When is the most suitable time to irrigate wheat in northern rural areas?

Generally speaking, the time for watering wheat with green water is in late March, when the temperature begins to warm up and wheat enters the period of returning green water to the field. The specific time can be determined according to the growth of wheat. If the wheat seedlings grow well, they can be watered with green water at an appropriate time in the later period to avoid lodging caused by excessive growth of wheat. If sowing is late and the quality of cultivated land is poor, it is necessary to water green water in time. When watering green water, green water and fertilizer can be used together to promote the growth of wheat seedlings and increase yield. Generally speaking, after the end of March, the temperature began to warm up. With the increase of temperature, wheat is about to enter the green period. According to different situations, determine the green water. If it is inhibited in winter or early spring, the growth of wheat seedlings is relatively good, and it can be watered later to avoid the wheat growing too fast and the plants lodging vigorously. If wheat is planted late and the quality of cultivated land is poor, water it in time.

Water should be made according to the weather. If the weather forecast says it will be sunny in a week or so, you can water it at an average daily temperature of 3℃, which is beneficial to the emergence and strengthening of wheat seedlings. Five. If it is an ordinary wheat field, it is necessary to postpone watering or not watering, and then postpone watering until jointing stage. For wheat fields with small population and poor growth, urea can be applied about 10 kg when watering green water, which can promote the growth of wheat seedlings and increase yield. Water should be made according to the weather. If the weather forecast says it will be sunny in a week or so, you can water it at an average daily temperature of 3℃, which is beneficial to the emergence and strengthening of wheat seedlings.

Wheat fields that grow normally at seedling stage can be postponed until after jointing stage. Fertilization at the turning green stage is beneficial to the growth of weak seedlings and the increase of panicle number. Due to the lack of soil capacity, it is necessary to fertilize weak seedlings in time.

In addition, the amount of phosphate fertilizer, potash fertilizer and other fertilizers should be appropriately increased in the wheat field to control the humidity in the field. For a seedling with many seedlings, fertilization is not needed. The water and fertilizer needed for greening should be based on the growth of wheat and the field water capacity. Fertilization will be carried out in most areas from the end of February to the beginning of March. For wheat seedlings with relatively weak growth and small leaves per plant, they should be watered and fertilized in time during the greening period.