In the pollination method, the male flowers that are to be opened or have been opened are first removed in the morning, the petals are removed, and the pollens are gently applied to the heads of female styles that are open or are about to open. A male flower can give 3 to 4 female flowers. Pollination ends before 9 a.m. It can also be treated with auxins to increase the rate of results and fruit weight. Use 25 to 30ppm of 2? 4-D or 50ppm of non-eruptible, can also be used 75 times the solution of Shennong tomato high yield agent 2, at 6-9 every day with a brush pen dipped in stigma and corolla base on the drug, must not be applied Pedicel and repeat flowers. Gold squash should be racked and wrapped. Generally when the melon grows to 0-15 ~ 0-25 kg or so, melon length 18-20 centimeters can be harvested. At this time, the melon meat is delicate, the taste is sweet, and the quality is the best. Pest control: 1 Powdery mildew: Enhancing greenhouse air release and preventing high humidity is the key to disease prevention. At the beginning of the onset, spray 20% triadimefon EC 2000 times, or 75% chlorothalonil wettable powder 600 times, 2% antimycotin (Agriculture 120), 200 times liquid, spray before noon, and spray carefully. In addition, with the smoke agent No.6 developed by Shenyang Agricultural University, 350-400 grams of smoke per acre is better. 2 Downy mildew: The disease mainly damages the leaves. Comprehensive preventive measures for agriculture; Strengthen ventilation and humidity removal, especially to prevent temperature from 15 to 22°C, maintaining relative humidity at 85% or more for a long time; Strengthen cultivation and management, increase phosphorus and potassium fertilizers, and increase plant resistance to disease; When a large number of diseases occur, a high temperature of 40°C can be used for about 2 hours. Chemical control: smoke can be selected to smoke, such as smoke agent No. 1, chlorothalonil smoke agent, Gram-negative fungicides; use of agents such as 72% Kelu, 72? 2% Prec, 50% vastatin, 69% Ank manganese zinc, 30% green leaf Dan, 40% Amethyst copper, 72% frost tyrants, etc., the above agents used alternately, spray once every 7 to 10 days, and even spray 3 to 4 times can effectively prevent disease.
Volsen owns a professional custom synthesis department, with more than 15 senior scientific research chemical personnels who have a graduate degree or above. We also have an independent scientific management system. Our company integrates years of production experiences and talent reserves that forms a strong R&D production capacity, furthermore we could undertake various chemicals customizations from kg to ton relying on the existing production base and equipment.
With the accumulated strong expertise,and experiences of developments,we have developed the products with good quality and also manufactured the intermediates for multi-national Pharmaceutical company.
R&D Pharmaceutical
R&D Pharmaceutical, Research And Development Pharmaceutical, Bulk Drug Development
Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com