研究了河北省农区四种主要土壤类型供钛水平，土壤可液性钛含量范围为０．１２８—２．８０ｍｇ／ｋｇ，平均为０．９４３ｍｇ／ｋｇ。以苜蓿为试验作物进行了生物相关试验，结果表明与土壤可溶性钛含量相关密切，可以反映土壤的供钛状况。试验结果还表明棕壤、褐土、潮土、栗钙土中可溶性钛含量未达到施钛无效应或负效应的水平。 Four major soil types in Hebei Province were studied for the level of titanium, the soil liquid titanium content ranged from 0.128 to 2.80 mg / kg with an average of 0.943 mg / kg. Biological experiments were carried out with alfalfa as the experimental crop, and the results showed that it was closely related to soil soluble titanium content and could reflect the status of titanium supply for soil. The results also showed that the soluble titanium content in brown soil, cinnamon soil, alluvial soil and chestnut soil did not reach the level of no effect or negative effect.