What to do with the fruit after peach blossom in greenhouse
The solution of postharvest fruit of peach in greenhouse is to strengthen fertilizer and water, ensure adequate nutrition of the tree, control the temperature and humidity in the greenhouse, control the effects of diseases and insect pests, etc., mainly due to weak tree potential, poor water and fertilizer, pre-flowering malnutrition, not full flower and other reasons. During this period, we should focus on the following points:
1. Strengthen the fertilizer and water to ensure the adequate nutrition of the tree. NP was mainly used in the early stage and competition in the later stage. After topdressing, it was combined with ploughing and watering. If the tree stalk was weak, it could be irrigated with appropriate amount of irrigation.
two。 Control the temperature and humidity in the greenhouse and give the tree the most suitable growth environment. The requirements for post-anthesis fruit expansion period are as follows: temperature 8 ℃-26 ℃, hard core temperature 10 ℃-28 ℃, 15 ℃-30 ℃ in the first 3 weeks of harvest, and the humidity after anthesis should not exceed 60%.
3. Control diseases and insect pests and improve fruit quality. The nectarine in the greenhouse grew in the microclimate environment, and the disease and pest control was good last year. This year, there are few diseases and insect pests, and the main prevention is to prevent the diseases and insect pests. The fungicides are 80% of Dasheng MMI 45's 800 times liquid or 50% carbendazim or Bordeaux solution. Insecticides are used: carbendazide, aphid lice net, fenitrothion.
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What kind of fertilizer is nitrogen, phosphorus and potassium?
Nitrogen, phosphorus and potassium play an important role in the process of plant growth, so what kind of fertilizer is nitrogen, phosphorus and potassium? What's the use? What kind of fertilizer is nitrogen, phosphorus and potassium fertilizer? Nitrogen, phosphorus and potassium fertilizer is a fertilizer that supplements nitrogen, phosphorus and potassium for plants.
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What kind of medicine is used to beat the Reed?
As a common perennial Gramineae plant, Phragmites communis is stubborn in the hearts of many farmers. It is difficult to eradicate at once, and every time it is not done properly, it will lead to crazy growth. Therefore, it is also a technical skill in choosing pesticides, so what kind of medicine is most suitable for beating Reed?
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