muqian,yinianyidachatianjiaozhengchuzaijieguoqi,genjuwangnianjingyan,cainongmenfanyingjieguoqitianjiaoruobuzhuyiguanli,henrongyichuxianduanchaxianxiang,zenyangbaozhengjieguoqitianjiaolianxuzuoguone?jizhejianyicainongzuohaoyixiasandian。
一(yi)是(shi)提(ti)高(gao)甜(tian)椒(jiao)坐(zuo)果(guo)率(lv),不(bu)要(yao)依(yi)靠(kao)點(dian)花(hua)。記(ji)者(zhe)在(zai)洛(luo)城(cheng)街(jie)道(dao)一(yi)帶(dai)采(cai)訪(fang)時(shi),了(le)解(jie)到(dao)因(yin)為(wei)頭(tou)茬(cha)椒(jiao)坐(zuo)果(guo)較(jiao)少(shao),有(you)的(de)菜(cai)農(nong)用(yong)點(dian)花(hua)藥(yao)點(dian)花(hua)提(ti)高(gao)甜(tian)椒(jiao)的(de)坐(zuo)果(guo)率(lv),結(jie)果(guo)甜(tian)椒(jiao)是(shi)坐(zuo)住(zhu)了(le),但(dan)果(guo)實(shi)畸(ji)形(xing)果(guo)較(jiao)多(duo)。並(bing)且(qie),使(shi)用(yong)點(dian)花(hua)藥(yao)來(lai)點(dian)花(hua),甜(tian)椒(jiao)葉(ye)片(pian)發(fa)黑(hei),還(hai)會(hui)影(ying)響(xiang)下(xia)茬(cha)果(guo)的(de)坐(zuo)果(guo)率(lv)。甜(tian)椒(jiao)是(shi)自(zi)花(hua)授(shou)粉(fen)作(zuo)物(wu),隻(zhi)要(yao)環(huan)境(jing)條(tiao)件(jian)適(shi)宜(yi),無(wu)須(xu)點(dian)花(hua)就(jiu)能(neng)自(zi)行(xing)坐(zuo)住(zhu)。菜(cai)農(nong)反(fan)映(ying)頭(tou)茬(cha)甜(tian)椒(jiao)之(zhi)所(suo)以(yi)難(nan)坐(zuo)果(guo),主(zhu)要(yao)是(shi)因(yin)為(wei)棚(peng)內(nei)溫(wen)度(du)過(guo)高(gao),超(chao)過(guo)了(le)甜(tian)椒(jiao)適(shi)宜(yi)的(de)生(sheng)長(chang)溫(wen)度(du),導(dao)致(zhi)花(hua)芽(ya)分(fen)化(hua)不(bu)良(liang),甜(tian)椒(jiao)坐(zuo)果(guo)差(cha)。對(dui)此(ci),建(jian)議(yi)菜(cai)農(nong)通(tong)過(guo)溫(wen)度(du)調(tiao)節(jie)來(lai)促(cu)進(jin)甜(tian)椒(jiao)坐(zuo)果(guo)。甜(tian)椒(jiao)開(kai)花(hua)期(qi)所(suo)需(xu)的(de)適(shi)宜(yi)溫(wen)度(du)是(shi)25-28℃,晝夜溫差在10-12℃為好。如果夜溫過高,晝夜溫差過小的話,則不容易坐住果。這就需要采取通風、遮陽等措施控製棚溫過高,必要時可噴用助壯素或矮壯素畸控製植株旺長,促進開花坐果。
二er是shi氮dan肥fei使shi用yong莫mo過guo多duo,重zhong視shi鉀jia肥fei使shi用yong。甜tian椒jiao進jin入ru結jie果guo期qi以yi後hou,對dui鉀jia肥fei的de需xu求qiu量liang增zeng多duo了le。記ji者zhe在zai采cai訪fang中zhong,了le解jie到dao有you些xie菜cai農nong在zai給gei甜tian椒jiao施shi肥fei時shi,重zhong視shi氮dan肥fei使shi用yong,忽hu視shi鉀jia肥fei使shi用yong,導dao致zhi甜tian椒jiao不bu僅jin出chu現xian旺wang長chang,而er且qie果guo實shi小xiao,表biao光guang差cha,產chan量liang低di。對dui此ci,建jian議yi菜cai農nong在zai甜tian椒jiao進jin入ru結jie果guo期qi後hou,要yao加jia強qiang鉀jia肥fei的de使shi用yong。一yi般ban來lai說shuo,當dang甜tian椒jiao坐zuo果guo後hou,果guo實shi長chang至zhi核he桃tao大da小xiao時shi就jiu應ying追zhui施shi鉀jia肥fei了le,可ke隨sui水shui衝chong施shi高gao鉀jia全quan水shui溶rong性xing肥fei料liao(樂吧、芳潤15:15:30),滿足甜椒對鉀肥的需求,促進甜椒果實膨大。
三是澆水量切莫過大過小。甜椒屬於淺根係蔬菜,根係不發達,根係主要集中在10-15厘米深的土壤中,既怕澇也怕旱。結果期一旦缺水,植株出現萎蔫,嚴重的果實得臍腐病;如果澆水量過大,則植株容易出現漚根、死棵現象。所以,建議菜農給甜椒澆水時不要大水漫灌,要根據土壤幹濕程度、天氣狀況、甜椒長勢等方麵來決定澆水與否。
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