应用铁-59研究了黄腐酸对植物吸收铁及其运转的影响。土培或砂培的试验结果如下。1.黄腐酸能促进根系对铁的吸收,并促进铁向叶部运转。2.黄腐酸能促进叶片对铁的吸收,并促进铁在叶片内移动。3.黄腐酸铁复合物中添加适量尿素能进一步促进叶片对铁的吸收。 Iron-59 was used to study the effects of fulvic acid on plant uptake of iron and its operation. Soil culture or sand culture test results are as follows. 1. Fulvic acid can promote root absorption of iron and promote the operation of iron to the leaves. 2. Fulvic acid can promote leaf iron absorption, and promote the movement of iron in the leaves. 3. Fulvic acid iron complex to add an appropriate amount of urea can further promote leaf iron absorption.