一、選苗
要求苗木健壯、根係發達、木質部發白、根皮略成紅色且與木質部緊密相貼。若根係變黑,即使樹幹呈綠色也可能早已死亡。作為行道樹應多選用樹幹較直、樹形一致、分枝點在3米左右的實生苗或雄株苗木。
二、栽植
早春萌芽前栽植易成活。種植土要選用土層深厚肥沃、有機質含量在1%~3%、透氣透水性能好的土壤。坑底放入腐熟的有機肥後再加入20厘(li)米(mi)厚(hou)的(de)熟(shu)土(tu),使(shi)其(qi)充(chong)分(fen)混(hun)合(he),以(yi)免(mian)燒(shao)根(gen)。如(ru)果(guo)天(tian)氣(qi)幹(gan)旱(han),把(ba)栽(zai)植(zhi)坑(keng)灌(guan)滿(man)水(shui),水(shui)滲(shen)幹(gan)後(hou)再(zai)栽(zai)植(zhi)。銀(yin)杏(xing)通(tong)常(chang)帶(dai)土(tu)球(qiu)栽(zai)植(zhi)。銀(yin)杏(xing)深(shen)埋(mai)後(hou)不(bu)易(yi)發(fa)根(gen),因(yin)此(ci)宜(yi)淺(qian)栽(zai),通(tong)常(chang)以(yi)原(yuan)苗(miao)木(mu)的(de)根(gen)際(ji)線(xian)與(yu)地(di)麵(mian)相(xiang)平(ping)或(huo)高(gao)出(chu)1~2厘米為佳。
三、水肥管理
栽後5~7天澆水,銀杏成活後,無須經常灌水,一般在土壤化凍後發芽前澆第一遍水。5yuefen,rutianqiganhan,kejiaodierbianshui,yiliyuyinxingdeshengchangfayu。yuji,keshitianqiqingkuangjiaoshui。yinxingnaihanpalao,yutianshiyaozhuyipailao。yinweiyinxingdegenbuhuxiliangda,yaofangzhigenxiyinturangzhongshuifenguoduoqueshaoyangqizaochenggenxifulansiwang。shifeizaichunqiuliangji,zaishuguanwaiwei,yonghuanzhuangshifeifahuodadongdefangfa,shiyicifushudeyoujifei,shihoujiaoshui。yinxingyoujiahuo、假死現象。有些銀杏即使根係死了,葉子還能展開,甚至第二、第(di)三(san)年(nian)還(hai)能(neng)發(fa)芽(ya),但(dan)葉(ye)子(zi)很(hen)小(xiao)。待(dai)樹(shu)體(ti)內(nei)養(yang)分(fen)耗(hao)盡(jin),它(ta)才(cai)不(bu)發(fa)芽(ya)了(le),這(zhe)是(shi)銀(yin)杏(xing)的(de)假(jia)活(huo)現(xian)象(xiang)。有(you)些(xie)銀(yin)杏(xing)栽(zai)植(zhi)後(hou),第(di)一(yi)年(nian)不(bu)發(fa)芽(ya),甚(shen)至(zhi)第(di)二(er)年(nian)還(hai)不(bu)發(fa)芽(ya),但(dan)樹(shu)皮(pi)依(yi)然(ran)鮮(xian)綠(lv),到(dao)了(le)第(di)三(san)年(nian)才(cai)開(kai)始(shi)發(fa)芽(ya)展(zhan)葉(ye),這(zhe)是(shi)銀(yin)杏(xing)的(de)假(jia)死(si)現(xian)象(xiang)。所(suo)以(yi)有(you)人(ren)說(shuo):“種植銀杏樹,三年活不算活,三年死不算死。”
四、修剪、中耕及病蟲害防治
銀杏無需特殊修剪,移栽前可進行定幹修剪,同時將過密枝、病蟲枝、shangcanzhijikusizhijianchu。zaiqishengchangguochengzhong,yinshengchanghuanman,yibanbuxiujian。zaiyanghuguochengzhongxujishizhonggengchucao,yiliyushumushengchang,tongshikegaishanturangdetongqitiaojian,cujingenxishengchang,mengfaxingen。yinxingdebingchonghaihenshao,xiajigaowenganhandenianfen,dangnianshengmiaohuoxinyizaidemiao,jingjibuyizhuoshangershibingjunqinru,yuhouyifashengfulanbing。xiajikeshezheyangpenghuoyongboerduoyefangzhi。haichongzhuyaoshiqicao,yaozhuyigaichongdefangzhi。
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