1砧木的选择和培育核桃嫁接砧木一般选用本地区铁核桃作砧木为好砧木的培育，其做法是把准备培育的铁核桃种子于春季播种前浸泡约7d（天）后，捞出晾晒，待其缝合线稍为裂开，即可播种播种时要注意将种子缝合线直立摆放为好，这样苗木根系舒展，幼茎直立，出苗率高．生长快砧木 1 Rootstock Selection and Cultivation Walnut grafted rootstocks generally choose the local iron walnut rootstock as a good rootstock cultivation, the practice is to prepare the cultivation of iron walnut seed sowing in the spring before sowing about 7d (days), remove and dry until The suture is slightly split, you can sow sowing should pay attention to the seed suture placed as well, so that seedling roots stretch, young stems erect, the emergence rate is high. Grow fast rootstocks