Why should wheat be watered? What are the benefits of watering wheat?

According to the planting situation of wheat in recent years, there is really no difference between how much water to water and when to water it. Different places and different farmers have different practices, but in the end, the yield per mu is really comparable.

Wheat growth is mainly divided into several stages.

In such a long growing period of wheat, the water demand is very large. However, many people are at a loss about how to control the amount and frequency of watering wheat, and don't know when it is appropriate to water it. Some farmers think it is enough to keep the wheat fields dry. Watering wheat too often not only wastes water resources, but also increases the planting cost.

Wheat growth is mainly divided into several stages: seedling stage before winter, wheat turning green, wheat jointing stage, flowering and booting stage, wheat filling stage, wheat milk maturity stage, wax maturity stage and complete maturity stage. The demand for water in different stages of wheat growth period is different.

Irrigation wheat according to local conditions

The first greening water depends on the soil quality. If it is sandy loam or alkaline soil, it is not advisable to water the green water too early. If the frozen soil in the field does not completely melt prematurely, wheat will easily die when watered. Generally, the water used for greening is that there is no ice in the ground.

At this time, it is best to apply enough topdressing, and it is best to use nitrogen fertilizer, because compound fertilizer or diammonium is used when sowing, and the loss of phosphorus and potassium fertilizer is less in winter, and a large amount of nitrogen fertilizer is needed at the jointing stage of wheat turning green. If the green water is not topdressing for the first time, it may delay the growth of wheat. Finally, it caused a reduction in production.

Wheat watering method

Water the wheat fields. For wheat fields with good sowing foundation and watered by overwintering water, they can be managed in the order of first managing three types of wheat fields, then managing two types of wheat fields, and finally managing one type of wheat fields.

The total number of stems per mu in the three types of wheat fields is less than 450 thousand, and most of them belong to late sowing and weak seedlings. Fertilizer and water management in spring should be mainly promoted. Top dressing in spring should be carried out twice. During the greening period, topdressing and watering will be started when the ground temperature is stable at 5 degrees Celsius and 5 centimeters. Lunan applied 5.17kg urea and an appropriate amount of diammonium phosphate per mu from late February to early March in northern Shandong, central Shandong and eastern Shandong to promote tillering in spring, consolidate tillering before winter and increase the number of ears per mu. Fertilize twice in the middle of jointing stage to increase the number of grains per ear.

The total number of stems per mu in secondary wheat fields is 450,000-600,000. The focus of fertilizer and water management in spring is to consolidate tillering before winter, appropriately promote the occurrence of tillering in spring and improve the tillering rate. The soil fertility level is average, with 450,000-500,000 stems per mu. Topdressing and watering in the early stage of wheat growth should be combined with topdressing urea l0-l5 kg per mu. The second-class wheat fields with high soil fertility and yield of 500,000-600,000 stems per mu should be topdressing and watered in the middle of wheat growth.