| 不同施肥条件下巴西陆稻IAPAR9的养分吸收特性研究 |
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| 引用本文： | 李军民,周清明,唐浩. 不同施肥条件下巴西陆稻IAPAR9的养分吸收特性研究[J]. 佛山科学技术学院学报(自然科学版), 2003, 21(1): 60-63 |
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| 作者姓名： | 李军民 周清明 唐浩 |
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| 作者单位： | 湖南农业大学,研究生处,湖南,长沙,410128;湖南农业大学,湖南,长沙,410128;农业部科技发展中心,北京,100026 |
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| 摘 要： | 巴西陆稻植株在移栽期——分蘖盛期的氮、磷、钾吸收量较少，分别占其吸收总量的17．1％，12．8％，13．0％，在分蘖盛期——孕穗期氮磷钾吸收量比重最大，分别占其吸收总量的50．1％，53．7％，48．7％左右。氮、磷、钾用量与土壤碱解氮、有效磷、速效钾，以及植株氮、磷、钾吸收总量呈极显著正相关，氮肥用量与植株钾素吸收总量亦呈极显著正相关。在中氮、磷、钾水平下，吸肥优势明显，物质生产效率较高。
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| 关 键 词： | 巴西陆稻 养分吸收特性 施肥 |
| 文章编号： | 1008-0171(2003)01-0060-04 |
| 修稿时间： | 2002-11-08 |
Studies on the main nutrition absorptional characteristics of Brazilian upland rice IAPAR9 under different fertilization condition |
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| LI Jun min ,ZHOU Qing ming ,TANG Hao. Studies on the main nutrition absorptional characteristics of Brazilian upland rice IAPAR9 under different fertilization condition[J]. Journal of Foshan University(Natural Science Edition), 2003, 21(1): 60-63 |
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| Authors: | LI Jun min ZHOU Qing ming TANG Hao |
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| Affiliation: | LI Jun min 1,ZHOU Qing ming 2,TANG Hao 3 |
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| Abstract: | N, P, K absorbed by Brazilian upland rice IAPAR9 plant during the transplanting to maximum tillering stage (17.1%, 12.8%, 13.0% in total N, P, K absorbed) were little. The peaks of N, P, K absorbing rate occurred (50.1%, 53.7%, 48.7% in total N, P, K absorbed) during maximum tillering stage booting stage.N,P,K application rates are significantly and positively correlated with AN, AP, AK in soil and with N,P,K absorbed by plants. There is a superiority of N, P, K uptake and high dry matter accumulation at intermediate N, P, K supply levels. |
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| Keywords: | Brazilian upland rice nutritional absorption characteristics fertilization |
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