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种植在碱性土壤中的黄花梨 ,黄化现象严重 ,轻则新叶转绿缓慢 ,梨果品质下降 ,重则叶片黄化、白化 ,最后全株衰退死亡。用打孔注射硫酸亚铁溶液治疗黄花梨黄化病 ,成本低 ,收效快 ,副作用小。具体操作方法如下 :用 5ｍｍ钻头 ,在树干下部与树干呈 4 5°角钻孔 5ｃｍ深 ,用针筒
Hypocotyls grown in alkaline soil, yellowing serious, ranging from the green leaves turn green slow, pear quality decline, weight is yellowing, whitening, the final decline of the whole plant died. Punch injection of ferrous sulfate solution of yellow pear disease, low cost, fast, side effects. Specific methods of operation are as follows: with a 5mm drill, the bottom of the trunk and the trunk was 4 5 ° angle drilling 5cm deep, with a syringe