Expert technical guidance of fruit trees, fruit farmers due to the improper use of pesticides and the occurrence of phytotoxicity, should be based on the specific causes of harm caused by the disease and the degree of victimization, and actively take the following remedial measures to minimize damage to the damage of fruit trees. 1, irrigation water spray. If it is found to be early, the affected plants should be sprayed with water immediately to dilute and wash away the pesticides attached to the foliage and branches, and reduce the pesticide content in the tree body. The earlier and more timely the effect of this measure, the better. 2, spraying and neutralizing. For example, when the leaves are damaged by phytotoxicity, the 50% granular sodium humic acid can be used to make 3000 times liquid for foliar spray; or 50% humic acid sodium can be formulated into 5,000 times liquid to irrigate in the same way, after 3-5 days. The leaves will gradually turn green. If borates from Bordeaux solution produce phytotoxicity, 0.5-1% lime aqueous solution can be sprayed to eliminate the phytotoxicity; if phytotoxicity is caused by lime sulfur, 400-500 times of rice vinegar solution is sprayed on the basis of washing. , can reduce the harm of medicine; if misuse or excessive use of organic phosphorus, pyrethroids, amino methyl esters and other pesticides caused by phytotoxicity, spray 0.5-1% of lime water, detergent powder, soapy water, wash clean water, etc. In particular, spraying ammonium bicarbonate alkaline fertilizer solution is better, not only has detoxification effect, but also can play a role in promoting growth and development outside the root. 3, timely fertilizer. After fruit trees are damaged by phytotoxicity, their growth is hindered and their growth is weakened. Fertilizers (nitrogen, phosphorus, potassium and other fertilizers or thin human waste) must be applied in time to prompt the affected fruit trees to resume growth as soon as possible. If the phytotoxicity is caused by acidic pesticides, some grass ash and quicklime can be sprayed, and the heavy pesticides can be sprayed with 1% bleaching liquid. For the pesticide harm caused by alkaline pesticides, acid fertilizer such as ammonium sulfate can be applied. Regardless of the kind of phytotoxicity, foliar spray 0.3% urea solution plus 0.2% potassium dihydrogen phosphate mixture, or spray with 1000 times liquid plant power 2003, spray once every 15-17 days, even spray 2 - 3 times, can reduce the harm of medicine. 4, injection of clear water. In the treatment of stem borers such as calf, giardia, and moth, etc., due to the phytotoxicity caused by high drug concentration, immediately inject a large amount of fresh water into the tree body from the wormhole on the trunk and make it flow outward. To dilute pesticides, such as acid pesticides, adding appropriate amount of quicklime in the water injection can accelerate the decomposition of pesticides. 5, cultivator loose soil. After the damage of the fruit trees, timely cultivating loose soil (depth 10-15 cm) in the garden and artificially growing the roots, applying appropriate phosphorus and potassium fertilizers to improve the permeability of the soil, promote root development, and enhance the fruit trees themselves. The ability to recover. 6, moderate pruning. After the fruit trees are damaged by phytotoxicity, pruning should be carried out in an appropriate amount in time, the dead branches should be cut off, the dead leaves should be removed, and the dead parts should be prevented from spreading or infected by pathogens to cause diseases. With low-power, miniature size, the serial communication department range sensor with mm accuracy can measure up to 20m, 40m, 60m, 100m, 150m, 200m. Serial Laser Distance Sensor,Serial Communication Laser Distance Sensor,Laser Range Sensor Boards,Distance Sensor Panel Chengdu JRT Meter Technology Co., Ltd , https://www.infrareddistancesensor.com
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In your project, you can use our distance sensor panel to measure a distance.
