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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (12): 31-35.

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

不同硫酸铝施用条件下对苏打盐碱地水稻吸肥规律的研究

马巍 王鸿斌 赵兰坡   

  • 收稿日期:2011-01-05 修回日期:2011-03-16 出版日期:2011-05-25 发布日期:2011-05-25

Research on Soda Saline-Alkali Soil Rice Absorb Fertilizer Rule in Conditions of Different Aluminum Sulfate Apply

  • Received:2011-01-05 Revised:2011-03-16 Online:2011-05-25 Published:2011-05-25

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摘要：

通过对苏打盐碱地水稻施用硫酸铝改良剂的研究，阐明了不同硫酸铝施用量对水稻氮、磷、钾素营养吸收及产量的影响。试验结果表明，在重度盐碱化稻田上，施用硫酸铝可使水稻对氮、磷、钾的吸收量增加，水稻吸收养分能力分别提高40%、100%、40%。吸磷量增加最明显。其中吸氮量、吸磷量最大值均出现在成熟期。不同硫酸铝施用量对水稻吸收养分的影响无规律性。但在硫酸铝施用量为300 kg/hm2的情况下，水稻产量可较不施用硫酸铝处理增加近8倍，是盐碱地水稻产量最大时硫酸铝的施用量。盐碱地稻田土壤供肥能力较低，氮肥分次施用是提高其利用率的重要措施，也是提高产量的重要保障。硫酸铝的施用提高了磷肥的利用率，因此，今后在盐碱地水稻种植中一定要注意改良剂硫酸铝的合理投入并不断加强对硫酸铝施用量有效性的研究。

关键词: 流转, 流转

Abstract:

The text of soda saline-alkali soil rice apply to the improvement of aluminum sulfate which the study, the effects of the different aluminum sulfate use level to rice absorb N, P and K nutritional and rice production. The experiment results showed that the soda saline-alkali in the rice fields which to apply for aluminum sulfate, rice absorbing capacity of the N, P and K fertilizer increased. The P increased the most obvious. The maximum value of rice absorbed N and P content in the mature period. There was no laws about the different to use level of aluminum sulfate to rice absorb nutrition. In the condition of aluminum sulfate used level for 300 kg/hm2, the rice production highest. The soda saline-alkali soil provided for fertilizer a low ability. In this fertilizer nitrogen the time was to improve the utilization rate apply to the important measures to increase the output was also an important guarantee. Aluminum sulfate application of increase apparent P recovery rates. In the rice grown in soda saline-alkali soil attention should be improved with aluminum sulfate reasonable application and strengthen the effectiveness of the study in the future.