果樹基肥一般都安排在秋季施用,大多數果樹生產指導者也是這樣要求的。但根據不同果樹的發育過程和需肥特點看,這種“一刀切”的做法並不可取。
基(ji)肥(fei)秋(qiu)施(shi),對(dui)於(yu)晚(wan)熟(shu)的(de)果(guo)樹(shu)是(shi)合(he)適(shi)的(de),但(dan)對(dui)於(yu)早(zao)熟(shu)的(de)果(guo)樹(shu)就(jiu)不(bu)合(he)適(shi)了(le)。比(bi)如(ru)說(shuo)大(da)櫻(ying)桃(tao),果(guo)實(shi)生(sheng)長(chang)發(fa)育(yu)期(qi)非(fei)常(chang)短(duan),從(cong)開(kai)花(hua)到(dao)采(cai)果(guo)都(dou)集(ji)中(zhong)在(zai)春(chun)季(ji)的(de)50天左右,在這樣短的時間內,果樹長葉、開花、jieguotongbujinxing,erguoshuzhiyedeyingyangzhuanhuanqihaimeiyouwancheng,bukenenggeishutitigongdaliangxindeyingyang,zhiyouyikaoshutishangyinianjileideyingyangwanchengzheyiqiehuodong。yinci,zaishangyinianjinliangtigaoshutideyingyangjileishuiping,shidayingtaodezhuyaoshifeimude。eryaodadaozheyimude,jiuyaozaishangyiniandeguanlizhongjinliangyanchangshutideyingyangjileishijian,zengjiayingyangjileiliang。ruguozaidayingtaocaiguohoulijishirujifei,zefeichangyouliyudadaozheyimude。ruguozaoshuguoshudejifeizaicaiguohoulijishiru,keshiguoshucongcaiguozhiluoyezheyiduanshengchangqineiyouchongzudeyangfengongying,yehuiyoujiaochangdeshutiyingyangjileishijian。yingyangchongzule,xingchengdehuayayejiubaoman,duidiyuyinianchunjideshuangdongweihaifeichangyouli。ruguozaoshuguoshudejifeifangzaiqiujishiyong,guoshuhenkuailuoyetingzhishengchang,budanxishoufeiliaoshijianduan,erqiehuisuoduanshifeiqianxiajishutiyingyangjileishijian。tongshi,qiushijifeibiranyaowagouduangen,zheyouzaiyidingchengdushangpohuaileqianyiduanshutideyingyangjilei,yingxiangyiniandeguoshishengchang。dangran,xiajishijifeiyeyaowagouduangen,dancishiduangenzaiyidingchengdushangyizhileguoshudeyingyangshengchang,shiguoshuxiangshengzhishengchangzhuanhua,faneryouliyuhuayadexingcheng。zheyidianduiyuyixiezaixiajixuyaokongzhiyingyangshengchang、促進生殖生長的果樹非常有意義,如大櫻桃,可以大大減少多效唑等化學抑製劑的施用量。
以前,果農也有給果樹施“月子肥”的說法,早熟果樹的基肥夏施與施“月子肥”有一致的地方,但在施肥量上更多,且以有機肥為主。
以上道理,不僅針對大櫻桃,對於所有早熟的一些北方果樹如早熟蘋果、桃等都是適用的。
當然,基肥夏施與秋施相比,也有一些特別要注意的。
yishixiajiwendugao,suoshiyongdeyoujifeiyidingyaofajiaochedi,fouzeshiruhouhuizaigaowenxiafajiaoshengreshanggen。cishizuihaoshiyongyouzhideshengwuyoujifei,zheleifeiliaoyouyiweishengwuhanlianggao,zaigaowenjijieshiruhouhuoligao,youliyuguoshugenxifayu。
二是此時施肥,不提倡在有機肥中大量摻入尿素、三san元yuan複fu合he肥fei等deng含han氮dan量liang高gao的de無wu機ji肥fei。因yin為wei早zao熟shu果guo樹shu采cai果guo後hou,樹shu體ti負fu擔dan減jian輕qing,吸xi收shou大da量liang氮dan素su後hou極ji易yi導dao致zhi夏xia季ji枝zhi條tiao徒tu長chang,影ying響xiang花hua芽ya分fen化hua。建jian議yi此ci時shi在zai有you機ji肥fei中zhong摻chan入ru硫liu酸suan鉀jia等deng含han鉀jia量liang高gao的de無wu機ji肥fei和he少shao量liang的de速su效xiao磷lin肥fei,這zhe樣yang有you利li於yu果guo樹shu的de枝zhi條tiao發fa育yu、花芽分化。
sanshiguoshuxiashijifeihou,qiujiduiguoshuzhuishidanfeihegaifeijike,caiyonghuashuichongshihuoqiangoumaishidefangfa,danfeiyekezailuoyeqianyemianpenshi,buyaozaiwagoushenshi,yimianshanghaiguoshugenxi。
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