When Is the Best Time to Water Wheat for Green-Up

AbstractThe time to water wheat for green-up is generally in late March, when temperatures begin to warm up and the wheat enters the green-up stage. The specific time can be decided according to the growth of the wheat. If the wheat seedlings are growing well, the green-up watering can be delayed appropriately, so as to prevent the wheat from growing too fast and lodging. If sowing was relatively late and the field soil quality is poor, the green-up water should be applied in time. When applying the green-up water, it can be used together with fertilizer to promote the growth of the wheat seedlings and increase yield.

1. When to Water Wheat for Green-Up

1. Generally, after late March, temperatures begin to warm up, and as the temperature rises, the wheat quickly enters the green-up stage.

2. Watering for green-up should be decided according to different situations. If compaction was carried out in winter or early spring, and the wheat seedlings are growing well, watering can be delayed appropriately to avoid the wheat growing too fast and the plants becoming too vigorous and lodging.

3. If the wheat was sown relatively late and the field soil quality is relatively poor, the green-up water should be applied in time.

4. Watering for green-up should be based on weather conditions. If the forecast shows that the temperature will be relatively high and sunny for about a week, and the daily average temperature is 3°C, the green-up water can be applied. This is beneficial for the wheat to green up and stand up and to grow into strong seedlings.

5. For ordinary wheat fields, watering should be delayed or the green-up water should not be applied, and the green-up water should be postponed until the standing-up or jointing stage.

6. For wheat fields with a small population and poor growth, about 10 kg of urea can be applied as a topdressing when watering for green-up. This can promote the growth of the wheat seedlings and increase yield.

2. How to Judge That Wheat Has Reached the Green-Up Season

1. Because the climatic conditions in different places are different, the green-up time of wheat is also different.

2. Generally, the green-up time of wheat is from late February to late March.

3. Green-up means that after the wheat overwinters, the overwintering leaves and heart leaves of the wheat seedlings resume growth and gradually turn green.

4. During this period, the seasonal temperature is unstable and prone to sudden changes between cold and warm, and the temperature difference between morning and evening is relatively large. Watering for green-up needs to be handled flexibly to avoid freezing and damaging the wheat seedlings.

5. After the temperature stabilizes, watering for green-up can begin. However, when watering, the amount of water must not be too large, and the wheat field should be appropriately given more phosphorus fertilizer, potassium fertilizer and other fertilizers, and the field humidity should be controlled.

6. For first-class seedlings with a relatively large number of seedlings, fertilization is not necessary.

3. Does Wheat Need Fertilizer When Watering for Green-Up

1. Green-up water and fertilizer should be applied according to the growth of the wheat and the water-holding capacity of the field.

2. In most areas, fertilization is carried out from late February to early March. For wheat seedlings with relatively weak growth and relatively small leaves per plant, watering and fertilization should be done in time during the green-up stage.

3. For wheat fields where the wheat seedlings are growing normally, watering and fertilization can be postponed until the late jointing stage.

4. Fertilizing during the green-up stage has certain benefits for the growth of weak seedlings and the increase in the number of ears, so weak seedlings caused by insufficient soil fertility and other reasons should be fertilized in time.