玻璃温室厂家带您了解玻璃温室各种天气的应对。
—、是冬季气候寒冷
常有强冷空气南下出现强降温天气，因此搞好防寒保温工作，使蔬菜免受低温伤害是冬季大棚蔬菜管理的关键。据观 测，茄子的气温降到5℃，西红柿降到10℃，辣椒与黄瓜降到12℃的时间较长则易发生冻害。为避免发生冻害，冷空气来临时要堵塞通风口，加厚覆盖物。如果 仍不能控制降温时，应选用吹热风、电热加温线、火道煤炉等办法加温。遇冷空气持续时间较长时，应在中午前后揭去覆盖物，揭后细心观测温度变化，出现温度下 降要立即覆盖，若温度升高再揭开，下午两点后盖严保温。
二、是遇到降雪天气
降雪前要先盖一层苇毛苫，再盖一层稻草苫，雪停后，立即清除积雪，防止积雪融化，确保覆盖物干燥，以利保温。天气开始转晴时，慢慢揭去覆盖物，以利透进阳光。
三、是遇到大风天气
如不及时采取措施，棚膜有被刮坏导致植株被冻死的危险，因此，在大风天气到来前，把棚顶、棚前的覆盖塑料膜固牢，夜晚把草苫压好，防止被风刮掉。
四、是久阴乍晴注意回苫
多日阴雪天气，棚室内的温度降得很低。一旦遇到晴天，阳光照射到棚膜上，棚室内的温度会迅速升高，而土壤温度升高相对较慢。气温升高后，叶片水分的蒸腾也随 之加快，因为此时土壤温度较低，根系吸水力较弱，所以植株容易出现萎蔫现象，严重的以致死亡。因此，遇到久阴骤晴的天气，应该注意回苫。先少揭几条，使室 内温度缓慢上升，并注意观察叶片的表现。若叶片正常，再逐步增加揭苫数量，直到全部揭开;若发现有萎蔫现象出现，应及时再盖上几条草苫。揭苫、回苫有时需 要反复进行1～3次。
基本
文件
流程
错误
SQL
调试
- 请求信息 : 2023-05-28 15:16:36 HTTP/1.1 GET : http://nongyewenshi.cn/shows/4/297.html
- 运行时间 : 0.125523s [ 吞吐率：7.97req/s ] 内存消耗：1,423.89kb 文件加载：124
- 查询信息 : 8 queries 1 writes
- 缓存信息 : 61 reads,3 writes
- [ LANG ] /data/home/qxu1152300267/htdocs/thinkphp/lang/zh-cn.php
- [ ROUTE ] array (
'rule' => 'shows/<catid>/<id>',
'route' => 'cms/index/shows',
'option' =>
array (
'merge_rule_regex' => false,
),
'var' =>
array (
'catid' => '4',
'id' => '297',
),
)
- [ HEADER ] array (
'accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'accept-encoding' => 'br,gzip',
'accept-language' => 'en-US,en;q=0.5',
'connection' => 'Keep-Alive',
'host' => 'nongyewenshi.cn',
'if-modified-since' => 'Sun, 05 Feb 2023 11:46:38 GMT',
'user-agent' => 'CCBot/2.0 (https://commoncrawl.org/faq/)',
)
- [ PARAM ] array (
'catid' => '4',
'id' => '297',
)
- [ DB ] INIT mysql
- [ VIEW ] /data/home/qxu1152300267/htdocs/templates/default/cms/show_cp.html [ array (
0 => 'site',
1 => 'userinfo',
2 => 'Member_group',
3 => 'Member_config',
4 => 'cms_config',
5 => 'siteurl',
6 => 'pages',
7 => 'id',
8 => 'catid',
9 => 'title',
10 => 'thumb',
11 => 'flag',
12 => 'keywords',
13 => 'description',
14 => 'tags',
15 => 'listorder',
16 => 'uid',
17 => 'username',
18 => 'sysadd',
19 => 'hits',
20 => 'inputtime',
21 => 'updatetime',
22 => 'url',
23 => 'status_text',
24 => 'status',
25 => 'did',
26 => 'content',
27 => 'category',
28 => 'readpoint',
29 => 'allow_visitor',
30 => 'top_parentid',
31 => 'arrparentid',
32 => 'SEO',
33 => 'page',
34 => 'modelid',
) ]
- [8]未定义变量: vo[/data/home/qxu1152300267/htdocs/runtime/temp/cc36edbf9cce22e9f45fb0641b2ce09c.php:29]
- [ DB ] CONNECT:[ UseTime:0.005927s ] mysql:host=qdm818952415.my3w.com;dbname=qdm818952415_db;charset=utf8
- [ SQL ] SHOW COLUMNS FROM `yzn_addonarticle` [ RunTime:0.002345s ]
- [ SQL ] UPDATE `yzn_addonarticle` SET `hits` = `hits` + 1 WHERE `id` = 297 [ RunTime:0.001917s ]
- [ SQL ] SELECT `Addonarticle`.*,`Addonarticle_data`.* FROM `yzn_addonarticle` `Addonarticle` LEFT JOIN `yzn_addonarticle_data` `Addonarticle_data` ON `Addonarticle`.`id`=`Addonarticle_data`.`did` WHERE ( id=297 ) LIMIT 1 [ RunTime:0.002132s ]
- [ SQL ] SHOW COLUMNS FROM `yzn_category` [ RunTime:0.002187s ]
- [ SQL ] SELECT * FROM `yzn_category` WHERE ( `status`=1 AND `parentid` = 1 ) ORDER BY `listorder` ASC LIMIT 10 [ RunTime:0.001695s ]
- [ SQL ] SELECT * FROM `yzn_category` WHERE ( `status`=1 AND `parentid` = 2 ) ORDER BY `listorder` ASC LIMIT 10 [ RunTime:0.001833s ]
- [ SQL ] SELECT * FROM `yzn_category` WHERE ( `status`=1 AND `parentid` = 3 ) ORDER BY `listorder` ASC LIMIT 10 [ RunTime:0.001759s ]
- [ SQL ] SELECT * FROM `yzn_addonarticle` WHERE ( `catid` = 4 AND `status` = 1 AND `id` < 297 ) ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001976s ]
- [ SQL ] SELECT * FROM `yzn_addonarticle` WHERE ( `catid` = 4 AND `status` = 1 AND `id` > 297 ) LIMIT 1 [ RunTime:0.001898s ]
0.129741s
