| 章倩,王登峰,魏志远,漆智平.氮磷对农田土壤pH 及有机质含量影响的研究[J].广东农业科学,2013,40(16):67-68 |
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氮磷对农田土壤pH 及有机质含量影响的研究 |
| Effed of different N, P application amounts soil pH and contents of organic matters on in paddy soil |
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| DOI： |
| 中文关键词: 酸化 水稻土 氮 磷 有机 |
| 英文关键词: acidification paddy soil nitrogen phosphorus organic matters |
| 基金项目: |
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| 中文摘要: |
| 为揭示氮、磷施用水平对土壤pH 值和有机质含量的影响，以海南水稻土为研究对象，采用水稻盆栽试验分析不同氮磷处理水平下的土壤pH值和有机质含量变化，以期为海南的合理施肥提供参考。结果表明：施用尿素和过磷酸钙，总体上会降低土壤pH，导致农田土壤酸化，且土壤酸化程度与其初始土壤pH 值有关；适当的施用氮、磷、可提高土壤有机质含量，在供试条件下，对于pH较低的土壤，N2P2处理下的土壤有机质含量提高最为显著，而pH较高的土壤，N1P3 处理下土壤有机质含量增加显著。质 |
| 英文摘要: |
| To explore the effects of N and P application amounts on soil pH and organic matters contents, the soil pH and contents of organic matters were determined applying different amounts of nitrogen and phosphorus. The result showed that the application of nitrogen and phosphorus reduced the soil pH, thus leading to soil acidification, and the degree of soil acidification was determined by soil pH.Appropriate application of nitrogen and phosphor increased the contents of soil organic matters. For the soil, with lower pH, the treatment of N2P2 coulld increase the soil organic matters contents significantly, while the N1P3 was the most significant treatment for the soil with higher pH value. |
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