| 雨雪天气过后，蔬菜大棚咋管理？ |
| 添加时间：2019/2/12 16:24:21 浏览次数： |
| 一、缓慢见光，避免闪苗。 First, slow light, avoid flashing seedlings. 雪后骤晴时，可采用隔1-3个草苫揭开1个的方法，使蔬菜逐步见光，避免秧苗打蔫闪苗。如此反复数次或数天，揭苫数量由少到多，至蔬菜生长正常为止。 When it suddenly clears up after snowfall, the method of uncovering 1 to 3 straw-weeds can be used to make vegetable gradually see light and avoid seedling wilting and flashing. So repeated several times or several days, the number of uncovered seaweed from less to more, until vegetable growth is normal. 使用卷帘机的棚户不要一下将草苫全部拉开，先少量卷起，以后逐渐加量。进入正常管理后，在温度允许情况下尽量早揭和晚盖草苫，揭草苫时间应以揭开草苫后棚内温度不明显下降为宜，盖草苫时间应根据季节和室内温度而定，应在棚内温度降至17℃时盖草苫为宜。 Shantytowns using curtain rolling machines should not pull all the straw weeds apart at once, roll up a small amount first, and then gradually increase the amount. After entering the normal management, as early as possible and evening cover the weed when the temperature permits, the time of weed uwww.chuanganqii.cnwww.biansongqii.cnwww.baohuqi.net.cnwww.xiaoxieqi.net.cnwww.chuangan qi.org.cnwww.bileiqi.org.cnncovering should be suitable to uncover the greenhouse temperature after the weed is uncovered, the time of weed covering should be determined according to the season and indoor temperature, and the time of weed covering should be appropriate when the temperature in the greenhouse falls to 17 C. 二、遭受冻害的要及时补救。2. The frozen injury should be remedied in time. 剪除枯枝，人工喷水，以低温度、少光照为主进行管理，逐步增加光照和提高棚内温度。对长势较弱或结果较多的植株，及时采收，并适量疏花疏果，以减少营养消耗。同时叶面喷肥，补充营养。一般可叶面喷施0.3%磷酸二氢钾加0.3%硝酸钙、1％的葡萄糖液。 Cut off dead branches, sprinkle water artificially, take low temperature and less light as the main management, gradually increase light and raise the temperature in the shed. For plants with weak growth or more fruits, timely harvesting and appropriate thinning of flowers and fruits can reduce nutritional consumption. At the same time, foliar spraying fertilizer to supplement nutrition. Generally, 0.3% potassium dihydrogen phosphate, 0.3% calcium nitrate and 1% glucose solution can be sprayed on the leaves. 三、强化控湿防病。 3. Strengthen humidity control and disease prevention. 持续低温雨雪天气，棚内空气湿度大，易诱发病害，应在中午短时间通风排湿，控制病害发生；特别注意室内15-25℃温度范围，保证空气相对湿度控制在90%以下，以免病原菌快速侵染发病。发病时可选用烟剂、粉尘剂防治，以利于均匀施药，避免棚内空气湿度过高。 Continuous low temperature rain and snow weather, high humidity in the shed air, easy to induce diseases, should be ventilated at noon for a short time to control the occurrence of diseases; special attention should be paid to the indoor temperature range of 15-25 degrees Celsius, to ensure that the relative humidity of the air is controlled below 90%, in order to avoid the rapid infection of pathogenic bacteria. When the disease occurs, smoke agent and dust agent can be used to prevent and cure it, so as to facilitate uniform application of medicine and avoid excessive air humidity in greenhouse. |
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