Technical points of wheat management

Wheat is prone to late spring cold and late frost injury in spring, so it is necessary to water the wheat in time before the bad weather of heavy rain and strong wind in March, so as to increase the ground temperature rapidly and reduce the probability of freezing injury. Wheat has entered the stage of turning green and jointing, and appropriate amount of nitrogen fertilizer can be applied. Herbicides can be used to control weeds during the green period, and appropriate amounts of paclobutrazol can be sprayed to prevent lodging in wheat.

First, cold in late spring and prevention of frost damage

The main results are as follows: 1. Wheat is prone to late spring cold and late frost injury in spring. After jointing stage, the frost resistance of wheat will be relatively poor, so it will affect the yield of wheat.

2. In order to avoid this situation, when the wheat enters March, before the bad weather, such as heavy rain and windy weather, it is necessary to water the wheat in time, which is conducive to the rapid increase of ground temperature. and the probability of late frost damage will be reduced.

II. Fertilization management

The main results are as follows: 1. When wheat enters the green and jointing stage, sufficient fertilizer should be applied. At this stage, nitrogen fertilizer is mainly applied, which is beneficial to improve the quality and yield of wheat. If insufficient nitrogen fertilizer is applied, it will lead to sparse seedling growth and few tillers of wheat. Therefore, the yield of wheat will not be very high.

2. When applying too much nitrogen fertilizer, it is easy to cause excess nutrition, and wheat will have the phenomenon of too large leaves and too many tillers, and it will lead to thin stem growth, so it is easy to lodge, and the yield will also be reduced. generally, the time and amount of nitrogen fertilizer applied to wheat should be determined according to the growth of wheat.

3. Weeding

1. If you do not give wheat a herbicide in time before the Spring Festival, you can use the corresponding herbicide to the wheat when the weather is sunny. If you choose to return to the green stage, and enter the jointing stage, it is no longer suitable to hit the herbicide.

2. If the time of hitting herbicides is delayed, then the probability of drug damage will be greater, and it will also lead to a decline in wheat yield. Herbicides should be used in strict accordance with the prescribed dosage in the instructions, and self-protective measures should be taken when administering herbicides.

Fourth, anti-lodging

1. If lodging occurs in wheat, it will lead to a decline in quality and yield, and lodging in wheat is generally due to the excessive amount of sowing when sowing wheat, resulting in a very dense after tillering, and the growth of wheat stalks is thin and brittle, while in the later stage of wheat growth, if you encounter bad weather, such as rain and wind, it will also lead to wheat lodging.

2. In order to prevent lodging of wheat, chemical control methods can be used to prevent wheat lodging. Generally, appropriate amount of paclobutrazol can be sprayed, and corresponding agents should be selected for control according to different conditions.