cainongzaizhongzhifanqieshi,weilefangzhiyepianzhizaodeyingyangwuzhilangfei,douhuijishijiangfanqiedecezhishuchu,yibaozhengyepianzhizaodeyingyangwuzhijizhonggongyingzhuzhideshengchang。但不少菜農是隻要看到番茄長出側枝就疏除,結果疏除方法不當,影響了番茄的產量。那麼,怎樣做才合理呢?
首shou先xian,番fan茄qie側ce枝zhi不bu能neng疏shu除chu過guo早zao。研yan究jiu證zheng明ming,番fan茄qie側ce枝zhi較jiao小xiao時shi,其qi所suo製zhi造zao的de營ying養yang大da於yu消xiao耗hao的de營ying養yang,所suo以yi這zhe時shi不bu應ying將jiang其qi疏shu除chu,尤you其qi是shi當dang植zhi株zhu的de葉ye片pian沒mei有you完wan全quan覆fu蓋gai地di麵mian時shi。為wei充chong分fen利li用yong側ce枝zhi製zhi造zao的de營ying養yang,以yi側ce枝zhi長chang5厘米左右時疏除為宜。而對於番茄每穗花下部的第一側枝則應適當早疏除,應在其長3厘米左右時就疏除。如果番茄每穗花下部的第一側枝不及時疏除,其長勢很快就會超過主枝,從而使大量的營養浪費。
其次,番茄側枝疏除不能過晚。如果番茄側枝疏除過晚,側枝長5厘li米mi以yi上shang,就jiu會hui與yu主zhu枝zhi劇ju烈lie地di爭zheng奪duo養yang分fen,並bing且qie長chang勢shi也ye會hui逐zhu漸jian超chao過guo主zhu枝zhi。側ce枝zhi疏shu除chu過guo晚wan還hai會hui造zao成cheng側ce枝zhi的de韌ren皮pi部bu老lao化hua,由you於yu側ce枝zhi與yu主zhu枝zhi的de韌ren皮pi部bu連lian接jie緊jin密mi,在zai疏shu除chu側ce枝zhi時shi容rong易yi將jiang主zhu枝zhi的de表biao皮pi弄nong破po,且qie側ce枝zhi不bu容rong易yi疏shu除chu。
另外,在疏除番茄側枝時,不能留樁,以防從同一葉腋處再次萌發側枝。
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