When will the green water pour?

It is better to irrigate the green water in the green period of wheat.

First, if winter wheat is inhibited in winter or early spring, according to the greening situation, the wheat fields with good seedling conditions can be watered late at the right time. Avoid lodging caused by excessive growth of wheat and vigorous growth of plants.

Second, all wheat fields that grab soil moisture before winter and sow late, are not irrigated in winter, have poor quality of cultivated land, and have serious soil moisture loss in the field, as well as individual wheat fields with poor development, small population and severe drought, should be turned green and watered in time. According to the weather situation, if the weather forecast is that the temperature is high, it will be sunny in a week or so, and the average daily temperature is 3℃, you can water the green water. Conducive to winter wheat turning green and growing strong seedlings.

Three, if the general wheat field as long as the soil moisture permits, should be postponed or not watered green water, green water will be postponed to get up or jointing stage; For wheat fields with small population, poor growth potential or strong growth potential before winter and weak growth potential in spring, urea 10 kg can be applied in combination with watering. After watering, when the moisture content of wheat fields is suitable, the fields can be hoed in time to conserve moisture.

Wheat growing environment

Deep soil layer, good structure and deep tillage layer are beneficial to water storage and fertilizer conservation and promote root system development. Soil structure refers to the proportion of solid (organic and inorganic), liquid and gas, which is closely related to soil moisture, air, temperature and nutrients. For example, sandy soil and heavy clay have poor structure and are difficult to form high yield.

The average daily temperature of winter varieties is 16 ~ 18℃, semi-winter varieties are 14 ~ 16℃, and the elasticity is 12 ~ 14℃. Temperature and air are affected by geographical latitude and altitude, that is, the higher latitude and altitude, the lower temperature and the earlier sowing date.

Wheat crops with long sunshine time (8 to 12 hours per day), if the sunshine conditions are insufficient. Can't pass the light stage, can't knot, can't bear fruit. The photoperiod of wheat is after vernalization.