1、挖大坑未起树前在选定的地点挖大坑、坑深1米,宽2—3米(视大树根系长度而定),坑表层30—40厘米熟土放一边,以下生土另放,将坑内石块、杂物等拣出。坑挖好后把表层熟土放入坑底,熟土上面加腐熟的厩肥,每坑100—200公斤,土肥上放30—50厘米生土,用3～5‰高锰酸钾水浇坑土,进行土壤消毒,然后浇足底水待栽。 1, excavation pit did not play in the selected place before digging pit, pit depth 1 meter, width 2-3 meters (depending on the length of the tree roots), 30-40 cm surface layer of clay aside, the following Put another place, put the pit, debris and other pick out. After digging the pit into the bottom of the mature soil into the pit, cooked soil above the maturity of manure added, 100-200 kilograms per pit, put soil fertilization 30-50 cm soil, with 3 to 5 ‰ potassium permanganate water pit Soil, soil disinfection, and then pour enough water to be planted.