Sweet potato is a very favorite food in our lives. However, we will encounter various diseases during our planting. The following Xiaobian introduced the prevention and control technology of sweet potato black spot. Comprehensive prevention and control measures: 1. Rational rotation, selection of good varieties with strong disease resistance, establishment of a disease-free seeding area; 50% Carbendazim wettable powder 800 times solution soaking for 5 minutes before seedling treatment Seedlings before planting can be soaked with 25% Coke 600x solution + Pidgin Fish Protein 500x solution or 50% thiophanate 500x solution for 10 minutes and then replanted. 2. Strengthen field management, timely cultivation and conservation, and reasonable top dressing. The timely spraying of 300 times of the United States Pridon fish protein in the sweet potato branching and potato phase can effectively control the turbidity of the upper branches of the earth's surface, accelerate the underground tuber enlargement, and strengthen the resistance of the sweet potato. 3. Chemical control, the beginning of the disease should be sprayed with 50% carbendazim WP or 75% white bacillus wettable powder 500 times, 7 days, continuous spraying 2 or 3 times.
Short range distance sensors from JRT combine highly precise measurement results with quick and reliable response. Short distance sensor module use single-transmit and single-receive measurement technology and can be used to measure a distance or monitor the slow moving objects. For the laser pointer distance measure, also called optical range sensor, can measure legth, width, depth. Laser rangefinder transducer with rxtx has been widely used to industries.
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Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com