Planting techniques of coriander in greenhouse

Coriander is a common flavor vegetable in our life, which is favored by consumers. With the development of planting industry, many vegetables are planted through greenhouses, and the profits of planting coriander in greenhouses are higher. So how to plant coriander in greenhouse to make coriander grow better? Let's take a look at the greenhouse coriander planting technology.

1. Soil preparation and fertilization

Before planting, soil preparation and fertilization should be carried out on the plot, and sandy loam with loose and fertile soil and good drainage should be selected for planting. Combined with ploughing, 3000 kg of decomposed manure should be applied per mu as base fertilizer, and then 2-meter-wide beds should be made. If the soil is too dry, water it to keep it moist. After raking and leveling the soil, wait for sowing.

2. Select good seeds

Greenhouse coriander generally choose faster growth, heat resistance, disease resistance and adaptability varieties, and coriander can be divided into large leaf and lobular varieties, lobular varieties yield although not as good as large leaf varieties, but its fragrance is rich, and cold resistance and adaptability, so generally choose lobular varieties.

3. Germination and sowing

Coriander is cool and suitable for growing at a temperature of 15-20 degrees, so the sowing time is generally from August to April. In order to improve the germination rate and make the seedlings neat before sowing, it is generally necessary to carry out germination treatment first. First, the seeds are put into warm water of about 50 DEG C, continuously stirred and soaked for 15-20 minutes, and after the water temperature drops, the seeds are continuously soaked for 18-20 hours, and the seeds are put into a greenhouse environment for germination, and soaked once every 2-3 days. Generally, after 10 days, the seeds can be sown after being exposed to white. Sowing can be drilled or broadcast, generally sowing 2 kg per mu, after sowing to cover a layer of straw on the ground, and often spray water, keep wet, and when the emergence of straw to be removed in time, and do a good job of thinning seedlings, seedlings.

4. Field management

Coriander likes cold, but afraid of high temperature and strong light, so consider setting up a shade net when planting, play a role in shading and cooling, so as to benefit the growth of coriander and improve yield. In the seedling stage can be combined with loose soil, the weeds in the field will be uprooted, so as not to seize nutrients, in the growth period to maintain the soil is not dry and not wet state, in the seedling stage as little as possible watering, and in the vigorous growth to supply sufficient fertilizer water, so that its rapid growth, fertilization with urea and nitrogen potash fertilizer mainly, topdressing 10-15 kg per mu, can be carried out together with watering.

5. Harvest

Because coriander grows faster in greenhouse, it should be harvested in time after reaching the harvest standard to avoid bolting phenomenon. Generally, coriander can be harvested when it grows to 25cm. Harvest time should be well controlled, preferably in the morning and afternoon harvest, so as to enhance the value of commodities.

The above is greenhouse coriander planting technology, hope to help you, want to know more greenhouse planting knowledge, please pay attention to us.