1、改gai善shan光guang照zhao。通tong過guo修xiu剪jian調tiao整zheng樹shu體ti結jie構gou和he樹shu形xing,擴kuo大da單dan位wei麵mian積ji的de光guang照zhao強qiang度du和he樹shu的de葉ye麵mian積ji。為wei達da到dao此ci目mu的de,不bu能neng使shi樹shu高gao和he樹shu冠guan直zhi徑jing過guo大da,盡jin量liang使shi樹shu行xing與yu樹shu行xing要yao互hu不bu遮zhe陰yin,或huo少shao遮zhe陰yin。修xiu剪jian時shi使shi樹shu的de高gao度du小xiao於yu或huo等deng於yu行xing距ju,不bu能neng大da於yu行xing距ju。樹shu冠guan直zhi徑jing不bu能neng大da於yu株zhu距ju。
2、要使骨幹枝角度開張,控製背上枝生長。主枝的腰角,要開張到70°左右,側枝的開張角度,要達到80°左右。無側枝的紡錘形蘋果樹,主枝要開張到70-90°左右,輔養枝角度開張到90°為好。
3、調整幾種枝條比例。修剪時應該調整長、中、duanzhidebili。shengchangshiruo,changzhishaodeshu,shidangduoduanjie,zengjiachouchangzhideshuliang,changshiwang,changzhiduodeshu,yongqingjianhuanfanghekeyadefangfa,zengjiazhongzhiheduanzhishuliang。gaochan、穩產樹的長枝應占總枝量的5-8%,中枝應占10-30%,短枝和葉叢枝占50-60%。
4、tiaozhengzhizudefenbu。zhizufenbuhelifangnengshishuguanneitanghegezhuzhicengjianguangzhaolianghao。zhuzhidebeishangzhizu,yaoyixieshengzhizuweizhu,cezhishangyaopeiyangliangcezhizu。yaoshishuguanchengbolangxing,gecengjiandeguangzhaojunkebeiliyong。shuguanwaiweiduoliuzhongxinghexiaoxingzhizu。zhizurucifenbu,zeyoulishuguanneitangjianguang。
5、枝(zhi)組(zu)的(de)修(xiu)剪(jian)。枝(zhi)組(zu)不(bu)老(lao),枝(zhi)組(zu)不(bu)衰(shuai)時(shi),不(bu)要(yao)急(ji)於(yu)回(hui)縮(suo)修(xiu)剪(jian),要(yao)以(yi)枝(zhi)養(yang)枝(zhi)。依(yi)據(ju)蘋(ping)果(guo)品(pin)種(zhong)特(te)性(xing),適(shi)當(dang)截(jie)剪(jian)需(xu)要(yao)保(bao)留(liu)的(de)細(xi)弱(ruo)枝(zhi)。對(dui)長(chang)勢(shi)較(jiao)強(qiang)的(de)枝(zhi)組(zu),緩(huan)前(qian)促(cu)後(hou),截(jie)放(fang)結(jie)合(he),輪(lun)流(liu)更(geng)新(xin),使(shi)枝(zhi)組(zu)內(nei)的(de)營(ying)養(yang)枝(zhi)和(he)結(jie)果(guo)枝(zhi)比(bi)例(li)達(da)到(dao)3:1為宜。
手機版




