夏季高溫防塵網對于蔬菜可以起到哪些作用呢-行業知識-青縣華茂環?？萍加邢薰?/title> <meta name="description" content="夏季高溫防塵網對于蔬菜可以起到哪些作用呢"> <meta name="keywords" content="夏季高溫防塵網對于蔬菜可以起到哪些作用呢"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> <link href="http://m.qxhmhb.com/industry-214626" rel="alternate" media="only screen and (max-width: 640px)"> <link href="http://www.biskeg.com/industry-214626" rel="canonical"> <link href="/Content/File_Img/qxhmhb.com/favicon.ico" rel="shortcut icon" type="image/x-icon"> <link href="/Content/C_IMG/m210/blue/font-awesome.min.css" rel="stylesheet"> <link href="/Content/C_IMG/m210/blue/common.css" rel="stylesheet"> <link href="/Content/C_IMG/m210/blue/inner-common.css" rel="stylesheet"> <link href="/Content/C_IMG/m210/blue/newslist.css" rel="stylesheet"> <link href="/Content/C_IMG/m210/blue/newscontent.css" rel="stylesheet"> <script src="/Content/C_JS/jquery-1.7.2.js" type="text/javascript"></script> <script 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class="news-date"><i class="fa fa-calendar"></i>2020-07-10</p> <div class="news-text"><p>夏季以光照強度大、溫度高、光照時間長為特點，主要有蟲害、病毒病、高溫障礙等。越夏的蔬菜難以播種、畸形菜多、容易早衰、菜期時間短、都會影響越夏蔬菜的產量。因此，越夏的棚菜想要高生產穩產量，關鍵在于溫度，尤其在夏季進行降溫要采用多種措施，這樣就可以保證越夏的棚菜高生產穩生產。</p><p>撐起一片蔭涼：用好遮陽網可以合理選用遮陽網的型號有很多，顏色各異的遮陽網，不同規格、降溫效果以及遮光率作用都不同，多品種的蔬菜，要求光照的強度的程度也不同。</p><p><img src="/Content/ueditor-builder/net/upload1/Other/18794/6372999302439268382312011.jpg" title="防塵網8.jpg" alt="防塵網8.jpg"/></p><p>夏季使用網科學覆蓋遮陽時，覆蓋時不適合全棚。防止其爛秧，以利通風。一般在棚側1米多點的位置不需覆蓋遮陽網，及時在出苗后支撐起來，改成用棚型進行覆蓋;當浮面覆蓋，對于網寬度應留有余地，遮好后將尼龍繩把網周圍扎牢、固緊、防止被風吹下來。</p><p>遮光和降溫主要是為了加強夏季管理使用遮陽網，其中遮陽占主位。遮陽網揭蓋，靈活的掌握。通常是陰天揭，晴天蓋;早晨蓋，前期蓋；傍晚揭，生長后期揭。</p><p>洗個“降溫澡”：噴水增濕降溫，盡管遮陽措施能降溫，棚內光照弱容易形成，秧苗細弱，產量下降，因此遮陽不宜占用過長時間，不宜有過高遮陽率。夏天的棚內病毒的高發，對蔬菜生長帶來不良影響。適當噴水，對于提高棚內的濕度、減少病毒的發生、降低溫度有顯著效果。</p><p> </p><p><br/></p></div> <ul class="prev_next"> <li>上一條: <a href="http://www.biskeg.com/industry-214632">夏季利用遮陽網覆蓋栽培有哪些好處呢</a></li> <li>下一條: <a href="http://www.biskeg.com/industry-214621">如何保證環保防塵網的牢固度</a></li> <div 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