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据悉，不久前四川省自然资源研究所攻克了果树“癌症”──缺铁失绿症（黄叶病）。他们的方法是将树干深埋，配以一定的施肥方法，就可治愈果树“癌症”，提高果食品质和产量。这种方法经在13个省70余县数十万株桃、李、苹果、桑、柑桔等树上试验效果明显。目前这一成果已申请
It is reported that not long ago Sichuan Institute of Natural Resources to capture the fruit tree “cancer” - iron deficiency chlorosis (yellow leaf disease). Their method is to burial the tree trunk, together with a certain method of fertilization, you can cure fruit trees “cancer” and improve fruit quality and yield. This method by hundreds of thousands of peach, plum, apple, mulberry, citrus and other trees in more than 70 counties in 13 provinces test results are obvious. The current results have been applied