Cultivation techniques of Dutch Bean in greenhouse

Soil preparation sowing is mainly direct seeding, ridge cultivation or border cultivation, 2000 kg of organic fertilizer and 20 kg of superphosphate are applied per mu before sowing, and ridges or beds are made after ploughing and leveling. In order to promote early maturity and decrease the flowering node position, the seeds should be soaked to promote germination before sowing. The seeds should be soaked for 2 hours at room temperature and placed for 5 days under the condition of 5 ℃ ~ 6 ℃. When the buds grow to 5 mm, the dry seeds should be watered in time. Strip sowing is adopted, with row spacing of 30 cm to 40 cm, plant spacing of 8 cm, covering soil of 2 cm, 15 kg of dwarf species per mu and 12 kg of trailing species per mu.

Field management is not watered before seedling emergence, and during the vegetative growth period after seedling emergence, it is mainly ploughing and weeding, properly watering and not cracking. The trailing species set up when the vine is 30 centimeters long. Pour a little water before the bud, but don't water it during the florescence.

Dutch beans have the ability of nitrogen fixation and do not need a lot of fertilizer, but most varieties have strong growth potential and high cultivation density, and they usually need topdressing for 3 times, and apply compound fertilizer 15 kg per mu or human fecal urine 400 kg per mu for the first time. 15 kg of phosphate potassium fertilizer, 15 kg of diammonium phosphate per mu and 5 kg of potassium sulfate or potassium chloride per mu can obviously increase the yield.

When the plant grows to 15 nodes, the heart is removed, and the lower old leaves and yellow leaves are removed to improve ventilation and light transmission conditions. In order to avoid falling flowers and pods, you can use 30 mg per liter of anti-falling hormone spray.