<address id="z1197"><nobr id="z1197"><meter id="z1197"></meter></nobr></address>

<form id="z1197"></form>

      <sub id="z1197"><listing id="z1197"><menuitem id="z1197"></menuitem></listing></sub>

      <address id="z1197"></address>
      <address id="z1197"><form id="z1197"></form></address>

      <noframes id="z1197">
      河北科技新聞網首頁 | 河北農科110網 | 博客論壇 | 投稿入口
      聯系我們 |設為首頁 | 加為收藏
      您現在的位置: 河北科技新聞網

      秋茬蔬菜定植警惕各種 “死苗”

      時間: 2019-08-12      來源:     



      當前,我省進入高溫多雨季節,同時又正值秋茬設施蔬菜集中定植的關鍵時期,每年由于各種病理性、生理性問題造成的“死苗”現象普遍,嚴重地塊甚至毀種,不僅損失了種苗,也錯過了定植適期。為了保障設施蔬菜的安全生產,筆者總結了造成“死苗”的主要原因及應對措施:

      一、生理性問題造成“死苗”

      生理性問題是秋茬設施蔬菜定植最常見也是最容易被忽略的“死苗”原因。

      1.高溫。8月份我省多地最高溫度達到40℃左右,棚內很容易達到45℃,甚至50℃。這樣的高溫顯然不利于蔬菜生長,特別是定植階段,幼苗根系沒有完全扎開,一個小時的高溫就會造成大面積烤苗,甚至“死苗”。另外,定植時地膜與秧苗壓土不嚴,膜下熱氣極其造成烤苗。因此,應查好天氣預報,定植盡量避開連續高溫天氣;在定植后及時澆小水(注意不要積水漚根),降低地表溫度,避免地表高溫造成烤苗;棚內放置溫度表,如果溫度過高,根據溫度可在上午11時前后架設遮陽網3~4小時,避免正午棚內高溫烤苗,也可在棚上噴涂降溫劑、泥漿或在棚膜上扔一些稻草進行遮陽降溫;定植時注意地膜和植株之間要用土壓實;定植前噴施阿速勃葉600倍液或碧護15000倍液增加植株抗逆能力,提高定植成活率。

      2.漚根。目前我省已進入雨季,今年連續暴雨天氣對設施蔬菜的定植工作提出了更高的要求。首先,應當在雨季之前將棚頭前下挖30厘米,把最下面的棚膜下端沿挖好的溝向下平鋪,再將挖出的土回填,形成地下防水膜,防止雨水從棚頭進入棚內。其次,在棚間挖好排水溝,以便積水及時排出。最后,在雨前及時關閉風口,防止暴雨進棚。如果預防工作不及時,一旦棚內積水,一定要盡快將積水排出,之后地表噴施62.5克/升精甲·咯菌腈1500倍液進行土壤殺菌,配合葉面噴施阿速勃葉或益施幫600倍液提高蔬菜抗逆能力。

      3.“懸空苗”。近幾年,農業園區發展迅速,由于園區都是雇工干活,特別是一些新菜區,沒有經驗,經常會出現定植時基質與土壤沒有完全親和,根系接觸不到土壤,造成“懸空苗”。對于這樣的情況需要在定植前和工人反復強調,定植時監督檢查,定植后仔細復查,保障定植質量,避免“懸空苗”發生。

      二、病理性問題造成“死苗”

      土傳病害是設施蔬菜的“老問題”了,定植時主要是根腐病、莖基腐病等病害。對于土傳病害的防控應采取“預防為主,防治結合,綜合防控”的植保方針。

      1.農業防治。根據蔬菜種類,進行輪作倒茬,注意選擇不同科屬作物進行倒茬(例如黃瓜和番茄)。 2.物理防治。定植前采用高溫燜棚技術可有效降低棚內菌源數量,降低發病幾率。

