After the cotton has topped in July, it's essential to implement proper technical measures to ensure optimal growth and high yield. These steps help regulate the plant’s development, manage irrigation, apply fertilizers effectively, and prepare for timely harvesting.
First, scientific control is crucial. After topping, it is generally recommended to control the growth of the cotton plant 1 or 2 times. The first application should be done 3–5 days after topping. For a 667 square meter area, you can apply around 4–5 grams of giberellin (gibberellic acid) mixed with 30 kg of water, and 6–7 grams of diamino amine diluted in 40 kg of water. The second application depends on the plant's condition, weather, soil moisture, and visual signs. Typically, about 8 grams of giberellin per 667 square meters is used. This helps control excessive vegetative growth, encourages the transition from vegetative to reproductive growth, and improves boll formation and size, ultimately contributing to higher yields.
Proper spraying techniques are also important. When applying diamino amine, dissolve the chemical in a measured container, mix well, and then add it to the sprayer. It's best to spray in the late afternoon, avoiding high temperatures and direct sunlight, as this can reduce effectiveness. If it rains within 6 hours of spraying, the absorption may be affected. In such cases, reapplication might be necessary.
Second, irrigation should be adjusted based on local conditions. After topping, the cotton enters its peak reproductive phase, requiring more water. In conventional furrow-irrigated fields, it's recommended to provide adequate water during the first and second irrigation stages. A total of four irrigations are usually needed, with the third and fourth being particularly important after topping. Watering should stop by August 15th to prevent the plants from becoming overly vigorous and delaying maturity.
Third, monitoring the plant's growth and nutrient needs is essential. After topping, cotton requires more nutrients. During the first and second irrigation, apply appropriate amounts of nitrogen, phosphorus, and potassium. Nitrogen should be applied based on the length of the branches and leaves, approximately 5–8 kg per 667 square meters. Additionally, foliar applications of boron fertilizer are beneficial—dissolve 50 grams of fast boron in 50 kg of water and spray twice per 667 square meters to improve boll set rates.
Finally, timely harvesting is key. After picking the cotton, follow the "three whites" principle—harvesting white flowers, white buds, and white bolls. Pick in stages, spread the cotton in the sun, and sort and sell it accordingly. This ensures high-quality output and maximizes yield.
Cloud Indoor Camera
We are manufacturer of Cloud Indoor Camera in China, if you want to buy Mini Camera ,Cloud Indoor Camera,Solar PTZ CCTV, Solar Security CCTV Camera ,Full HD 1080P 4G Version please contact us.
There is no doubt that solar monitoring has brought great convenience to people. It saves a lot of manpower and material resources without having to stick to the post for 24 hours as before. Not to mention that the current surveillance cameras have the function of motion detection. As long as someone enters a certain range, it will automatically alarm and capture the scene. What is the function of the solar monitoring system?
1. Solar panel: The solar panel is an important part of the mobile phone software of the solar power generation system, and also a part of the practical value of the mobile phone software of the solar power generation system. Its function is to convert the professional ability of radioactive substances in natural light into electric energy, or send them to storage batteries, or promote load work.
2. Solar controller: The solar controller is used to control the operation of mobile phone software in all systems, and has the functions of overcharge protection and overcharge maintenance for the battery. In areas with large temperature difference, the qualified controller shall also have the function of temperature compensation. In the mobile phone software of the solar road lamp system, there must be light control switch and time control solar road lamp operation.
3. Battery: generally valve controlled maintenance free lead-acid battery. In the mobile phone software of small and medium-sized systems, in cold weather areas, a solar gel battery needs to be configured, which can be used at low temperatures, with high efficiency and is not vulnerable to major damage. Its function is to store the electric energy of the solar panel when the sun shines, and then release it under certain conditions.
4. Variable frequency power supply: split wave type and sine wave type. In order to provide power for 220VAC electrical products, it is necessary to convert the DC stabilized voltage power supply in the solar power generation system software into AC circuit energy, so DC AC variable frequency power supply is required.
Cloud Indoor Camera,Solar PTZ CCTV, Solar Security CCTV Camera ,Full HD 1080P 4G Version
Shenzhen Fuvision Electronics Co., Ltd. , https://www.outdoorsolarcamera.com