When is the highest yield of vegetables watered?

1. Planting water should be adapted to the time.

The temperature is high in summer and autumn. Generally, seedlings should be transplanted in the afternoon or evening. After planting, they should water them closely. If it is not watered thoroughly, you can water it again the next morning. When the temperature is low, we should always pay attention to the weather changes, and generally choose to transplant in the morning after the bad weather. Usually, you should choose the period of cold tail and warm head when watering.

The watering time of vegetables is particular. Is your watering method scientific?

2. Water demand will change with different growth periods.

Take cucumber as an example. In sunny days, water control should be mainly before fruiting, and the seedling stage should be postponed, and watering should be 7- 10 day/time. At the same time, hoes can cooperate with watering, reduce soil moisture evaporation, promote root penetration, and lay a solid foundation for high yield in the later period. During the full fruit season, water should be increased for 3-4 days/time, and water and nutrients should be added to the plants in time.

3. When to water, you should "watch it three times".

Water should be combined with plant growth, soil moisture and weather conditions.

The first is to judge the water demand according to the plant growth. For example, the growing point of cucumber shrinks into a ball, the stem must be circled, not elongated, the leaves are dark green, and the melon strips are dark and pointed, indicating that the plant is short of water;

Secondly, look at the degree of soil dryness and wetness. Make sure that the soil is wet when it is dry. At the initial stage of growth, proper water control is the main method, and the roots are led down. After entering the fruiting period, plants have a great demand for water and fertilizer, so it is necessary to increase the number of watering. However, it is necessary to irrigate with small amount of water frequently to avoid fruit cracking due to large changes in soil moisture.

Then look at the weather. This is divided into two parts. First, pay attention to the weather changes in time, do not water before rainy days, and choose to water in sunny morning to reduce the excessive humidity at night caused by watering in the afternoon. After watering the same day, increase ventilation the next day to reduce the humidity in the shed as soon as possible; Second, different seasons make different watering. At present, the evaporation of plants is large, and the watering times are many, so the soil cannot be too dry.