低产旺长梨树怎样整形修剪霸州市现有梨树４００ｈｍ２，尤其近年来果树生产有了较大发展，而且出现了一批高产典型。但从大面来看，产量仍然很低，质量较差，如王庄子乡有结果梨树１８４．６ｈｍ２，４９３３株，１９８９年总产１８．６７万ｋｇ，平均株产仅３７．８ｋｇ... In recent years, fruit tree production has made great progress, and a number of high-yielding typical products have emerged. However, at a large scale, the output is still very low with poor quality. For example, there are 184.6hm2,4933 pear trees in Wangzhuangzi Township. In 1989, the total output was 186,700 kg, with an average yield of only 37.8kg. .