Spraying time of cotton defoliant It is recommended that when cotton bolls more than 70% of the best spraying, the high temperature is better. Look specifically at the instruction manual of the packaging manufacturer. Within 3 to 5 days before and after spraying, the daily average temperature is higher than 18°C, and the minimum temperature cannot be lower than 12°C. Cotton defoliant spraying method 1Machine spray (walking canister): Because thidiazuron is mainly contact-killing deciduous, uniform and thoughtful spray is very important. It requires 30-50L/mu of water per mu. It is best to add 8g of transdermal. / Mu, or 28% alkylsulfate 50g/mu. 2Aircraft jet: Because the aerial mu water consumption is small, the spray is not uniform, so the flying height is required to be about 5m. The two times of back and forth should overlap slightly, but do not overlap too much to ensure the water consumption per mu is controlled at 3-. 5kg/mu; and the aircraft jet has not been sprayed to the ground, the ground, with artificial timely supplementary spray; How and when to apply cotton defoliants to spray cotton defoliants 3 spraying time: it is best to choose early morning dew or high humidity in the evening when the spray, under harsh temperature conditions, mixed defoliation aid to a certain extent to improve the defoliation effect. Pond Test Kits,Water Test Paper,Pond Water Test Kits,Api Aquarium Test Kit Changchun LYZ Technology Co., Ltd , https://www.lyzinstruments.com
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