yushuguanshangxinghao，shiyingxingqiang，lvhuaxiaoguomingxian，shijinnianlaixingdaoshujitingyinshudezhuyaoshuzhongzhiyi。yongyugongchengdeyushumiaomujuedaduoshushicaiyongrengongzaipeipinzhong。yushumiaomuchangyongdepeiyufangshiyoubozhongfaheqianchafa，fenbieyougezideyoudian。zaishangyipianzhongwomenyijingweidajiajieshaoleyushubozhongyumiaoxiangguanjishu，xiamianweinijieshaoyushuqianchayumiaofanzhijishu。
yushuqianchayumiaofashiyongyuxuyaodaliangfanzhiyushuyouliangzhizhu，erzhongyuanbuzudediqu。yushuqianchajishuruxia：
1、yibanzaiyushuqiujiluoyehouhuochunjimengyaqian，xuanzedangniansheng，chongshicuzhuang（jingcu0.5-1.0limi）dezhitiao，jiechengzhang15-20limidechasui。
2、qiujicaijidezhongtiao，jianquchasuihouancuxibutongfenbiehunshacengzhuzang，yinianchunjiqiancha；chunjicaijidezhongtiao，jianquchasuihouancuxifenbiejinshui1-2tian，meitianhuanshuiyici，shichasuichongfenxishui，ranhouqiancha。
3、qianchayumiaokecaiqulonghuochuangzuo。caiqulongzuoyumiao，dalongdanxing，zhuju20limi。caiquchuangzuoyumiao，zaizhengpingmiaochuangshang，anxingju40limi，zhuju20limiqiancha。
4、beifangdiquduozai3yueshang、zhongxunhuoyueshang、zhongxunjinxingqiancha。erqieduocaiqugaolonghuogaochuangyumiao，zhicha。qianchahouguanshui，shichasuiyuturangmiqiejiehe，youliyuchasuishenggenchenghuo。
扦插后管理：
1、yushuqianchahouyingzhuyishuifeiguanli，youqishiqianchahouyaojingchangguanshui，yibaochiturangshirun，cujinchasuishenggenfaya。dangmiaogaoda10limishi，kejianshaojiaoshuicishu。longzuoyumiaokecaiqugouguan，yiciguantou，buhanbujiaoshui。6yuezhongxunhe7yuezhong、xiaxunkeshidangzhuishifei2~3cihuafeiliusuanan，meilongzhuishiliusuanan15~20qianke。8yuezhongxunzuoyouketingzhizhuifei、guanshui，yicujinmiaomuchongfenmuzhihua，zengqiangkanghanxing。
2、qianchayumiaozhuyaoshijishimoyahexiuzhi。yushuqianchahoufayakuai，mengyaduo，yingjishimodiaomengya，peiyuzhushao，kecujinqixingchengxindezhizhu。miaogao5limishi，jinxingdiyicimoya，baoliu2~3geya，miaogao10limishi，diercimoya，xuanliuyigeshengzhangjianzhuangdeyapeiyu，qiyudemengyaquanbumodiao。miaogao60limishi，jinxingdiyicixiuzhi，jiandiaomiaogao1/2yixiadecezhi。7yuexiaxunmiaomushengzhangwangshengshiqi，jinxingdiercixiuzhi，jianqumiaogao2/3yixiadecezhi。danxiuzhibuyiguozhong，fouzefaneryingxiangmiaomushengzhang。
3、youyuyushugennienengliqiang，yekejinxinggencha。wachuzhijing1~2limicudeshuipinggenhuochuizhigen，qiechengzhang15limizuoyoudegenchasui ，yuchunjiqianchayuturangshusong、shirundemiaochuanghuodalongshang。qianchashizhuyiwudaocha，genchasuicutouxiangshang，xixiaotouxiangxia，qianchashizhicha，chahoujishiguanshui。
目前，北方地区前插育苗已经在生产上推广使用。尤其是对于选择榆树优良类型，采集生长快，干形直、材质好、抗性强的榆树优良单株的枝条，通过前插进行营养繁殖，建立种子园，对加速榆树良种繁育具有重要的现实意义。
