杏xing樹shu是shi春chun季ji開kai花hua最zui早zao的de果guo樹shu,而er且qie是shi先xian花hua後hou葉ye,花hua器qi形xing成cheng需xu用yong的de營ying養yang物wu質zhi要yao靠kao先xian一yi年nian秋qiu季ji樹shu體ti的de積ji累lei來lai完wan成cheng,所suo以yi秋qiu管guan對dui翌yi春chun的de花hua器qi結jie構gou及ji坐zuo果guo起qi著zhe舉ju足zu輕qing重zhong的de作zuo用yong。杏園的秋管應抓好下麵三項關鍵工作:
一、shuzhiyuduanjie。xingshushiqiangxiguangshuzhong,zishenshengchangfeichangwangsheng,henrongyixingchengjingzhengshengchangershijieguobuweiwaiyi,zheduixingchengzhuanghuahejieguoshifenbuli,suoyiyingzaicaiguohouqiuguanzhong,duijieguoshuyishuweizhu,caiquchoudazhi、壓(ya)低(di)樹(shu)高(gao)實(shi)施(shi)短(duan)截(jie)為(wei)主(zhu)的(de)修(xiu)剪(jian)手(shou)法(fa),促(cu)進(jin)下(xia)部(bu)及(ji)內(nei)膛(tang)抽(chou)發(fa)新(xin)枝(zhi),形(xing)成(cheng)短(duan)果(guo)枝(zhi)和(he)花(hua)束(shu)狀(zhuang)果(guo)枝(zhi)。同(tong)時(shi)要(yao)注(zhu)意(yi)對(dui)所(suo)保(bao)留(liu)的(de)主(zhu)枝(zhi)保(bao)證(zheng)均(jun)勻(yun)分(fen)布(bu)打(da)開(kai)光(guang)路(lu),對(dui)個(ge)別(bie)可(ke)留(liu)而(er)較(jiao)直(zhi)立(li)的(de)枝(zhi)條(tiao)采(cai)用(yong)拉(la)、墜、撐手段,改變枝向,利用空間多結果;對拖地裙枝、病弱枝、過密枝可一並疏除。
二、施肥與灌水。秋季可對杏園每667平方米追施速效氮肥50-100公斤或尿素30-50公斤,並施磷鉀肥適量,對栽植大樹,可圍樹坑施氮磷鉀三混肥每株3-5公斤,施後遇雨則好,若伏旱秋旱嚴重,可在8-9月力爭澆灌。但要注意樹下根部不能久泡,泡久易傷根。
三、防fang蟲chong與yu保bao葉ye。葉ye片pian是shi果guo樹shu製zhi造zao營ying養yang的de工gong廠chang,完wan整zheng厚hou實shi的de葉ye片pian是shi杏xing樹shu結jie果guo的de保bao證zheng,一yi般ban不bu引yin起qi人ren們men注zhu意yi,伏fu天tian炎yan熱re加jia之zhi秋qiu旱han時shi,容rong易yi招zhao惹re紅hong蜘zhi蛛zhu危wei害hai蔓man延yan,或huo在zai晚wan秋qiu有you連lian續xu秋qiu淋lin,容rong易yi引yin發fa落luo葉ye病bing害hai,致zhi使shi花hua芽ya分fen化hua難nan以yi保bao證zheng,所suo以yi秋qiu季ji進jin行xing經jing常chang性xing的de觀guan察cha十shi分fen必bi要yao,可ke用yong噠da蟎man靈ling或huo多duo菌jun靈ling、甲托等農藥混合噴布防蟲防病,保護葉片。另外,加噴3%尿素對樹體更有益處。
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