Strawberry water and fertilizer integration technology
Technical content: laying of irrigation pipes. Before planting, you need to prepare the ground, apply base fertilizer, do hoeing, lay drip irrigation, and install fertilizer applicators. Lay one or two drip irrigation capillaries (drip irrigation belt or one micro-spray belt) at the middle position of two rows of strawberry plants.
Fertilizer preparation. According to the requirements of the fertilization scheme, firstly dissolve the fertilizer in water, pour the fertilizer liquid into a differential pressure fertilization tank, or pour it into an open container and inhale it with a venturi fertilizer.
Differential pressure fertilization method: The fertilization tank is connected in parallel with the pressure regulating valve on the main pipe, and the water inlet pipe of the fertilization tank must reach the bottom of the tank. Irrigation water is applied for 20 to 30 minutes before fertilization. When fertilizing, tighten the lid of the tank, open the water inlet valve of the tank, and then open the water outlet valve of the tank after the tank is full of water. Fertilization time is generally controlled within 40 to 60 minutes to prevent uneven or insufficient fertilization.
Venturi fertilization method: The Venturi device is connected in parallel with the valve on the main pipe. The previously dissolved fertilizer liquid is poured into an open container, and the tip of the Venturi device is put into the fertilizer liquid. Do not place the tip on the bottom of the container. Open the valve on the straw and adjust the valve on the main pipe so that the straw can absorb the fertilizer liquid uniformly and stably.
Drip irrigation scheme: The principle of applying a small number of times to fertigation must be adhered to. Transplanted to flowering period every 5 to 7 days, drip irrigation once every 8 to 10 m / mu; every period of flowering to swelling period to drip irrigation once every 5 to 7 days, every drip irrigation 5 to 8 m / mu; Drip irrigation once every ～ 8 days, 6 ～ 8 square meters / mu each time.
Irrigation operation: The valve on the fertilization tank (applier) should be closed during irrigation, the control valve of the branch pipe of the drip irrigation system should be fully opened, and the irrigation should be carried out according to the drip irrigation scheme. At the end of the irrigation, the power is cut off and the control valve is closed immediately. Wet depth of drip irrigation is generally 30 cm. The principle of drip irrigation is to use a small number of times. Do not prolong the time of drip irrigation to achieve the purpose of more irrigation.
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