Tomato high yield and best fertilization period
Elevator Electrical Components The electrical control system of the elevator consists of control device, control device, leveling device, and position display device. The control device controls the operation of the elevator according to the logic function requirements of the elevator, and is set on the control cabinet in the machine room. The control device controls the operation of the elevator by the button box in the car and the call box button in the hall door. Leveling device is a control device that sends leveling control signal to make elevator car level accurately. The so-called leveling refers to the operation to make the car sill and hall sill reach the same plane when the car is approaching the stop on a certain floor. The position display device is used to display the indicator lights in the car and the landing door of the floor where the elevator is located, and the landing door indicator light also indicates the running direction of the elevator with a tip. China Elevator Electrical Components,Elevator Electrical Parts,Electrical Elevator System,Elevator Electrical Components Inside, we offered that you can trust. Welcome to do business with us. Elevator Electrical Components,Elevator Electrical Parts,Electrical Elevator System,Elevator Electrical Components Inside Suzhou Stable Trade Co., Ltd , https://www.stable-elevator.com
First, the base fertilizer is applied during the planting period. Before the transplanting of tomato seedlings, 1000 kg of high-quality farmyard manure, 10 kg of urea, 10 kg of ammonium phosphate, 40-50 kg of superphosphate; or 1000 kg of high-quality soil and potassium ternary compound fertilizer 25- 50 kg, 10 kg of urea.
Second, fertilization during the strong period. When the tomato seedlings grow to 5-6 leaves, foliar spray can be applied if the leaves become lighter. The commonly used fertilizers include 300 times urea solution, 300 times potassium dihydrogen phosphate solution, 500 times Hexin liquid fertilizer, 0.1-0.3% potassium sulfate compound fertilizer solution, and sprayed once every 10 days in the strong period, while the leaf surface Spray fertilizer can be combined with the prevention and control of pests and diseases in this period.
Third, the result period is timely fertilizer. When the diameter of the first fruit of the tomato is 1.5-2.5 cm, the top dressing is watering, generally 15-20 kg of ammonium nitrate per acre, 20-30 kg of superphosphate; or 5 kg of urea, potassium sulfate compound fertilizer 10- 20 kilograms, after the ground is applied, the water is applied. When the second and third fruit diameters are as long as 3 cm, the second and third fertilization water treatments are respectively carried out, and 10 kg of urea per acre and 15-20 kg of potassium sulfate compound fertilizer are used, and the fertilization method is the same as the first time. In the fruit-bearing period, foliar spray fertilizer can be combined with spraying, and fertilizers such as potassium dihydrogen phosphate, Hexin liquid fertilizer and superphosphate can be sprayed, which is beneficial to the coloring and quality improvement of the fruit.
Author: Wang Lili
Source: "Fruits and Vegetables"