      3.生物防治。定植時每畝穴施1千克枯草芽孢桿菌NCD-2。

      4.化學防治。隨緩苗水每畝根施25%嘧菌酯100毫升+62.5克/升精甲·咯菌腈100毫升。

      河北省蔬菜產業體系病蟲害綠色防控團隊 張尚卿 韓曉清邸墊平 孫 茜

      責任編輯: 劉慧

      河北科技報社版權所有,本站點信息未經允許不得復制或鏡像
      備案號:冀ICP備08106122
      Copyright??2012?hbkjb.com?All?Rights?Reserved.
      亿万彩票亿万彩票官网亿万彩票平台亿万彩票app亿万彩票邀请码亿万彩票娱乐亿万彩票快3亿万彩票时时彩亿万彩票走势图亿万彩票ios 3846e.com | 22296vv.com | 9030l.com | www.78680i.com | www.zfcp3.com | 7742e.com | www.zr7377.com | www.80767z.com | 55663885.com | www.20209.com | www.602965.com | 3522hh.cc | www.089876.com | www.66ffi.com | 4270ll.com | www.384559.com | www.710650.com | 3405eee.com | www.8645006.com | www.33598o.com | 3122pp.com | www.75600b.com | 99151i.com | www.10053344.com | www.08czj.com | 8381c.com | www.00772i.com | www.190882.com | 2355w.com | www.8d818.com | 1408y.com | www.hg8145.com | www.689613.com | oo5144.com | www.4828.com | 01234c.com | www.28000x.com | 79964w.com | www.vns20033.com | www.76762.cc | 18438v.com | www.630269.com | igcp.com | www.998855c.com | www.303053.com | pj677k.com | www.957004.com | 22207s.com | www.673888g.com | 20774444.com | www.amjs799.com | www.129177.com | www.wan6668888.com | www.63500.cc | jj3189.com | www.21202i.com | hhgz0077.com | www.12136d.com | 40033eee.com | www.8888hj.com | 71707h.com | www.cp505a.com | 6766cc.com | www.xpj775.com | js26732.com:9885天天代理.com | www.0860a.com | www.775709.com | 3mgmttt.com | www.812780.com | 1164.com | www.949403.com | 2885647.com | www.069wy.com | www.spj00.net | www.8996hh.com | 588hhh.cc | 4025o.com | sss090.com | www.80075m.com | www.s30226.com | 2709h.com | www.709wb.com | www.hg888.me | 3304tt.com | www.452803.com | www.88166q.com | 0068.cc | www.129985.com | www.hr1777.com | www.vns991.cc | 66671v.com | www.81678d.com | www.48282222.com | hwcp44.com | www.346211.com | www.5981u.com | www.tyc733.com | 3156.com | 83138b.com | www.win1233.com | www.773339.cc | 8203g.com | www.626747.com | www.5981m.com | www.7720x.com | 61652m.com | www.3478o.cc | www.jz95599.com | www.as0099.com | p14666.com | www.527477.com | www.58404c.com | www.yh8894.com | 64640029.com | 3424.com | www.717456.com | www.806070.com | e45638.com | 3616d.com | www.714445.com | www.9377msc.com | 2096z.com | 6220oo.com | www.58699.cc | www.0088hgii.com | www.7172211.com | 734.cm | 1104dh.com | 2400017.com | www.08588s.com | www.3983.com | www.32666f.com | z40033.com | 0136365.com | www.33598k.com | www.k32939.com | www.1115156.com | 4242001.com | 6600mmmm.com | 22117l.com | www.599842.com | www.97655s.com | www.138cpr.com | www.h0040.com | 7935u.com | 550111d.com | 1775y.com | www.caim5.com | www.79095e.com | www.770444.com | 6647h.com | 82365s.com | man984.com | www.585751.com | www.984709.com | www.jty649.com | 11422z.com | 2222k7.com | 5003j.com | 44nn8332.com | www.hycb8.com | www.hd8679.com | www.5981b.com | www.294294.com | 5001f.com | xym97.com | 50099q.com | 3679oo.com | 99567r.com | www.864755.com | www.hg785.com | www.2021e.com | www.5504p.com | www.8694u.com | mmm8827.com | 6q604.com | 9y88.vip | jsok258.com | www.609816.com | www.29699.com | www.40288u.com | www.bai5544.com | www.005966.com | www.ylg4499.com | bet599.com | xpj677m.com | 89892dd.com | www.101372.com | www.022ah.cc | www.2418u.com | www.jsc2019.com | www.xj6006.com | www.65066ss.com | www.1389hh.com | www.10870.com | www.365109f.com | www.22266638.com | www.yun505.com | dd.cc | 6261bb.com | qq365h.com | 59599v.com | 111122ll.com | www.938454.com | www.2632g.com | www.7920n.com | www.5446x.com | www.820025.com | www.7893.ag | www.sb5508.com | www.0777msc.com | www.xlcp.com | www.8767700.com | www.8520q.com | www.6033d.com | ww4119.com | 3846i.com | 36406666.com | 560pj.com | tl850.com | www.574577.com | www.7225j.com | www.9570116.com | www.x69096.com | www.msc128.com | www.7668888.com | www.jx5544.com | www.5360fj.com | www.4963ss.com | 2851g.com | 500000995.com | 2613y.com | 88903838.com | www.7720p.com | www.76543o.com | www.255251.com | www.h067.com | www.700h.com | www.118893.com | www.477suncity.com | www.9ag88.com | www.566652.com | www.xpj16681.com | www.087g.com | www.50732k.com | www.304005.com | www.98255.com | www.hf6680.com | www.509980.com | 49973.com | 8003xl.com | 2019ww.cc | 492dh.com | v2146.com | 3788.link | 2709u.com | www.h6635.net | www.yz889.com | www.998855o.com | www.x32031.com | www.585167.com | www.367777.cc | www.51515l.com | www.921599.com | www.81233v.com | 5478xl.com | 61999ff.com | 1484vipc.com | 496mm.com | 3121ss.com | www.f27229.com | www.js253.com | www.4996wh.com | www.2418w.com | www.66ffh.com | www.297757.com | 2222k11.com | 7240y.com | 2381yy.com | www.amvip555.com | www.138cph.com | www.6868.tw | www.022cq.cc | xycp88.com | z45638.com | 34x35.com | d88.com | www.3332xj.com | www.xj666i.com | www.js89u.vip | www.07500w.com | www.423689.com | 3339193.com | 1194111.com | 7989d.com | www.10051005.com | www.79890m.com | www.4996bj.com | www.84499g.com | www.371679.com | 20778855.com | 3405ff.com | www.555xhtd.com | www.318418.com | www.hg341.com | www.843633.com | 5004e.com | 2820o.com | ca7099.com | www.js520567.com | www.170676.com | www.3978p.com | www.354211.com | 4323f.com | 33115e.com | www.67797q.com | www.00618g.com | www.51331f.com | 9649a.com | 67890ooo.com | www.4972aa.com | www.185143.com | www.99jtj.com | 01234rr.com | 8037aaa.com | www.63877t.com | www.38345t.com | www.66655.com | www.392477.com | 256777gcom | zhcp51.com | www.635365.com | www.742488.com | www.712250.com | 63964444.com | www.9763333.com | www.xy046.com | www.bet73x.com | 22291166.com | 20054422.com | www.22gp.com | www.9187j.com | www.538950.com | 5906mm.com | www.410zr.com | www.c5c99.com | www.22743.com | 1407s.com | 50000922.com | www.rycp162.com | www.1248g.cc | 875566.com | www.033033s.com | www.9737aa.me | www.cb2988.com | 6869822.com | 7989l.com | www.998855x.com | www.255ak.com | 2015288.com | www.yddc09.com | www.296395.com | www.503433.com | 4590t.com | www.36796.com | www.sx1811.com | lg888888.com | 9819733.com | www.9737oo.com | www.689244.com | 97987-3.com | www.2598567.com | www.4988a.cc | 996622zz.com | www.db2233.com | www.w84h.com | www.303476.com | 73hg.com | www.333777j.com | www.w058.com | 66331381.com | www.55268gg.com | www.2418n.com | xsj.com | www.pj0088.com | www.ag99365.com | 33115k.com | 3336609.com | www.9822ae.com | www.617069.com | 36400099.com | www.799666q.com | www.078wy.com | 4473.com | www.49788.com | www.71gcw.com | 55957k.com | www.274166.com | www.2373e.com | 66887web.com | www.bw9988.com | www.599645.com | 00773u.com | www.ff55826.com | www.355246.com | 5360t.com | www.14k0048.com | zzylc5.com | 5369l.com | www.flb902.com | 1813bb.com | 1775bb.com | www.55717r.com | 7893w07.com | www.yh33558.com | www.2109p.com | 4107k.com | www.77731c.com | www.317199.com | 2019u.cc | www.004869.com | 28288pp.com | www.9426.com | www.361770.com | gg32355.com | www.n98478.com | 5651bcom | www.09848.com | www.270667.com | ha080.com | www.40288w.com | 92226.com | www.hg88996.com | www.721560.com | 2643r.com | www.55717.com | 888991166.com | www.24k888.vip | www.591411.com | 11955.com | www.261610.com | www.9996zz.com | www.370193.com | www.65707v.com | www.63877c.com | www.86889.cc | 84496633.com | www.48330l.com | 7703kk.com | www.90644.com | feicai0423.com | www.pj5506.com | www.799046.com | 500000555.com | www.4923b.com | qqq40033.com | www.xj6007.com | 1591hhh.com | www.c44yy.com | 6363o.com | www.15011v.com | www.178075.com | www.bwin7788.com | www.815055.com | 226688.net | www.5091z.com | 3178ff.com | www.0270n.com | 50099.com | www.d94600.com | 223739.com | www.79095f.com | 61328899.com | www.4996dl.com | 40014499.com | www.00773v.com | ule609.com | www.4963vv.com | 3238.com | www.n32939.com | 1665jj.com | www.228667.com | lll0055.com | www.437999.com | q5429.com | www.4632.com | 67890ppp.com | www.c1724.com | tt6827.com | www.50999s.com | hb95996.com | www.57800m.com | 61328833.com | www.73990c.com | rr444000.com | www.89789v.com | 888.cm | www.89894l.com | jsylc.com | www.73gcw.com | www.sjmcasino.com | www.781253.com | www.87680o.com | www.068675.com | www.82788.com | 8036uu.com | www.808888m.com | 288-6.com | www.v2662.com | 7240m.com | www.60123g.com | 44zz8331.com | www.853689.com | www.pj2018.com | 29918d.com | www.5966bbb.com | 760dd.cc | www.78680d.com | 8977aa.com | www.3890w.com | www.333222x.com | www.136503.com | www.134222.com | 58222s.com | www.44118r.com | 4182.com | www.ya618.com | www.k4737.com | 80188g.com | www.3157w.com | 38365r.com | www.65707c.com | 2677zzz.com | www.557089.com | www.hg2631.com | 33771381.com | www.rrqp111.com | 99151u.com | www.699494.com | www.408409.com | 32355gg.com | www.8722.com | 66300vip27.com | www.335214.com | www.hg7760.com | 463e8.com | www.78700d.com | www.63877v.com | zx3144.com | www.33111122.com | 52599n.com | www.2373a.com | www.330067.com | 5906uu.com | www.amjs449.com | 21866n.com | www.50064e.com | www.dzj9990.com | puntbee.com | www.966019.com | www.msc605.com | 234915.com | www.68993278.com | www.xj5577.com | 99111nn.com | www.32031e.com | 18aobo.com | www.602630.com | www.zte444.com | 77606w.com | www.935506.com | www.hg8205.com | 0008ee.com | www.qucp9.com | www.569389.com | 5504j.com | www.hy5501.com | www.413999.com | 37111n.com | www.092wy.com | www.303408.com | 407uu.com | www.c9337.com | www.jqb8.com | xpjgo6.com | www.682880.com | www.77731b.com | 9694s.com | www.343177.com | www.3157h.com | ee0385.com | www.71399i.com | www.06387788.com | 6363d.com | 033o.net | www.13434f.com | www.s783.com | 2147006.com | www.cp0123.cc | www.scw452.com | 983888m.com | www.52072g.com | www.744363.com | www.7435x.com | 3473m.com | www.32123w.com | www.xg289.net | js7.ch | www.107658.com | www.4156.com | www.995l.net | 61999.com | www.661929.com | www.5099aa.com | a05677.com | 3189o.com | www.66376b.com | www.567878.com | vnb8.com | ctx668.com | www.4923m.com | www.15011v.com | www.56733n.com | 8381uu.com | www.96756.com | www.36677e.com | www.81520f.com | www.0003yh.com | 997799.net | www.976917.com | www.04567z.com | www.wxr77.com | 55545g.com | www.768997.com | www.7415ww.com | www.3983139.com | cr258.com | www.935960.com | www.9570113.com | www.m1862.com | 