在春季树液流动时,对劣质低产的普通板栗树进行高接换种,嫁接成优质高产的大粒早熟板栗,一年可基本恢复树势,二年挂果投产。其技术要点如下: 1 嫁接品种及时间。根据市场需求,可选择8月下旬先后上市的特早熟板栗品种处暑红,二新早等。在春季3月中下旬的“春分”节前后选择无风晴天进行嫁接。 2 高接换种方法。首先,根据板栗树 In the spring when the flow of sap flowering, low-yielding common chestnut tree high exchange, grafted into high-quality large-yield chestnut chestnut, a year can basically restore the tree vigor, fruiting two years put into production. The technical points are as follows: 1 Grafting varieties and time. According to the market demand, we can choose the early maturing chestnut varieties Xushuhong and Xinshuxue which have been listed in late August. In spring and mid-March late “spring equinox” before and after the election windless sunny day grafting. 2 high exchange method. First, according to the chestnut tree