The bud numbers,plant fresh weight,r... |
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| Keywords: | nitrogen and phosphorus Sophora flavescen biomass growth |
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