以往定植的柑桔园,若品种已经过时,市场前景不容乐观;或者由于定植了劣质苗木,造成桔园内品种混杂,果实品质良莠不齐,经济效益低下,可采取高接换种的方法来改造此类桔园,能较快地取得较好的经济效益。高接换种时要注意以下问题。 In the past citrus orchard, if the varieties are outdated, the market prospects are not optimistic; or due to the planting of inferior seedlings, resulting in mixed varieties of orange orchard, fruit quality varies greatly, low economic efficiency, can take a high exchange method to transform this Orange garden, can get better economic benefits faster. High exchange rate should pay attention to the following questions.