影响橡胶树容器苗缺铁黄化的因素及矫正技术

摘要

对影响橡胶树容器苗缺铁黄化的几个因素进行了研究,并使用不同补铁方法对缺铁黄化进行矫正效果比较。结果表明：缺铁黄化全年均可发生,以高温季节发生严重;培养土配方塘泥/园土=1/4（V/V）能减轻黄化;砧穗组合东方93-114/云研77-4对缺铁最敏感;使用0.2%螯合铁灌根矫正效果较好。%By means of studying the main factors causing iron deficiency chlorosis and comparing the remedy effects of different ion preparations on rubber tree container seedlings.The results showed that iron deficiency chlorosis can occur in the whole year and reach peaks during high temperature season.The effects of the various iron preparations were different.The nutritive soil recipe for cultivation of rubber tree container seedlings was the components of pond sludge/garden soil=1/4 can reduce the etiolation;Rootstock-scion combinations of DongFang 93-114/YunYan77-4 was most sensitive to iron deficiency;The chelating iron for irrigating roots was much better than others.