The integration of water and fertilizer is based on the soil nutrient content and the fertilizer requirements and characteristics of the crop types, using the pressure system (or the natural drop of the terrain) to mix soluble solid or liquid fertilizers, and the fertilization solution and irrigation water together provide water and fertilizer through a controllable pipeline system . After the water and fertilizer are melted, drip irrigation is formed through the pipe and dripper, which penetrates into the crop root growth area evenly, regularly and quantitatively, so that the main root soil always maintains a loose and suitable moisture content; at the same time, according to the characteristics of different crops’ fertilizer needs, soil environment and nutrients The content conditions, water requirements of different growth periods of crops, and fertilizer requirements of different growth periods are designed to quantify water and nutrients, and directly provide them in proportion to the crops.
Function of integrated water and fertilizer control system:
1. Water consumption control and management
Realize two-level water meter measurement. Through the water outlet flow monitoring as the total water measurement of the area, the data collected by the pressure sensors of each branch is used to calculate the water volume of each branch in real time. Combined with the automatic valve control function, each valve control unit can be realized. Water consumption statistics. At the same time, the water pump introduces flow control. When the total water consumption is exceeded, it will be remotely controlled to limit the area's water consumption.
2. Real-time monitoring of operating status
Through the water level and video monitoring, the water source status of the drip irrigation system can be monitored in real time, and the water shortage warning can be issued in time; through the current and voltage monitoring of the water pump, the outlet pressure flow monitoring, the pipe network branch flow pressure monitoring, timely detection of the drip irrigation system burst, water leakage, low pressure operation, etc. For unreasonable irrigation events, promptly notify system maintenance personnel to ensure the smooth operation of the drip irrigation system.
3. Automatic valve control function
Through real-time monitoring of farmland soil moisture information, meteorological information and crop condition information (leaf temperature, leaf surface humidity, fruit swelling, and stem micro-change sensors to collect information), comprehensively intelligently judge whether irrigation is needed, and use wireless or wired technology to achieve valve activation. Turn off and turn on and off at regular intervals. According to the collected information, combined with the water demand of local crops and rotation irrigation conditions, the pumps and valves are automatically turned on to realize unattended automatic irrigation and slicing control to prevent human misoperation.
