给果树“打针”出奇效给果树“打针”，就是利用农家常用的推拉式喷雾器加上配套的注射针头，在树干上打孔加压注入果树所需的药剂、肥料的水溶液。采用这种方式可以提高果树营养水平，而对果树无害，对矫正果树缺素症有奇效。根据在果田试验，以补铁元素为例，能提高叶片... To the fruit tree “injections” surprising effect to the fruit tree “injection” is the use of farm commonly used push-pull sprayer with ancillary injection needle, perforated on the trunk perfusion injection of fruit trees required fertilizer, fertilizer solution. In this way can improve the nutritional level of fruit trees, and harmless to fruit trees, miraculous effect on the correction of fruit tree deficiency. According to the test in the fruit field to iron elements, for example, can improve the leaf ...