| 根系分泌物在植物磷营养中的作用 |
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| 引用本文： | 田中民.根系分泌物在植物磷营养中的作用[J].咸阳师范学院学报,2001,16(6):60-63,69. |
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| 作者姓名： | 田中民 |
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| 作者单位： | 西安交通大学生命科学与技术学院,陕西,西安,710049 |
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| 摘 要： | 植物磷营养一直是影响我国农业高产的主要限制因素，增施磷肥是一种“高投入、低产出”的途径，不仅会引起资源枯竭，成本增加，而且经济效率下降，环境污染加重。如何解决磷营养问题，既能保持作物高产优产又能保持环境一直是世界各国植物营养学和植物学工作者苦苦思考的问题。近年来，随着生物技术的迅猛发展，根际微生态系统物质循环的研究，人们对植物利用土壤潜在养分的基因型差异的本质认识也越来越深入，特别是对根系分泌活化土壤磷的研究有了一些新的进展，为土壤磷营养问题的解决提供了新的思路。本文对植物根系分泌物活性土壤磷以及提高土壤磷利用率的研究做一总结和回顾。
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| 关 键 词： | 分泌机制 根系分泌物 磷营养 有机酸 植物 磷肥 利用率 缺磷协迫 激素 |
| 文章编号： | 1008-7591(2001)06-0060-04 |
The Advance on Nutrient of Phosphorus of Plant |
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| Tian Zhongmin.The Advance on Nutrient of Phosphorus of Plant[J].Journal of Xianyang Normal University,2001,16(6):60-63,69. |
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| Authors: | Tian Zhongmin |
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| Abstract: | The Nutrition of Phosphorus has been the main factor limited the output and quality of agriculture product in our country .It will cost more money to use the phosphorus fertilizer ,and the efflux of phosphorus with the water will pollute the surroundings .Unfortunately the resource of phosphorite is running out day after another .How can we solve the problem? With the rapid development of biotechnology and molecular biology , much reach work had been done in this do main ,such as the essential knowledge on gene type of different plant which have the different ability to utilize the non-available phosphorus had been gotten . and the big step of advance on studying of excidation of plant root had been gotten too. In this article , we review the advance of plant root exudation on improving the available of phosphorus in the soil . |
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| Keywords: | exudation of plant root nutrition of phosphorus organic acid |
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