我们结合青岛市土壤普查采集的土样,进行了微量元素有效含量测定和微肥肥效试验。现将结果整理如下。研究方法硼用姜黄比色法,钥用硫氰化钾比色法,锌、锰、铜、铁采用DTPA浸提后,用原子吸收分光光度计测定。 We combined with soil samples collected from Qingdao Soil Survey, the effective content of trace elements and fertilizer test. The results are now organized as follows. Research methods Boron by turmeric colorimetric method, the key with potassium thiocyanate coloring method, zinc, manganese, copper, iron using DTPA leaching, measured by atomic absorption spectrophotometer.