溫度管理:夏(xia)季(ji)育(yu)苗(miao)時(shi)溫(wen)度(du)高(gao),溫(wen)度(du)的(de)調(tiao)控(kong)相(xiang)對(dui)困(kun)難(nan),采(cai)用(yong)遮(zhe)陽(yang)網(wang)覆(fu)蓋(gai)後(hou)可(ke)以(yi)適(shi)當(dang)降(jiang)低(di)育(yu)苗(miao)設(she)施(shi)內(nei)的(de)溫(wen)度(du)。在(zai)育(yu)苗(miao)管(guan)理(li)中(zhong)應(ying)密(mi)切(qie)注(zhu)意(yi)苗(miao)床(chuang)內(nei)溫(wen)度(du)的(de)變(bian)化(hua),如(ru)果(guo)采(cai)用(yong)塑(su)料(liao)薄(bo)膜(mo)進(jin)行(xing)覆(fu)蓋(gai),應(ying)將(jiang)設(she)施(shi)四(si)周(zhou)的(de)裙(qun)膜(mo)全(quan)部(bu)去(qu)掉(diao),以(yi)加(jia)強(qiang)通(tong)風(feng);晴天無雨的晚上可將遮陽網揭開,保證育苗過程中有一定的溫差。
水分管理:xiajishucaiyumiaoshihenrongyichanshengtuchangmiao,yuyumiaoguochengzhongshuifenguanlibudangyouhendadeguanxi。yibanyumiaoqianyingyicixingjiaozushui,daoyoumiaochutuziyezhankaiqijianbujiaoshui,ziyechutuhougenjumiaoqinghejizhihanshuiliangjinxingjiaoshui,miaochuangyingzuodao“寧幹勿濕”,如果澆水量大,則很容易引起徒長。
光照管理:muqianshucaixiajiyumiaozhongyijingpubiancaiyongzheyangwangfugai,zaijianqingqiangguangzhaofusheweihaihefangzhibaoyuduiyoumiaodechongshuazhongfahuilezhongyaozuoyong,danbingbuyiweizaizhenggeyumiaojijiezhongyizhicaiyongzheyangwangfugai,zaiyintianheguangzhaobutaiqiangliedezaowan,yingjiangzheyangwangqudiao,baozhengyoumiaojieshouchongzudeyangguang,cainengdadaopeiyuzhuangmiaodexiaoguo。
及時進行根外追肥:xiajishucaiyoumiaoshengchangxunsu,jinguanzaipeiyangtuhuoyumiaojizhizhongyijingyuxianhunrulefeiliao,zaiyumiaoguochengzhonghaikenengcunzaiyingyangbuzudeqingkuang,yumiaoguochengzhongyinggenjumiaoqingcaiyong0.2%~0.3%的尿素和磷酸二氫鉀液進行葉片噴施,以促進幼苗的生長。
病蟲害防治:夏季是病蟲害多發的季節,育苗過程中應注意病蟲害防治。夏季蔬菜育苗時易發生的蟲害是蚜蟲、菜青蟲、螻蛄、小地老虎等,易發生的病害是猝倒病、疫病、立枯病、病(bing)毒(du)病(bing)等(deng)。對(dui)於(yu)蚜(ya)蟲(chong)的(de)防(fang)治(zhi),除(chu)了(le)采(cai)用(yong)防(fang)蟲(chong)網(wang)和(he)選(xuan)用(yong)銀(yin)灰(hui)色(se)薄(bo)膜(mo)覆(fu)蓋(gai)外(wai),可(ke)用(yong)功(gong)夫(fu)或(huo)天(tian)王(wang)星(xing)乳(ru)油(you)等(deng)藥(yao)劑(ji)噴(pen)殺(sha)。甘(gan)藍(lan)類(lei)蔬(shu)菜(cai)育(yu)苗(miao)易(yi)發(fa)生(sheng)菜(cai)青(qing)蟲(chong),可(ke)用(yong)高(gao)效(xiao)Bt可濕性粉劑、敵百蟲和滅幼脲3haodengyaojijinxingfangzhi。duiyulouguhexiaodilaohuchukeyongheiguangdengjinxingyoushawai,keyongxinliulinhuodidiweirujijinxingguangen,huoyongdibaichongyuanfenbanchaoxiangdemaifuzhichengduerjinxingyousha。cudaobing、疫病可用杜邦克露、大生、殺毒礬或甲霜錳鋅等藥劑進行防治;病毒病可用病毒A、植病靈等藥劑防治。
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