蔬shu菜cai種zhong類lei繁fan多duo,生sheng物wu學xue特te性xing不bu同tong,對dui營ying養yang的de要yao求qiu也ye不bu相xiang同tong,因yin而er對dui不bu同tong種zhong類lei的de蔬shu菜cai,采cai取qu不bu同tong的de施shi肥fei方fang法fa,不bu僅jin可ke以yi節jie省sheng肥fei料liao,而er且qie還hai能neng使shi蔬shu菜cai高gao產chan優you質zhi又you高gao效xiao。
1.葉菜類 主要有白菜、青菜、菠菜、莧(xian)菜(cai)等(deng)。葉(ye)菜(cai)類(lei)追(zhui)肥(fei)以(yi)氮(dan)肥(fei)為(wei)主(zhu),但(dan)生(sheng)長(chang)盛(sheng)期(qi)在(zai)施(shi)用(yong)氮(dan)肥(fei)的(de)同(tong)時(shi),還(hai)需(xu)增(zeng)施(shi)磷(lin)鉀(jia)肥(fei)。如(ru)栽(zai)培(pei)大(da)白(bai)菜(cai),抓(zhua)住(zhu)開(kai)始(shi)進(jin)入(ru)蓮(lian)座(zuo)期(qi)和(he)包(bao)心(xin)前(qian)的(de)二(er)次(ci)施(shi)肥(fei),是(shi)豐(feng)產(chan)的(de)關(guan)鍵(jian)。如(ru)全(quan)生(sheng)長(chang)期(qi)氮(dan)素(su)供(gong)應(ying)不(bu)足(zu),則(ze)植(zhi)株(zhu)矮(ai)小(xiao),組(zu)織(zhi)粗(cu)硬(ying),春(chun)季(ji)栽(zai)培(pei)的(de)葉(ye)菜(cai)還(hai)易(yi)早(zao)期(qi)抽(chou)薹(tai),結(jie)球(qiu)類(lei)葉(ye)菜(cai)後(hou)期(qi)磷(lin)鉀(jia)肥(fei)不(bu)足(zu),往(wang)往(wang)不(bu)易(yi)結(jie)球(qiu)。
2.果菜類 包括瓜類、茄果類和豆類,食用部分為植株果實,一般幼苗需氮較多,但過多施氮肥易引起徒長,反而延長開花、結果,增加落花、落果;進jin入ru生sheng殖zhi生sheng長chang期qi,需xu磷lin量liang劇ju增zeng,而er需xu氮dan量liang略lve減jian,因yin此ci要yao增zeng施shi磷lin鉀jia肥fei,節jie製zhi氮dan肥fei用yong量liang,黃huang瓜gua坐zuo果guo後hou,就jiu應ying重zhong施shi肥fei,以yi後hou每mei結jie一yi批pi瓜gua均jun需xu補bu充chong肥fei水shui。
3.根菜類 主要有蘿卜、胡蘿卜、蔓菁等,食用部分是肉質根。其生長前期主要供應氮肥,促使形成肥大的綠葉,到生長中後期(肉質根生長期),zeyaoduoshijiafei,shidangkongzhidanfeiyongliang,cujinyedetonghuawuzhiyunshudaogenzhong,yibianxingchengqiangdaderouzhizhigen,ruguohouqidanfeiguoduojiafeizu,zeyishidishangbufentuchang,genjingxixiao,chanliangxiajiang,pinzhibianlie。
dapengdengbaohudishucai,biludishucaidanweimianjishifeiliangdadeduo,qieyinwuyushuilinshi,zhishishengyudefeiliaodabufencanliuyuturangzhong,shiturangrongyenongduguogao,fangaigenxixishouyangfenhuosunshanggenxi,suoyisheshizaipeishucai,yingchongfenkaolvqianchafeiliaodehouxiao,duoshiyoujifei,shidangshaoshihuafei,bimianyinyanleijijuershizuowushouhai,congerjinyibufahuibaohudishucaideyoushi。
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