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为探求纸厂白泥今后在农业生产上的应用提供实验支持,采用土壤培养试验方法,研究施用纸厂白泥对酸性蔗地土壤p H和土壤养分状况的影响。试验结果表明:白泥施用量与土壤的p H、钙、镁、硫、硅、锌及铝、钠等有效含量呈正相关,与铁、磷、钾等有效含量呈负相关;白泥施用量低时可提高有效氮的含量,过高则降低有效氮的含量。因此,施用白泥可改善酸性土壤p H及土壤养分条件,同时应注意增加磷钾肥的施用。
In order to explore the application of Pak Nai in agricultural production in the future, this paper provided experimental support for the application of Pak Nai in the papermaking plant on soil p H and soil nutrient status. The results showed that the application rates of white mud were positively correlated with the contents of p H, calcium, magnesium, sulfur, silicon, zinc, aluminum and sodium in the soil, but negatively correlated with the effective contents of iron, phosphorus and potassium. Low can increase the effective nitrogen content, too high will reduce the effective nitrogen content. Therefore, the application of Pak Nai can improve acid soil pH and soil nutrient conditions, should pay attention to increase the application of phosphorus and potassium fertilizer.