| 磷肥用量对高羊茅生长的影响 |
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| 引用本文： | 周世力.磷肥用量对高羊茅生长的影响[J].安徽农业科学,2007,35(14):4247-4248. |
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| 作者姓名： | 周世力 |
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| 作者单位： | 江汉大学医学与生命科学学院,湖北武汉,430056 |
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| 基金项目： | 湖北省武汉市科技攻关项目 |
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| 摘 要： | 在武汉地区研究了不同磷肥用量对冷季型草坪草高羊茅（F.arundinaces Schreb.）生长状况和草屑积累量的影响。结果表明：在施用氮、钾肥（氮肥N15 g/m2,氧化钾12 g/m^2）基础上,磷肥能明显促进草坪草分蘖并提高成坪后叶绿素含量,施磷（P2O5）2.5～20.0 g/m^2处理的分蘖数是不施磷对照的2.81～4.32倍,叶片SPAD值比对照高15.8～18.2。草屑积累量和高羊茅总干物质积累随磷肥用量的增加而增加;施磷2.5～10.0 g/m^2范围内,地下部干物重也随施磷的增加而增加,继续提高磷肥用量有下降的趋势。在试验地力条件下新植高羊茅的磷肥（P2O5）用量以5～10 g/m^2范围为宜。
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| 关 键 词： | 高羊茅 磷肥 草坪生长 推荐施肥 |
| 文章编号： | 0517-6611（2007）14-04247-02 |
| 收稿时间： | 2007-03-01 |
| 修稿时间： | 2007-03-01 |
Effect of Phosphorus Fertilizer Application Rates on the Growth of Tall Fescue |
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| ZHOU Shi-li.Effect of Phosphorus Fertilizer Application Rates on the Growth of Tall Fescue[J].Journal of Anhui Agricultural Sciences,2007,35(14):4247-4248. |
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| Authors: | ZHOU Shi-li |
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| Institution: | College of Medicine and Life Science, Jianghan University, Wuhan, Hubei 430056 |
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| Abstract: | An experiment was conducted in Wuhan region to evaluate the effect of different phosphorus fertilizer application rates(0,2.5,5.0,10.0,20.0 g P2O5/m2) on the growth and clipping biomass weight of tall fescue.Result indicated that on the basis of applying N(N,15 g/m2) and K(K2O,12 g/m2),P could increase tiller ability significantly by 2.81~4.32 times compared with control group.Leaf SPAD increased by 15.8 ~ 18.2.Leaf clippings and plant biomass weight improved significantly with the increase of P application rate.The root biomass increased with P application rate in 2.5~10.0 g P2O5/m2 but decreazed.When P fertilizer application over 10.0 g P2O5/m2.It was concluded that appropriate P application rate for new plated tall fescue was 5 ~10 g P2O5/m2 according to this experiment. |
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| Keywords: | Tall fescue(Festuca arundinacea Schreb) Phosphorus(P) Turf growth Fertilization recommendation |
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