At present, the development speed of planting industry is very rapid, and the planting technology is also constantly improving. If the greenhouse planting technology is reused, it can basically be planted all year round. But if you sow in the open field, it is usually in March-April in spring or September 9- 10/October in autumn. In fact, the planting time is closely related to the climate, temperature and other factors in the planting area. As for the specific planting time, it can be determined according to the temperature rise of local soil.

2. Soil preparation

The growth of wild vegetables is generally vigorous, and the requirements for the soil in the planting area are not very high, so the general soil surface can grow normally, but there is a key condition, that is, the accessories in the planting area should have sufficient water sources, or the plots with convenient drainage and irrigation are better. After selecting the planting site, soil preparation should be carried out. Dig deep when preparing soil, the depth is generally 30 to 40 cm, then break the clods and plough the soil as thin as possible. Finally, sprinkle enough farm manure on the planting area. Ditches should be built in the field to facilitate later management.

3. Temperature

Temperature management after sowing is very important, and temperature is directly related to the emergence and later growth of noodles. After sowing, the temperature in the field should be controlled at 15-20 degrees, and the temperature in the planting area should be controlled at 20-25 degrees about one week before emergence, so that the seeds of noodle vegetables can germinate faster. After 70% of the seeds in the planting area have emerged, it is necessary to observe the field situation in time, replant the seedlings in time, and finally remove the straw or plastic film in time.

Step 4 manage

Fertilizer and water management, weeding and pest control in the later stage directly affect the yield and quality of noodle dishes. Water before emergence to keep the soil moist, so as to avoid soil hardening and affect the growth of seedlings. When most seedlings have germinated, we need to spray foliar fertilizer to promote the growth of seedlings, so as to achieve the effect of uniform and strong seedlings. When the noodles grow three or four real leaves, make reasonable loosening. Oviposition is the vigorous growth period of noodle dishes. There is a great demand for water at this time. Scientific watering, weeding and fertilization should be combined to promote seedling growth. The most common diseases and insect pests of noodle dishes are downy mildew, aphids and cabbage caterpillar, which can be sprayed with professional chemicals.