• ISSN 1008-505X
  • CN 11-3996/S
杨建峰, 贺立源, 左雪冬, 刘艳飞, 吴照辉, 章爱群, 赵会娥, 刘伟, 严昶, 门玉英. 不同pH低磷土壤上水稻磷营养特性研究[J]. 植物营养与肥料学报, 2009, 15(1): 62-68. DOI: 10.11674/zwyf.2009.0109
引用本文: 杨建峰, 贺立源, 左雪冬, 刘艳飞, 吴照辉, 章爱群, 赵会娥, 刘伟, 严昶, 门玉英. 不同pH低磷土壤上水稻磷营养特性研究[J]. 植物营养与肥料学报, 2009, 15(1): 62-68. DOI: 10.11674/zwyf.2009.0109
YANG Jian-feng, HE Li-yuan, ZUO Xue-dong, LIU Yan-fei, WU Zhao-hui, ZHANG Ai-qun, ZHAO Hui-e, LIU Wei, YAN Chang, MEN Yu-ying. Phosphorous nutritional characteristics of rice in P-deficient soils with different pH values[J]. Journal of Plant Nutrition and Fertilizers, 2009, 15(1): 62-68. DOI: 10.11674/zwyf.2009.0109
Citation: YANG Jian-feng, HE Li-yuan, ZUO Xue-dong, LIU Yan-fei, WU Zhao-hui, ZHANG Ai-qun, ZHAO Hui-e, LIU Wei, YAN Chang, MEN Yu-ying. Phosphorous nutritional characteristics of rice in P-deficient soils with different pH values[J]. Journal of Plant Nutrition and Fertilizers, 2009, 15(1): 62-68. DOI: 10.11674/zwyf.2009.0109

不同pH低磷土壤上水稻磷营养特性研究

Phosphorous nutritional characteristics of rice in P-deficient soils with different pH values

  • 摘要: 通过盆栽试验,研究了不同磷效率水稻在不同pH土壤和不同磷处理水平下的磷营养特性。结果表明,低磷条件下,分蘖期耐低磷基因型850、1574和1079的磷吸收效率最高,孕穗期3个耐低磷品种磷吸收量和利用效率均较高;到成熟期1574品种的相对磷吸收量最高,达到65%,而相对磷利用效率则以1574和850品种最高。不同pH土壤上,分蘖期,各水稻品种在碱性土壤上磷吸收量和利用效率最低,相对磷吸收量和相对磷利用效率却最高;耐低磷基因型850、1574和1079的磷吸收量高于鄂晚13和敏感基因型99012。在孕穗期,各水稻品种在碱性土壤上的磷吸收量高于其它两种土壤,但相对磷利用效率却最低;耐低磷基因型850和1574在3种土壤上磷吸收量均最高,成熟期各水稻品种磷利用效率则明显高于孕穗期。可见,不同耐低磷基因型在不同pH土壤上表现出的磷营养特性不同,在耐低磷品种的筛选过程中应该考虑土壤pH因素,生产中应根据不同土壤酸度类型选择合适的品种。

     

    Abstract: A pot experiment was conducted to study the P-nutritional characteristics of different P-efficiency rice varieties in P-deficient soils with different pH values. The results indicated that, under low-P stress three low-P tolerant rice 850, 1574 and 1079 had the highest P uptake efficiency at tillering stage. P uptake and P use efficiency of the three low-P tolerant rice were higher than others at booting stage. At maturity stage, the relative P uptake of 1574 reached 65% and was the highest, 1574 and 850 had the highest relative P-use efficiency than others. With different pH values, at tillering stage, the P uptake and P-use efficiency on alkaline soil were the lowest, but the relative P uptake and P-use efficiency on alkaline soil was the highest, and the P uptake of 850, 1574 and 1079 was higher than EW13 and 99012. At booting stage, the P uptake on alkaline soil was higher than the other soils, but the relative P-use efficiency was the lowest, and the P uptake of 850 and 1574 was the highest. The P-use efficiency at maturity stage was significantly higher than at booting stage. This indicated that P-nutritional characteristics of different P-efficiency rice on P-deficient soils with different pH values differed, and soil pH values should be considered in screening rice with different P-efficiencies. It is necessary to choose the right variety for soils with different pH values.

     

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