463h8.com | www.106260.com | www.68993278.com | www.4394b.com | gg2649.com | 033o.net | www.3890w.com | www.4694r.com | www.32126t.net | 36406699.com | b762.xyz | www.75345.cc | www.848777k.com | www.bwin1188.net | 3568vv.com | 3844o.com | www.757q.com | www.630269.com | www.9679l.com | wan0247.com | 1305004.com | www.959079.com | www.23819.am | www.ok49.com | vn13588.me | 0289l.com | 6647d.com | www.9149k.com | www.dzcp1111.com | www.yinhecc99.com | jz575.com | 67890ppp.com | www.686536.com | www.356977.com | www.dw8844.com | www.183ks.com | 60688.cc | 2078v.com | www.515233.com | www.yh66988.com | www.4212c.com | www.3643q.com | 4647088.com | 3304w.com | www.324177.com | www.71233w.com | www.89677g.com | www.12qz3.com | 89892ii.com | 1552666.com | 131nn.net | www.587502.com | www.81520w.com | www.6880zz.com | www.wn2888.com | x2913.com | 4036t.com | 58222s.com | www.137101.com | www.1368o.cc | www.55676.com | www.727321.com | www.1423guo.com | bet3659092.com | hjcp77.com | 59599l.com | hg77701.com | www.898134.com | www.yh76a.com | www.3116s.com | www.weinisirenbet.com | www.pj5556.com | 22296oo.com | 67890d.com | 1669m.com | 667766e.com | www.599649.com | www.87498.com | www.25229.com | www.o32939.com | www.72477b.com | www.76543h.com | 2455d.com | 3522s.vip | 33337893.com | bwin8e.com | 开彩? com | www.533660.com | www.26czj.com | www.hg28866.com | www.69567w.com | www.98698m.com | www.001439.com | www.pj888055.com | www.hg80999.com | zhcp43.com | 61321155.com | 33337893.com | 44077s.com | 5446v.com | www.022173.com | www.699925.com | www.0719.cc | www.80767w.com | www.e98478.com | www.369406.com | www.71071x.com | www.zte444.com | www.bj448.com | www.35441777.com | www.67797m.com | www.f50336.com | hh3405.com | 3254.com | 33318h.com | 4mgm.com | bbb5657.com | 463k8.com | 0241t.com | 3189d.com | 1679bb.com | 55331rr.com | 1775aa.com | 80878g.com | www.543977.com | www.717772.com | www.987434.com | www.01czj.com | www.3890t.com | www.37124.com | www.50080c.com | www.77802x.com | www.725602.com | www.u77929.com | www.36585555.com | www.0194007.com | www.89777m.com | www.293.com | www.yh68073.com | www.2256.cc | www.hg355.tw | www.3790011.com | www.886484.com | www.ejylc15.com | www.89777l.com | www.9187a.com | www.97828e.vip | www.63800b.com | www.97828d.vip | www.81608g.com | www.37377s.com | www.hd8675.com | www.927004.com | www.16065l.com | www.97655p.com | www.36788y.com | www.ag.hg3005.tw | www.73166d.com | www.25688k.com | www.022w.cc | www.c130.vip | www.711863.com | www.338082.com | www.43131j.com | 338499.com | 99151w.com | 441766.com | 30007g.com | 00117076.com | dh41866.com | 00774ee.com | 528866.com | www.333222n.com | www.u8867.com | www.166459.com | www.44317.com | www.pj888i.com | www.663558.com | www.410075.com | www.66332s.com | www.ybao5.com | www.599845.com | www.81233e.com | 47749q.com | 88535y.com | 51452.com | 68228r.com | 383744.com | www.vip6277.com | www.12222055.com | www.91gwc.com | www.00778v.com | www.7240x.com | www.50026x.com | www.955474.com | www.178625.com | 2418h.com | 12742e.com | gg7742.com | js666996.com | www.4972ff.com | www.37767.com | www.55060b.com | www.077578.com | www.5091u.com | www.549577.com | 5589p.com | 518515.com | 11005q.com | x48j.com | www.9103ss.com | www.808888y.com | www.350c9.com | www.5484g.com | www.375791.com | 11998332.com | bdg1166.com | 2247x.com | www.b8867.com | www.01.bet | www.js89x.vip | www.8667p.com | www.268993.com | 3405yyy.com | s86226.com | 80878d.com | www.pj8980.com | www.sha2233.com | www.7239f.com | www.703602.com | 5144s.com | 4165d.com | 668866.com | www.38987.com | www.15k0048.com | www.88266f.com | www.401274.com | swtykkk.com | b7570b.com | www.yhuuu.com | www.68277333.com | www.452.com | www.904859.com | 876878u.com | 3559ff.com | www.3435k.com | www.2220365.com | www.112.ceo | www.c130.vip | 3245v.com | 4288nn.com | www.365969.com | www.dfh210.com | www.91709.com | www.364141.com | qy8.com | 3242.com | www.ylg424.com | www.63606p.com | www.zfcp2.com | bet3650759.com | 4288c.com | www.alpk11.com | www.y32939.com | www.36787d.com | 28288e.com | 3890q.com | www.h5505.com | www.9b008.com | www.68689g.com | 3522r.vip | 2214c.com | www.hgbet00.com | www.3bet005.com | www.3479k.com | 40168.com | 61325500.com | www.hg0770.com | www.0600r.cc | www.670477.com | 5456.com | LDZ333.com | www.557244.com | www.07163b.com | 3544p.com | weid.tv | www.21033.com | www.sj5558.com | www.183799.com | 4136q.com | www.58777g.com | www.130013.com | www.652982.com | jsjlb9.com | www.554js.com | www.b35aa.com | www.997345.com | 911boan.com | www.pj550077.com | www.89599e.com | www.627012.com | js66.com | www.pj8819.com | www.624618.com | www.755874.com | 86688008.com | www.yinhe9507e.com | www.627464.com | www.393477.com | 9646q.com | www.9284444.com | www.12136ee.com | 80908u.com | 3614l.com | www.98923.com | www.55yfa.com | ly88888885.com | www.8494r.com | www.5719g.com | www.106276.com | 7240.com | www.bwin499.com | www.66509.cc | ff555v.com | www.76060x.com | www.wns123b.com | www.025738.com | ww38648.com | www.qyle11.com | www.cyj1.com | 243a2.com | www.330099n.com | www.4923f.com | 7742dd.com | hgw168x.com | www.99552xx.com | www.87668a.com | 143.cc | www.6776ff.com | www.557595.com | tzvip2021.com | www.k00444.com | www.hc2988.com | 3242x.com | www.tqdc222.com | www.3416d.com | sbdjgj.vip | www.fbs44.com | www.39500y.com | nn56988.com | www.vns8489.com | www.78949x.com | 1294h.com | www.330099h.com | www.68689z.com | ly88888880.com | www.tyc600.com | www.66332m.com | 22222007.com | www.6663009.com | www.8499a.com | nn500n.com | www.49799.com | www.ch8345.com | 4465p.com | www.66867.com | www.454556.com | 655660044.com | www.3116h.com | dzyy634.com | 5833yl.com | www.x98478.com | 33432c.com | www.25288t.com | www.31847.com | 7555l.com | www.54mscc.com | www.503662.com | 2569005.com | www.pjc77.vip | 76543t.com | www.558077.com | www.5441w.com | pj88hh.com | www.98698v.com | www.66332u.com | www.5699v.com | www.4923m.com | 8036m.com | www.kj207.com | www.541711.com | 64111l.com | www.9971002.com | 1211.cc | www.hg8069.com | www.638805.com | 2267i.com | www.68365p.com | 80878e.com | www.555575.com | www.630933.com | 896320.com | www.456258.net | vns3.vip | www.55526i.com | 64899.com | www.06bwin.com | www.7793d.com | 44dd8332.com | www.60886x.com | 66119vip.com | www.4901a.com | www.196063.com | www.pj90666.com | www.50732g.com | 38850011.com | www.4196j.com | 700089v.com | www.5349.com | www.045445.com | www.7720l.com | www.022t.cc | 7720r.net | www.9989589.com | bm1107.com | www.4996hl.com | 1591www.com | www.092779.com | www.50026a.com | www.c27229.com | www.937986.com | 87665u.com | www.75538b.com | 7811o.com | www.9187b.com | 00jidu.com | www.04567c.com | 66300vip35.com | www.jy768.com | 2127kk.com |