刘建中, 李振声, 李继云. 利用植物自身潜力提高土壤中磷的生物有效性[J]. 中国生态农业学报(中英文), 1994, 2(1): 16-23.
引用本文: 刘建中, 李振声, 李继云. 利用植物自身潜力提高土壤中磷的生物有效性[J]. 中国生态农业学报(中英文), 1994, 2(1): 16-23.
LIU Jian-zhong, LI Zhen-sheng, LI Ji-yun. Utilization of Plant Potentialities to Enhance the Bio-efficiency of Phosphorus in Soil[J]. Chinese Journal of Eco-Agriculture, 1994, 2(1): 16-23.
Citation: LIU Jian-zhong, LI Zhen-sheng, LI Ji-yun. Utilization of Plant Potentialities to Enhance the Bio-efficiency of Phosphorus in Soil[J]. Chinese Journal of Eco-Agriculture, 1994, 2(1): 16-23.

利用植物自身潜力提高土壤中磷的生物有效性

Utilization of Plant Potentialities to Enhance the Bio-efficiency of Phosphorus in Soil

  • 摘要: 土壤缺磷是世界范围内普遍存在的问题,它严重限制了作物的产量及分布。随着人口增长对粮食需求的不断增加以及由此引起的能源危机,这种趋势还将会不断加重。因此,如何通过发掘植物自身潜力,减少土壤对磷酸盐的固定、吸附以提高植物对磷肥的利用效率及活化被土壤固定的磷,这对提高粮食产量、降低生产成本以及保护生态环境将起到重要作用。本文阐述了提高土壤中磷的生物有效性的必要性和可能性,综述了植物磷素营养特性差异的机理及遗传研究进展,旨在为培育磷肥利用效率高,活化土壤磷能力强的耐低磷作物新品种提供有关信息及理论依据。

     

    Abstract: Phosphorus defficiency,which seriously limits yields and distribution of crops,is a problem extensively existing in soils around the globe.The tendency of P-defficiency will be aggravated by both the ever increasing requirements for grains and energy crisis caused by population explosion in the world.Therefore,how to improve the efficiency of P-fertilizer and to mobilize the P absorbed and fixed in soil through developing the potentialities existing in plants will play an important role in improving grain yields,reducing production costs and protecting eco-environment.In this paper possibility of enhancing the bioefficiency of P is discussed and mechanisms and genetic studies of the differences in P nutrient characteristics of plants are also reviewed for the pourpose of providing theoretical basis for breeding new varieties which can efficiently utilize P fertilizer and tolerate P-defficiency.

     

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