Технологическая карта выращивания leaf cabbage в гидропонике

1. Sowing seeds

Длительность этапа:3 дня

* Preparing the substrate. The substrate for cultivation can be different – organic (peat, coconut) or inert (mineral wool, expanded clay, perlite). An example of a substrate: a mixture of top peat (5-15 mm) and agroperlite in a ratio of 4:1. The optimal pH level for peat substrate is 5.8-6.2, EC 1.2 mS/cm.
* Preparing the cups. Before filling, the cups are placed in special reusable plastic cassettes (previously cleaned and disinfected). After the substrate is poured onto the cassette, it is distributed across the entire surface of the cassette in circular motions. The cups D6 should be filled with substrate level with the edge, and the substrate should not be compacted. The weight of a standard salad cup with the correctly prepared and packed substrate is 38-42 g.
* Sowing. Sow 3-5 seeds in each cup and cover them with substrate or vermiculite.
* Watering and covering. After sowing, the cassettes are watered (the pot should weigh 48-50 g) and covered with non-woven material or placed in a germination chamber.

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2. Seedling care

Длительность этапа:14 дней

* Transplanting the seedlings into the seedling compartment.
* Lighting. After placing in the seedling compartment, the seedlings begin to be supplemented with light. Lighting power is 100-130 W/m².
* Treatment with bioinsecticides. Seedlings at the 2 true leaf stage are treated with bioinsecticides to prevent aphids.

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3. Transplanting to a permanent location and plant care

Длительность этапа:35 дней

* Installing in a permanent position. When the seedlings form 2-4 leaves and individual roots exit through the pot's holes, they are placed in hydroponic modules. Ensure roots reach the film of the nutrient solution.
* Watering. Change the nutrient solution every 2-3 weeks. The electrical conductivity of the solution in the autumn-winter period should be 2.0-2.2 mS/cm, in the spring-summer – 1.5-1.7 mS/cm depending on lighting and temperature.
* Treatment with biofungicides. For the protection of plants against powdery mildew and other foliar infections, preventive spraying is recommended.

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4. Harvesting

Длительность этапа:3 дня

* Harvesting. Harvesting of cabbage begins as soon as the leaves reach the desired size and quality. It is important to harvest in the morning or evening when the temperature is lower to avoid wilting of the leaves.

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5. Preparation for a new growing cycle

Длительность этапа:14 дней

* Cleaning the system. Remove remnants of the previous substrate, roots, plants, and other organic materials.
* Disinfection. Fill the system with a hydrogen peroxide solution (3%) and leave for 1-2 hours. After disinfection, rinse the system with clean water three times to remove residues of disinfectants. Cassette intended for reuse must be washed and disinfected in a hydrogen peroxide solution.
* Checking and adjusting the heating and ventilation system.
* Checking and servicing the lighting system.

6. Storage after harvest

Длительность этапа:10 дней

Products should be stored at a temperature of 0–5°С and relative humidity of 90–95% – for up to 10 days; at a temperature of 4–5°С and relative humidity of 90–95% – for no more than 5 days.

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