新嫁接的小果树,伤口刚愈合,抗逆力较弱,为使其安全越冬,可采用以下措施。一、适时冬灌。在土壤结冻前,把苗床步道或垄沟用犁开沟或人工挖沟、顺浇一次封冻水,灌足灌透。这样,土壤刚开始结冻,有助于土壤保温,保持土壤水分充足,满足果苗越冬期间的水分消耗。二、根颈培土。在越冬前进行根颈培土,防止冻坏根系,以利于新嫁接的果苗越冬。三、设置防寒障。根据苗圃地的地形,在土壤冻结前用高粱、玉米秸秆,每隔2—3个苗床设一个防风障,可在小果树的西北面堆起高50—100厘米左右的土堆,用以防风。 The newly grafted small fruit tree, the wound has just healed, the resistance is weak, in order to make it safe and wintering, the following measures can be used. First, timely winter irrigation. In the soil before freezing, the seedbed trails or furrows with plow ditching or artificial ditching, along with a sealed frozen water, filling enough irrigation. In this way, the soil is just beginning to freeze, which helps to keep the soil warm and keep enough soil moisture to meet the water consumption of the fruit seedlings during the winter. Second, root neck soil. Root-necked soil before winter, to prevent freezing the roots, in order to facilitate the new grafted fruit seedlings wintering. Third, set the cold barrier. According to the terrain of the nursery, set a windbreak every sorghum and corn stalks before the soil is frozen, and pile up the mound about 50-100 centimeters high in the northwest of the small fruit tree to prevent wind .