铁肥及其不同施用方法对缺铁失绿芒果叶片铁素含量的影响

对因土壤遭受碱害而导致缺铁的芒果植株进行不同铁肥和施肥方法试验,结果表明:施用0.3%硫酸亚铁和0.2%氨基酸铁溶液均能不同程度提高缺铁芒果叶片活性铁和总铁的含量,其效果相近;根系输液,树干高压注射方法增加叶片活性铁﹑总铁含量,其次是树冠喷施法,三者效果都极显著地高于对照。而断根土壤浸施的效果最差,甚至低于对照。

The Effect of Iron Content and Applied Methods on Leaves with Iron-Deficiency of Mango

Experiments of iron fertilization and application on mango tree with iron-deficiency caused by alkaline earth were conducted.The results indicated that both 0.3% of FeSO4 and 0.2% of N-F Fe solution could increase the amount of active iron and total iron in mango leave,their results are similar.There are several ways to increase the amount of active iron and total iron like drop irrigation through root system and trunk injection under high pressure,besides,spray from the crown which are all much better than that of under control.In tested methods,soaking cut roots has no significant effect.