缺氮肥 最(zui)初(chu)葉(ye)子(zi)呈(cheng)淡(dan)綠(lv)色(se),逐(zhu)漸(jian)變(bian)黃(huang),植(zhi)株(zhu)也(ye)會(hui)發(fa)生(sheng)這(zhe)樣(yang)的(de)變(bian)化(hua)。缺(que)氮(dan)時(shi)的(de)變(bian)化(hua)通(tong)常(chang)先(xian)從(cong)老(lao)葉(ye)片(pian)開(kai)始(shi),慢(man)慢(man)的(de)整(zheng)株(zhu)蔬(shu)菜(cai)都(dou)會(hui)變(bian)成(cheng)淡(dan)綠(lv)色(se)或(huo)褐(he)色(se)。
缺磷肥 dangzhengzaishengchangdeshucaiquefalinfeishi,jiuhuibiaoxianchushengchanghuanman,yepianjiaoxiao,chengxiantuilvbingban。xuduoshucaiyezidebeimianbianchenghongzise,xugenfayuchihuan,yanchijieguohechengshu。
缺鉀肥 當dang蔬shu菜cai缺que鉀jia肥fei時shi,最zui初chu在zai老lao葉ye片pian上shang表biao現xian症zheng狀zhuang,植zhi株zhu基ji部bu灰hui綠lv色se和he黃huang褐he色se,沿yan葉ye脈mai呈cheng斑ban點dian。植zhi株zhu根gen部bu發fa育yu不bu良liang,莖jing細xi長chang,變bian硬ying,富fu含han木mu質zhi。
shengchanshijizhongkeyiliyongzhexiejiandandemucefalaipanduandapengshucaideyingyangshifouquefa。ruguonabuzhun,keyiquxietuyang,daonongyebumenjinxingturangfeiliceding,yibianyouzhenduixingdeshifei。
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