Different varieties of grapes are picked in time and in batches, and the maturity period is also inconsistent. Different measures should be taken according to different situations when picking. The ripe grapes are shiny, the flesh is transparent, and there is a thick layer of powder cream. The food has a flavor and the seeds are brown. If the picking is too early, the acidity is too high, which affects the quality. If the picking is too late, the fruit tastes light and is not resistant to storage and transportation. Therefore, timely picking and batching are the key to ensuring the quality of the grapes. It is most suitable for picking after drying in the morning on a sunny day.
Pay attention to drought prevention and cooling in the picking stage. In case of long-term high temperature or no rain, the fruits and leaves are easy to shrink, affecting plant growth and flower bud differentiation. Therefore, it is possible to use the inter-row grass to reduce the ground temperature, and at the same time pay attention to timely and appropriate irrigation. The irrigation should adopt the annular furrow irrigation method, that is, digging a wide ditch outside the canopy to pour water into it.
Appropriate application of the "harvesting" fat grape ripening stage is the second peak period of its root growth, and should be fertilized in time. The amount of fertilization accounts for 60% of the total fertilization in the whole year; the fertilizer is preferably organic fertilizer such as manure, compost, and pond mud. At the same time, some urea, ammonium bicarbonate and other quick-acting fertilizers are added. It is required to apply 3000-4000 kg of organic fertilizer per acre of vineyard, mix 30-40 kg of urea or 100-130 kg of ammonium bicarbonate, apply chemical fertilizer first, then apply organic fertilizer, then cover the soil, and timely fill the water after fertilization. In addition, trimming of the secondary shoots should be stopped during the ripening period.
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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.
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