What causes herbicide damage in wheat? How can it be remedied?

Weeding is carried out after rain once wheat has emerged, but a slight mistake can lead to herbicide damage, seriously affecting wheat growth, development and yield. So what causes herbicide damage in wheat? How should it be remedied when it occurs? Let's take a look.

1. Causes of herbicide damage

1. Improper use of chemicals

Applying inappropriate chemicals during wheat growth is one of the key factors causing herbicide damage in wheat. Farmers spray herbicides and other agents on wheat mainly to give it a good growing environment, but once too much is applied, the wheat seedlings suffer herbicide damage. Inaccurate mixing ratios and failure to follow the prescribed dosage when applying chemicals, a whole series of mistakes like these, will all lead to herbicide damage in wheat, thus affecting its growth and development.

2. Environmental factors

The occurrence of herbicide damage in wheat is also profoundly influenced by environmental factors. It is closely related to temperature, humidity and soil. Variable temperature is a major factor in the occurrence of herbicide damage; both low and high temperatures can cause it. Wheat growth requires suitable humidity. Once the growing environment is too dry, the applied chemicals struggle to take effect, while increasing the number of applications causes frequent herbicide damage. If humidity is too low, the chemicals spread continuously with the moisture, increasing the extent of the damage.

3. Improper application of chemicals

In the process of spraying chemicals, uneven spraying means some wheat receives an excessive dose while some receives too little, which is detrimental to its growth and development. Poor timing of application can also cause herbicide damage. When applying chemicals, try to avoid the booting stage. Pay attention to the cleanliness of the spraying equipment when applying chemicals, and clean it promptly after application. If it is not cleaned and other chemicals are sprayed again, herbicide damage can also occur.

4. Chemical residues from the previous crop

Excessive use of chemicals on the previous crop will cause chemical residues when the following crop is sown. Combined with environmental factors such as low air humidity and poor soil fertility, this may all cause herbicide damage. Once affected by herbicide damage, the wheat germination rate is extremely low, and emergence is also hindered, so the healthy growth of the wheat is seriously affected.

2. Remedial measures

When herbicide damage occurs in wheat, spray the wheat with clean water immediately upon discovery. For the affected parts, carry out 4-6 rounds of clean water spraying to wash the chemicals off the leaf surface and reduce chemical residues. Irrigate the affected area thoroughly; when there is plenty of water in the soil, the wheat roots absorb a large amount of water, which increases the water content of the cells, dilutes the chemicals and reduces the occurrence of herbicide damage. When herbicide damage occurs, growth is deformed and leaves turn yellow, and the healthy growth of the wheat is affected. At this point, additional phosphorus and potassium fertilizer can be applied so that the wheat obtains the elements it needs, improving the soil condition and helping the wheat recover. If the wheat suffers severe herbicide damage, for example dead seedlings or failure to joint and head, then remove the affected wheat promptly and replant in time, or plant other crops in time, to reduce losses.

The above is an introduction to the causes of herbicide damage in wheat and remedial measures. We hope it helps you. For more related knowledge, please stay tuned to us.