【摘要】 为探索适合在基层推广使用的土壤养分速测方法,采用3种速测方法和常规分析法对10种不同类型的土壤样品的铵态氮、硝态氮、速效磷、速效钾、pH进行测定。结果表明:YN-2 000速测仪测定结果能够反映测定样品的养分含量及变化情况。在3种速测方法中,YN-2 000速测仪的测定结果变异系数较小,可在测土配方施肥中推广应用。更多还原

【Abstract】 The ammonium nitrogen,nitrate nitrogen,available N,available P,available K and pH of ten kinds of soil samples were determined by three rapid measure methods and conventional analysis method to explore the suitable soil nutrient rapid measure equipment for popularization and utilization in grass-roots units.The results showed that the measure results by using YN-2000 rapid determination meter could reflect the nutrition content and its change situation.And the variation coefficient of the measure results by using YN-2000 rapid determination meter was the smallest among the 3 rapid measure methods.The YN-2000 rapid determination meter can be popularized and applied in soil testing and formulated fertilization.更多还原