Vegetable nitrogen control fertilization technology
Raykai provides many options to meet different customer's requirements. You can get a suitable laser holder as per your actual installment.
Option 1:
One hole for the laser and the other hole for the rail. It is more convenient for horizontal movement and vertical rotation.
A hole to install laser, and the other hole sleeve on the cross bar. the bracket can move left and right, and can rotate up and down. It`s very convenient.
Option 2:
The bracket can be adjusted to random angles.
This bracket can rotate by 360 degrees arbitrarily to adjust to various installation positions.
Option 3:
This bracket is of good heat dissipation. It`s perfect match with vertical and horizontal surface and more stable.
I-shaped bracket has good heat dissipation performance. It can be installed in any vertical or horizontal positions and fits the installation surface completely. It is more stable.
Option 5:
This bracket is made of Aircraft Aluminum and can be little affected by vibration with little screws. It can be adjusted to different angles and well-matched gaps horizontally.
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In fact, excessive application of nitrogen fertilizer in vegetables poses a serious threat to people's health. The nitrate content of vegetables with excessive nitrogen application is 20-40 times that of normal conditions. Nitrate is converted into nitrite during transport or storage in the human body or in vegetables. Nitrite combines with various amines in the human body to form a strong carcinogen, nitrite.
Excessive application of nitrogen fertilizer also causes serious pollution to soil and water. Long-term application of large amounts of nitrogen fertilizer, especially ammonium sulfate, chlorination, etc., will gradually acidify the soil. The toxic substances such as sulfate, chloride and biuret remaining in the soil gradually reduce the microorganisms and cockroaches in the soil. The acidification of the soil also accelerates the leaching of nutrients in the soil, eventually causing the soil to be compacted and losing the value of cultivation.
Vegetables should pay attention to the application of nitrogen fertilizer. When applying nitrogen fertilizer, it is necessary to measure the amount to prevent excessive. Non-polluted cultivated vegetables should be banned from nitrate-nitrogen fertilizer and compound fertilizer produced from nitrate-nitrogen fertilizer. Adopt scientific fertilization method: the base fertilizer is mainly composed of decomposed organic fertilizer, and combined with phosphorus and potassium fertilizer. Topdressing should be based on the amount of fertilizer needed in different growth stages of vegetables. Note that the base fertilizer should be applied layer by layer, deep application or ditch application. Foliar spray or combination with watering and top dressing. Vigorously promote organic fertilizer and reduce the amount of nitrogen fertilizer. It is necessary to use more fully-fertilized high-quality livestock and poultry manure and other manure, and rational use of human excrement. Manure must be treated by accumulation, full fermentation, etc., and can be fermented by biogas at high temperature. Human excrement should be stored in a septic tank for fermentation, and add 3-5% superphosphate and gypsum powder to reduce the volatilization and loss of ammonia.