Explosive vegetables five measures against high temperatures
During the high temperature period in summer, cultivation of vegetables in open fields is a serious hazard due to high temperature. In addition to the selection of heat-resistant varieties, the following protective measures can also be taken to cultivate vegetables in open fields. First, a small area of ​​vegetable plots can be set up to cool the shady shade. Tops branch, or grass felt. Second, build a temporary small shed, covering the shade net. When cabbages, celery, broccoli, and cabbage are cultivated in summer and autumn, the heads are on hot days and must be shaded. Therefore, it is recommended that vegetable growers can build a temporary small shed and cover the shade net outside. This can not only reduce the temperature but also protect the light and prevent heavy rain. Third, the ground covered with thin grass or hay. Regardless of the traditional method of raising seedlings or seedlings for seedlings, after irrigating the seeds after sowing, the seedbed can be covered with thin grass felt, hay, etc., which can cool and moisturize and increase the seedling emergence rate. When 60% of the seedlings are unearthed, the cover can be peeled off, and the seedlings should be lengthened to see the light for a time to prevent the seedlings from being exposed to the sun. Fourth, increase the number of leaves of vegetable plants themselves to shading. When topping the tomatoes in summer season, two layers of leaves should be kept on top of the top fruit. Upper side branches of pepper vegetables, leaving two leaves and then go to the head, but also in order to play the role of cooling shade. There are summer and midsummer outdoor watermelons in the summer season, and vegetable growers generally use their leafy melon vines to cover the body of the melon, which can also play a role in cooling the shade. Fifth, irrigation cooling. After irrigation in summer vegetable fields, it is best to cover wheat straw or wheat bran on the surface, or cover a thin layer of dry soil to reduce evaporation of water and reduce ground temperature. In addition, watering takes place in the morning or in the evening. During the rainy season, we must also pay attention to the timely elimination of water in the fields, and then use well water to control vegetable fields in time to reduce the temperature. Using spray irrigation method can also reduce the ground temperature and increase the air humidity appropriately. Small 125mm led Traffic Light simulation teaching traffic light characteristics of decorative traffic lights 125mm traffic light,125mm mini traffic light,125mm led traffic signal light Shenzhen Wide Way Optoelectronics Co., Ltd. , https://www.wdmtrafficlight.com
1. The 125-type traffic light adopts the C125MM lamp tube that our company has independently opened the mold, with a moderate size and a unique shape.
2. The 125 type traffic light adopts Taiwan Epistar chip lamp beads, which is bright, eye-catching and distinct in color.
3. The bottom of the 125 type traffic light adopts a waterproof connector for outlet, which has a good waterproof effect.
4. The 125 type traffic light adopts bracket installation, which is simple to operate and easy to install.
Install small LED traffic lights, simulate teaching traffic lights, and pay attention to when decorating traffic lights:
1. At an intersection with a guide lane, drive into the guide lane according to the required direction of travel;
2. Those who are ready to enter the roundabout let motor vehicles that are already in the intersection go ahead;
3. When turning to the left, turn to the left of the center of the intersection. Turn on the turn signal when turning, and turn on the low beam when driving at night;
4. When meeting the release signal, pass in turn;
5. When the stop signal is encountered, stop outside the stop line one by one. If there is no stop line, stop outside the intersection;
6. When turning right when there is a car in the same lane waiting for the release signal, stop and wait one by one;
7. At intersections with no direction indicator lights, turning motor vehicles let straight vehicles and pedestrians go first. Right-turning motor vehicles traveling in the opposite direction let left-turning vehicles go first.