What are the techniques for growing vegetables in greenhouses?

(1) Soil treatment: Before planting, the soil in the greenhouse must be treated, such as cleaning stones with more stones; if the soil has a knotting phenomenon, the application of multiple phosphate fertilizers can be used to release the knot, which is good for greenhouse construction, and if necessary, the greenhouse Change the soil.

(2) Conventional nursery technology program: Conventional nursery greenhouse, the production process includes: seed selection coating, nutrient soil treatment, plate loading, pressure hole, sowing, covering, water spraying, germination to greenhouse domestication. The main cultivated varieties include: vegetables, such as Chinese cabbage, melon, green pepper and other conventional vegetables and some new varieties of test species.

(3) Insulation technical plan: conventional seedling greenhouse heat preservation technology, Hebei greenhouse construction, to dig deeper than 0.5 meters, fill high-quality acidic soil 50 cm, and cover with plastic film.