Increasing yield of greenhouse cucumber
The key to greenhouse cucumbers lies in management and management, which can effectively increase production. 1. The method of using light smoked sheds. When the cucumber seedlings grow to 1 to 4 true leaves, the greenhouse is filled with light smoke, and the seal is kept for 2 to 3 days and nights, which can increase the female flowers of the cucumber and increase the yield of cucumber. The reason is that the smoke contains carbon monoxide, which can inhibit the body of the seedlings. The oxidation process causes the melon to form numerous female flowers. At the same time, smoke can kill cucumber red spiders. 2. Perform artificial pollination. Cucumber is a parthenocarpic flower. It is divided into male and female. In the field, they rely on insects to pollinate. Because there is no insect in the medium, it will cause bad pollination. After the flowering of the cucumber, the male flower of the male flower is applied to the stigma of the female flower for several times, and the purpose of artificial pollination can be achieved, the female flower is reduced, the melon rate is increased, and the melon is large, long, and delicious. 3. The method of foliar spray application. Spray 1% urea aqueous solution in the seedling stage to promote early seedling growth, or spray 0.5% aqueous solution of ferrous sulfate to promote seedlings and strong green leaves. At 7 leaves, a 0.2% aqueous solution of boric acid was sprayed to prevent the loss of the melon. In the case of a large number of melons, spray 0.3% potassium dihydrogen phosphate and 1% urea mixture to make fertilizer, and promote melon production. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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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.