Nowadays, many growers are gradually adopting soilless cultivation techniques. So, what are the main points of the system construction of soilless culture facilities? How to do nutrition management in soilless culture? Today, Xiaobian will briefly talk about the structure and nutrition management of organic ecological soilless cultivation facilities, and I hope that it will help everyone.
1 Facility system construction
a. The organic ecological soilless culture system adopts the form of matrix trough culture. It is possible to use local readily available materials to build troughs, such as wood boards, wood strips, bamboo rafts and even bricks. It is only necessary to keep the substrate not scattered on the walkway during construction. .
b. After the matrix tank frame is built, a 0.1 mm thick polyethylene plastic film is laid on the bottom of the tank to prevent soil pests and diseases.
c, the groove frame height is 15-20 cm, the groove width is determined by different cultivated crops, such as cucumber, melon and other vine crops or plants with tall plants and brackets, the standard width of the cultivation trough is 48 cm, which can be cultivated. Two rows of crops, the cultivation trough is 0.6-1 meters. For lettuce, rapeseed, strawberry and other plants with relatively short crops, the width of the cultivation trough can be set at 72 or 96 cm, and the cultivation trough is 0.5-0.8 m. The length of the trough should be determined according to the construction condition of the shelter room, generally 5-30. Meter.
d. Under the conditions of tap water infrastructure or water storage tank with a water level difference of more than 1 m, a single independent shed water supply system can be established, with a cultivation tank width of 48 cm, a drip irrigation belt of 1-2, and a cultivation tank width of 72- 96 cm, you can lay 2-4 roots with drip irrigation.
2 Nutrition Management
a. Organic ecological soilless culture fertilizers with N, P and K as the main indicators, the fertilizer applied per cubic meter of substrate should contain: total nitrogen (N) is 1.5 to 2.0 kg, and total phosphorus (P2O5) is 0.5. ~0.8 kg, total potassium (K2O) is 0.8 to 2.4 kg.
b. In order to be in the best fertilizer state during the whole growth period of the crop, the fertilizer is usually applied in stages according to the type of crop and the fertilizer applied.
c. The ratio of base fertilizer to top dressing is 25:75 to 60:40, and the amount of substrate topdressing per cubic meter is 80-150 grams of total nitrogen (N), 30-50 grams of total phosphorus (P2O5), and total potassium (K2O). 50 to 180 grams. The number of top dressings depends on the length of the crop growing season.
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different types of the walnut has the different color of the skin of the Walnuts kernels , the little darker color of the light amber color halves is only caused by the different type of the walnuts naturally.
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