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土壤有效硼是决定土壤供硼能力的重要指标，目前中国多以沸水浸提土壤，并用姜黄素比色测硼值作为作物硼营养丰缺诊断指标．但在长期实践中，发现作物硼营养状况与热水溶性硼的相关性不稳定，同时测定值重现性不良。为提高作物硼营养诊断和预测的准确性，本研究通过０．０１ｍｏｌ／ＬＣａＣｌ２在２６０℃、３５ｍｉｎ浸提土壤条件下，用甲亚胺比色与沸水浸提，姜黄素比色法测定土壤有效硼的对比研究，证明甲亚胺法测定结果稳定，操作方法简便，适用于低硼土壤的大批量试样的自动分析。为甲亚胺测硼方法的推广应用，本研究已研制甲亚胺粉状试剂获得成功，与进口甲亚胺比较，性能完全一致。
Soil available boron is an important indicator of soil boron supply capacity. At present, most of the soil is leached with boiling water in China, and the boron value of curcumin is used as a diagnostic index of crop boron nutrition abundance. However, in the long-term practice, it has been found that the correlation between crop boron nutrition status and hot-water-soluble boron is unstable and the reproducibility of measured values is poor. In order to improve the accuracy of crop boron nutrition diagnosis and prediction, the soil samples were extracted with 0.01 mol / L NaCl at 260 ℃ for 35 min, and the soil samples were extracted with azomethicone, boiling water and curcumin colorimetric method Boron comparison study proves that the determination result of azomethine is stable and the operation method is simple. It is suitable for the automatic analysis of large quantities of samples in low boron soil. For the promotion and application of the boron method of azomethine, this research has been successful in the research of azomethine powdery reagent, which is completely consistent with the imported azomethine.