Thoroughly clean the garden and clear the dead branches, fallen leaves, weeds, and branches cut off in winter. This is conducive to underground management, but also conducive to the removal of some wintering pests hidden in litter. The thawing water is poured before the thawing of the frozen water, especially for the mountain orchards and sand orchards that have not been emptied of frozen water, and the orchard with lighter branches to be cut in winter, and the serious orchard is drawn, which is conducive to uniform sprouting and flowering. This will increase the fruit setting rate. Reasonable fertilization There is no plot of organic fertilizer applied in autumn and it must be filled in spring. At the beginning of April, the orchards in the early fruit period will produce 2000-3000 kg of high-quality rotizers per acre, and the fruit orchards in the fruit period will be 4,000-6,000 kg per mu. Gully and hole applications are better than ground application. To the young fruit expansion period and then apply 40-60 kg of ammonium diammonium, potassium sulfate 10-20 kg. Saw-cut mouth protection agent Large-scale hacksaw mouth is not easy to heal, and is prone to diseases and infestation. It is advised to apply a protective agent such as Zhifuling, 9281, Guotukang. Prevention of late spring in the bud, spraying more than 6000 times the love of love or Bi defended 800-1000 times the liquid, can effectively prevent the late spring cold hazards. Throughout the flowering period, we must pay close attention to the weather forecast, attach great importance to the frosty blue warning, and timely smoke and cold at night. After the frost had sprayed 6000 times again, the love was over. High Precision Distance Sensor Laser range sensors combine the advantages of a visible red sensing beam with the increased range of a laser. The optical distance sensor devices are Class 2 lasers, support Class 1 customized. The high precision autonics distance sensor is successfully be used to connect to Arduino, Raspberry Pi, with +-1mm to 3mm high accuray, and long-range solutions (max up to 150m) for your application. Precision Distance Sensor,Precision Laser Distance Sensor ,Precision Distance Sensor Laser,Accurate Laser Distance Sensor Chengdu JRT Meter Technology Co., Ltd , https://www.rangingsensor.com