1. Deep application of urea Regardless of whether urea is used as base fertilizer or top dressing, it should be applied deeply over the soil, and the fertilization depth should be 10 cm ~ 12 cm; deep application of urea can significantly increase the utilization rate. According to experiments, urea surface application or shallow application of 2 cm ~ 3 cm, the utilization rate is only 30%; fertilization depth of 5 cm, the utilization rate is 45%; deep application of 10 cm to 20 cm, the utilization rate can reach 65%. 2. Early application of urea Urea belongs to ammonium amide nitrogen fertilizer, which cannot be directly absorbed and utilized by crops after being applied to the soil. It needs to be converted into ammonium nitrogen under the action of urease in the soil to be absorbed by the roots. If the application time is too late, not only is it not conducive to the effect of fertilizer, but also may cause crops to be greedy and late. Three, spray urea Urea has a small molecule size and is easily absorbed by leaves. It is the most suitable fertilizer for foliar spraying. Foliar spraying is highly targeted, has a fast absorption rate, is not affected by soil environmental factors, has high nutrient utilization, and has a small amount of fertilizer, and the effect of increasing yield is obvious, especially when the soil environment is poor, excessive moisture or drought, and the soil is too acid or excessive. When root absorption is hindered by alkali and crops are in urgent need of nitrogen nutrition and root vitality declines in the later stage of crop growth, foliar spraying can make up for the lack of fertilizer absorption by roots. Four, mixed urea Applying urea in combination with organic fertilizers, phosphorus and potassium fertilizers and trace element fertilizers can maintain soil nutrient balance, maximize nutrient utilization and increase fertilizer production. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
A coin-operated safe is a secure storage device that requires the insertion of a specific denomination of coin in order to unlock and access its contents. It is typically used in public settings such as laundromats, locker rooms, or amusement parks, where individuals may need a temporary storage solution for their valuables.
The coin-operated safe is constructed with durable materials such as steel to ensure its resistance to tampering or forced entry. It features a coin slot on the front panel, where users insert the required coin to initiate the unlocking mechanism. Once the coin is inserted, the safe's door can be opened to reveal the storage compartment.
The size of the coin-operated safe may vary depending on its intended use. Some models are designed to hold small personal items like wallets, keys, or mobile phones, while others are larger and can accommodate larger items like bags or jackets.
To ensure security, the safe is equipped with a robust locking mechanism that engages once the door is closed. This prevents unauthorized access and provides peace of mind for users. Additionally, many coin-operated safes have additional security features such as electronic locks, combination locks, or key locks to further enhance protection.
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