①消毒:凡由外地运入之苗木,应用3～5度石硫合剂药液喷布根、干、避免带菌染病;②分级和修整:按苗木大小、根系好坏分别不同情况给予不同管理,对劈伤的枝干和主侧根应予修整;③浸泡:由外运入之苗木或在贮藏中失水的苗木,栽前必须在清水中浸根12～24小时,以利成活。 ① disinfection: All seedlings imported from the field, the application of 3 to 5 degrees stone sulfur mixture sprayed roots, dry, to avoid infection with bacteria; ② grading and dressing: according to the seedling size, root system, different circumstances give different management, The limbs and the main side of the wound should be trimming; ③ soaking: the seedlings from the transport or storage in the water loss of seedlings, before planting must dip roots in water for 12 to 24 hours to facilitate survival.