Soilless cultivation technique of coriander and the general process of soilless cultivation of coriander

How do you grow coriander without soil? With the development of science and technology, the planting technology of coriander is constantly changing, after a process of soil culture-substrate culture-soil culture, and soilless culture of coriander is to borrow a series of cultivation facilities and prepared nutrient solution and other modern technologies to cultivate coriander, both save trouble and labor, now the soilless culture technology of coriander is introduced to you as follows:

1. The process of soilless cultivation of coriander

1)Choose a good base, preferably a well-ventilated area, water and electricity.

2)In the construction of the base, especially the construction of greenhouses, all the side films and skylights in contact with the outside world should be isolated with insect nets.

3)The foam board is used as a cultivation board for cultivating plants, and holes are punched on the board according to a certain plant spacing and row spacing, and can also be determined according to the size of the cultivated plants. The specification of coriander cultivation is generally 80 plants per cultivation board.

4)Sowing, coriander seeds are generally sown in autumn and winter, when the temperature is suitable for seed germination, if the temperature is high, it needs low temperature germination. After the seeds are treated, they are sown in sponges of similar size. Since the seeds of coriander are dicotyledonous, they should be sown shallowly. After sowing, the seeds of plants should be centrally managed in one place. Water should be sprayed regularly to keep the humidity of sponges fast, so as to facilitate better and faster germination. After the seeds sprout, they grow two cotyledons. At this time, we should start spraying nutrient solution to ensure the absorption of nutrients. It is also to improve the sturdiness of seedlings and lay a foundation for rapid growth in the future. When the coriander seedlings have 3-4 leaves, they can be transplanted to the cultivation seedling bed for cultivation.

Second, the management after transplanting generally refers to nutrition management and pest management.

Nutrition management, two aspects, one is the plant roots absorb most of the nutrients, where the nutrients are generally recycled to save unnecessary waste. According to the growth stage of coriander, the EC of general seedling nutrition is generally between 1.0-1.2, the middle stage is between 1.4-1.6, and the concentration can be increased to 1.8 before harvesting to improve the growth potential. The second is to spray foliar fertilizer regularly in the cultivation process to promote the effect of light and improve the formation of chlorophyll in the body, and avoid yellowing caused by insufficient light.

Pest management is primarily based on prevention. The anti-washing net in the outer space can prevent pests from entering the greenhouse, and the whole sterilization and disinfection for many times before cultivation can reduce the incidence and pest frequency in the future, and truly achieve pesticide free cultivation. In addition, ultraviolet sterilization lamp and strong magnetic generator are used to treat the nutrient solution, which improves the activity and sterilization of water.

III. Harvesting

When coriander cultivation to about 20-30 days can be harvested, using this planting mode, coriander harvest is very convenient and there is no soil, very clean. Even if it is not sold that day, it can still be kept fresh by soaking it in water.

The soilless culture of coriander is convenient to fertilize, and does not need pesticides. It is green and healthy. This quality of coriander is very popular in the market, and can realize anti-seasonal planting, effectively improving the planting benefit of coriander.