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中国农学通报

中国农学通报 ›› 2007, Vol. 23 ›› Issue (4): 251-251.

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硅磷混施对褐土无机磷形态的影响

杨 丹,张宝东,李 鑫,马 楠,张慧锦,顾 霞,张 旭,颜 丽   

  • 出版日期:2007-04-05 发布日期:2007-04-05

Effect of Mixing Silicon with Phosphate to the Forms of Inorganic Phosphorus in Drab Soil

Yang Dan, Zhang Baodong, Li Xin, Ma Nan, Zhang Huijin, Gu Xia, Zhang Xu,Yan Li   

  • Online:2007-04-05 Published:2007-04-05

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508

摘要： 采用室内培养的方法，研究了不同配比硅磷混施对褐土无机磷素存在形态的影响。结果显示：在60d的培养期间内，前20d各施磷处理有效磷、Ca2-P含量急剧下降，Ca8-P、Ca10-P、O-P、Al-P、Fe-P含量都有增加趋势；20~60d内，随时间的延长，有效磷、Ca2-P含量下降趋势减缓，Ca8-P、Al-P含量继续增加，O-P、Fe-P含量开始减少，Ca10-P变化不大。硅磷混施各处理与单施磷相比，有效磷、Ca2-P、Fe-P含量均减少；Al-P、O-P含量增加。硅磷混施各处理中，随硅磷比例的增加，有效磷、Ca2-P、Fe-P、Al-P、O-P含量均减少，Ca8-P含量增加，对Ca10-P的影响不大。实验表明：在褐土中，硅磷混施非但不能提高磷素有效性，反而降低其有效性。

关键词: 黄瓜, 黄瓜, 白粉病, 抗性遗传

Abstract: Effect of mixing silicon with phosphate in different proportion on the forms of inorganic phosphorus was studied through cultural experiment in drab soil. The results show: In the day of culture, the translation of the available phosphate and Ca2-P reduces rapidly, but the translation of Ca8-P, Ca10-P, O-P, Al-P, Fe-P increases in the days from 0 to 20. Along with time extension, the drop trend of the content of the available phosphate and Ca2-P slows down, the content of Ca8-P and Al-P continues to increase, the content of O-P and Fe-P begin to drop, the content of Ca10-P does not change. Comparing the treatments of mixing silicon with phosphate in different proportion with the treatments of only phosphate, the content of the available phosphate and Ca2-P and Fe-P decreases. The content of Al-P and O-P increases. In the treatments of mixing silicon with phosphate in different proportion, the raising of the proportion of silicon with phosphate can make the available phosphate and Ca2-P and Fe-P and Al-P and O-P to reduce, the content of Ca8-P increase, and has little effect on Ca10-P. The experiment indicates: mixing silicon with phosphate cannot improve the available of P, but reduce the available in drab soil.

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