桃樹的結桃枝不能太粗 (香煙那麼粗都有些過),也不能太長。而在幼樹第一年長樹階段,允許橫向枝超粗和超長,但不能過於粗大。合理的結桃枝,超過50厘米都偏長。為了達到這個目的,桃樹上的新梢,生長的時間不能太長,必須早停長、早封頂。處於盛果期的桃樹進入6月就得全樹停長。樹形還在建造階段的桃樹,在8月yue底di前qian也ye得de停ting長chang。這zhe樣yang就jiu有you充chong裕yu的de時shi間jian,使shi葉ye片pian通tong過guo光guang合he作zuo用yong所suo製zhi造zao的de營ying養yang,用yong來lai增zeng加jia樹shu體ti的de營ying養yang積ji累lei,提ti高gao花hua芽ya的de質zhi量liang。否fou則ze,枝zhi條tiao停ting長chang的de晚wan,生sheng長chang期qi過guo長chang(枝條生長都是利用葉片製造的光合產物),消耗就大於積累,既不利於果樹翌年的開花坐果,也不利於增強其抵抗自然災害的能力。
為了使枝條早停長,可采取以下措施。轉枝:待橫向新梢長達30厘米時,用手握住新梢基部輕輕轉動180duzuoyou,xinshaojiuziranxiachui。ruojitianhouyouxiexinshaoqianduanyouwangshangchangqilai,yingzaixinshaodezhongbuzaizhuanzhi。fanfujici,zhegexinshaoziranjiuhuitingchang。daduoshuxinshaozhuanzhi1~2次就會停長。化控:桃樹栽植麵積過大,人工忙不過來,可進行化控。當橫向新梢長達30厘米時,可用多效唑300倍液葉麵噴施。如果樹上有桃子,就不能噴施多效唑。因為多效唑有殘留,對人體有害。
若果園內的果樹都旺長,應在第一次轉枝後5tianneijinxinghuakong。zhuanzhijiehehuakong,yingxianzhuanzhihouhuakong,bunengxianhuakonghouzhuanzhi。ruguoxianhuakong,shutixishouyaowuhouzhitiaoyijingbianying,zaizhuanzhishirongyizheduansunshangzhitiao。shushangjinxinghuakong,dixiajiubunengzhuidanfei。ruguodixiazhuishidanfei,yemianpenshidehuakongyaojijiuhuishixiao,zheyangjiudabudaoshizhitiaotingchangdemude。
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