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结合实施测土配方施肥项目,对揭东县稻田土壤肥力和农户施肥状况进行调查分析,结果表明,较第二次土壤普查,稻田土壤有机质和全氮含量有不同程度下降,有效磷含量显著增加,速效钾含量有所提高。有机质和全氮含量处于中等水平,部分存在缺乏趋势;有效磷含量大部分处于较丰富的状态;速效钾含量则大部分处于中下水平,即处于缺乏状态。而农户稻田施肥则存在有机质肥施用意识淡薄,养分投入不均现象。针对稻田土壤养分现状和农户施肥存在问题,建立测土配方施肥技术体系,实施配方施肥,提高科学施肥水平。
Combined with the implementation of soil testing and fertilizer project, the soil fertility of paddy field and the fertilization status of farmers in Jiedong were investigated and analyzed. The results showed that compared with the second soil survey, the content of soil organic matter and total nitrogen in paddy soil decreased to some extent and the available phosphorus content increased significantly , Available potassium content has increased. Organic matter and total nitrogen content are in the middle level, some are lacking trend; most of the available phosphorus content is in a richer state; most of the available potassium content is in the middle or lower level, ie in a deficient state. The fertilization of rice farmers there is weak sense of the application of organic fertilizer, nutrient imbalance in investment. In view of the current status of soil nutrients in paddy fields and farmers’ fertilization problems, the establishment of soil testing and fertilizer technology system, the implementation of formula fertilization and improve the level of scientific fertilization.