| 不同施肥水平对毛花雀稗产草量的影响 |
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| 引用本文： | 舒健虹,尚以顺,彭佳.不同施肥水平对毛花雀稗产草量的影响[J].草原与草坪,2007(6):37-39. |
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| 作者姓名： | 舒健虹 尚以顺 彭佳 |
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| 作者单位： | 1. 贵州省草业研究所,贵州,独山,558200
2. 大方县马场镇农技推广中心,贵州,大方,551900 |
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| 摘 要： | 用二次回归旋转组合设计,研究了N、P、K、有机肥对毛花雀稗产草量的影响,建立了试验因素与产草量之间的数学模型,并对模型进行分析。试验结果表明:对毛花雀稗产草量的影响以有机肥最大,其次为N肥和K肥,影响最小的为P肥。其中,尿素用量在388.5~423.0 kg/hm2、钙镁磷肥用量在379.5~439.5 kg/hm2、硫酸钾用量在169.5~198.0 kg/hm2、有机肥用量在29 509.5~32 895.0kg/hm2时,毛花雀稗产量大于48 750.0 kg/hm2,为较适宜的处理组合。
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| 关 键 词： | 毛花雀稗 施肥水平 产草量 |
| 文章编号： | 1009-5500（2007）06-0037-03 |
| 收稿时间： | 2007-04-04 |
| 修稿时间： | 2007-10-15 |
Effects of different fertilization levels on production of Paspalum dilatatum |
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| SHU Jian-hong,SHANG Yi-shun,PEN Jia.Effects of different fertilization levels on production of Paspalum dilatatum[J].Grassland and Turf,2007(6):37-39. |
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| Authors: | SHU Jian-hong SHANG Yi-shun PEN Jia |
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| Abstract: | The trial of effects of N,P,K fertilizers and manure on grass yields of Paspalum dilatatum was carried out by using the quadratic regression combination designing. Mathematical models were established based on the test factors and production data. The results show that the main factor affecting the grass yields of Pas palum dilatatum was manure,then were N,and K,the last affecting factor was P. Among them,when urea was at 388.5-423.0 kg/hm^2 ,Ca,Mg and P at 379.5-439.5 kg/hm^2 ,K2SO4 at 169.5-198.0 kg/hm^2 and manure at 29 509.5- 32 895.0 kg/hm^2 , then the produltion of Paspalum dilatatum could reach to 48 750.0 kg/hm^2. This would be the suitable combination. |
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| Keywords: | Paspalum dilatatum fertilization level grass fresh production |
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