The method of soilless cultivation of cress is to first prepare a hydroponic container, a round-hole fish tank, and a hydroponic nutrient solution, pour 1/3 of the water into the container, and put the cut cress seedlings in and fix them. After half a month, cut off the new shoots and use them. Repeat this cycle for about five times. During the hydroponics process, the temperature must be controlled at 17 to 24 degrees Celsius. The temperature of the nutrient solution should be about 19 degrees Celsius. Cress must be watered with nutrient solution every day.

Cress soilless cultivation yield

Cress soilless cultivation is very good. Water replaces soil, which is cleaner and hygienic, odorless and tasteless, and saves the process of changing pots and loosening soil. Cress It can reach 12,000 kilograms at a time. If multiple crops are harvested, it can be cut 5 to 6 times a year, and the yield per mu can reach 20,000 to 30,000 kilograms, which is more efficient.

Cress soilless cultivation technology and cress soilless cultivation medium

For soilless cultivation of cress, you must first make a tank with a depth of about 20 cm and a width of about 80 cm. The distance between the grooves is about 25 cm, and then the rock wool matrix is ??filled in the grooves, and the celery seedlings are planted at a distance of 8 to 10 cm. Be sure to replenish the nutrient solution in time after planting

The nutrient solution for soilless cultivation of water celery

Major elements 0.5~1.5 parts, trace elements 0.002~0.01 parts, active substances 0.05~0.5 parts, and deionized water 500~2000 parts, respectively use macroelements, trace elements, and active substances to make a mother solution A. Mother liquor B, mixture C. Mix mother liquor A and mother liquor B and add mixture C. Stir evenly.

The process of soilless culture of cress

1. First prepare the hydroponic container, round-hole fish tank, hydroponic nutrient solution, and cress seedlings. Cress seedlings can be purchased in the market. For some plants with relatively intact roots, cut off the leaves, leaving only the bottom and roots.

2. Pour 1/3 of the water into the container, put the cut cress seedlings into the container and fix them with a planting basket, but be sure to change the water at least twice a week. water.

3. The new shoots of cress can be cut and used after half a month. Pay attention to adding water culture medium every time you cut them. Cress can generally be harvested about five times.

Technical Points of Soilless Celery

1. Selection and seedling cultivation: There are two main types of celery: solid straw celery and empty straw celery. Solid straw celery has full petioles and strong adaptability. , high yield, resistant to storage, but slow to grow. Empty straw celery has hollow petioles and grows faster.

2. Cultivation method: The soilless cultivation method of celery is mainly rock wool cultivation. First, the ground is leveled, the soil is compacted, and then a trough is made that is 20 cm deep, 100 cm wide, and 10 cm long. Lay a layer of polyethylene film in the tank, and then fill it with rock wool and other substrates.

3. Planting: Strengthen fertilizer and water management before and after celery emerges. When the seedlings grow two or three true leaves, they can be planted. Choose strong-growing seedlings for cultivation. Plant the seedlings according to a spacing of 1010cm between rows. After planting, they should be planted in a timely manner. Supply nutrient solution.

4. Cultivation and management: Celery can be mixed with compound fertilizer. Note that the pH value should be between 6-6.5. The suitable temperature for celery growth is 18-25 degrees, so the temperature should be adjusted every time you water the nutrient solution. To control this temperature, it is generally necessary to water the nutrient solution two or three times a day during the vigorous growth period, and the amount can be reduced accordingly in the early and late stages.

Notes on soilless cultivation of cress

1. Temperature: Cress likes shade and humidity, so temperature is the first priority. The temperature must be controlled at 17 to 24 degrees Celsius. The temperature of the nutrient solution should be around 19 degrees Celsius. Remember, the temperature of the celery root system should not be lower than 15 degrees Celsius for a long time, which is very detrimental to the rooting of celery.

2. Watering: Unlike land cultivation, cress cannot absorb corresponding trace elements from the soil. However, if celery needs to grow, nutrient solution is the most important and must be watered every day.

3. Nutrient solution: When cress grows, it needs to be harvested once every two months to prevent the celery from absorbing nutrient solution for a long time, which will cause the celery to age and taste bad, and the growers will also The harvest can be reasonably allocated according to market demand.