| 贵州西南部中海拔地区水稻平衡施肥及钾肥效应 |
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| 引用本文： | 陈正刚,陆引罡,朱青.贵州西南部中海拔地区水稻平衡施肥及钾肥效应[J].贵州农业科学,2006,34(1):50-52. |
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| 作者姓名： | 陈正刚 陆引罡 朱青 |
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| 作者单位： | 1. 贵州省农业科学院,土壤肥料研究所,贵阳,550006
2. 贵州大学,农学院,贵阳,550025 |
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| 基金项目： | 加拿大国际发展总署(CIDA)资助项目
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加拿大钾磷肥研究所(PPI/PPIC)资助项目 |
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| 摘 要： | 在贵州中海拔地区,采用平衡施肥技术,水稻增产显著,且品质改善。试验结果表明:水稻平衡施肥产量为10.09 t/hm2,较习惯施肥增产33.11%;施钾肥可增产水稻0.88~2.18 t/hm2,增幅为11.13%~22.45%,产投比可达2.4~4.2。在中海拔地区,水稻施氮264 kg/hm2,磷(P2O5)243 kg/hm2,钾(K2O)225 kg/hm2为宜。
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| 关 键 词： | 中海拔地区 水稻 产量 平衡施肥 |
| 文章编号： | 1001-3601（2006）01-0017-0050-02 |
| 收稿时间： | 2005-08-19 |
| 修稿时间： | 2005-08-192005-11-22 |
Balance Fertilization and Potash Applying Effects of Rice in Middle Elevation Area of Southwest Guizhou |
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| CHEN Zheng-gang,LU Yin-gang,ZHU Qing.Balance Fertilization and Potash Applying Effects of Rice in Middle Elevation Area of Southwest Guizhou[J].Guizhou Agricultural Sciences,2006,34(1):50-52. |
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| Authors: | CHEN Zheng-gang LU Yin-gang ZHU Qing |
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| Institution: | 1. Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Gui yang 550006; 2. Agricultural College, Guizhou University, Guiyang 550025, China |
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| Abstract: | The yield and quality of rice can be improved by the balance fertilization method in middle elevation area of southwest Guizhou.The results indicate that the rice yield with balance fertilization is up to 10.09t/hm~(2),2.51t/hm~(2)higher than that of common applying.Applying potash fertilizer can increase 0.88~2.18t/hm~(2),11.13%~22.45% of rice yield and rice quality can also be improved.The ratio of input/output of applying potash fertilizer is about 2.4~4.2.The amounts of N,(P_(2)O_(5)) and K_(2)O applied for rice should be 264kg/hm~(2),243kg/hm~(2) and 225kg/hm~(2) respectively. |
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| Keywords: | middle elevation area rice yield balance fertilization |
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