From the late August to the harvest, sweet potatoes are in the late growth stage. The main management measures are:
Foliar spray fertilizer for sweet potato sprayed many kinds of foliar fertilizer, commonly used 1% ~ 2% urea solution, 2% ~ 3% of superphosphate calcium leachate, 5% ~ 10% of the grass ash leachate, 0.3% potassium dihydrogen phosphate Solution, etc.; spray time, the day is about 5 pm, generally 75 to 100 kg per acre spray, every 5 to 7 days and then spray once, and even spray 2 or 3 times.
To prevent the sweet potato from becoming irritated, if the soil moisture content exceeds 90% of the maximum water holding capacity in the field, it will not grow normally. Once it is damaged, it will have a great impact on the yield and even cause the melon to rot. Therefore, after the heavy rain, immediately rule out the accumulation of water in the field, if necessary, spray fertilizer on the leaves to supplement the nutrition of plants, and wash away the sludge that remains on the surface of the plants to promote photosynthesis.
Timely prevention and treatment of leaf-feeding pests Sweet potato-eating moth, Heliothis virescens, Spodoptera litura and other leaf-feeding pests in the late stage of growth of sweet potatoes can be sprayed with cypermethrin pesticide 2000 times or 2000 units of Bt 250 ml/mu in the younger larvae in time. Prevention.
Beauty Machine
Our Beauty Machine include Skin Analyzer , Hair Removed Device, Face Beauty Machine and Infrared Vein Finder.
Skin Analyzer:
Skin Observed System 2.0, the second-generation multi-functional skin analyzer, is a high-tech professional instrument which can analyze skin condition scientifically and objectively based on skin morphology theory. Through unique optics principle, the analyzer adopts integrated graphics and images analysis technique to analyze and interpret the users` skin comprehensively, providing reliable basis for skin beauty, conditioning and treatment. Compared to the first-generation products (products currently on the market), the newest second-generation analyzer has more convenient and compact hardware design.
Ipl Hair Removal Machine is a kind of broad-spectrum visible light with a wavelength between 560 – 1200 nm. According to the principle of photothermal effect, IPL can selectively act on hair follicles and hair rods rich in melanin granule cells to produce local micro-explosion and destroy hair follicle tissue, So as to achieve effective hair removal effect.
Infrared Vein Finder
vein finder bases on the near-infrared absorbance difference between veins and surround tissue, it projects accurate and real-time vein image on the skin of patient. vein finder can be used to find and evaluate the patients` veins, help nurse to do vein puncture. vein finder can help increasing first vein puncture attempt successful rate, increasing vein finding and puncture efficiency, increasing patients` satisfaction and decrease medical disputes. vein finder is widely used in the following departments: pediatric, emergency, oncology, geriatric, radiology, laboratory, vascular surgery, plastic surgery, etc.
Beauty Machine
Beauty Machine,Portable Skin Analyzer,Multifunction Beauty Machine,Cleaner Vacuum Suction Beauty Machine
Shenzhen Guangyang Zhongkang Technology Co., Ltd , https://www.lighttherapymachine.com