What are the advantages of wheat suppression and when is the best time to suppress wheat?

Wheat is usually sown in late August or early September after corn is harvested. However, if the temperature and soil moisture are good after sowing, the wheat will grow vigorously after germination, which is usually after the Chinese New Year. At this time, it is necessary to suppress the wheat. The purpose of suppression is to allow the wheat to accumulate energy in the winter months and to ensure the growth cycle after the beginning of spring, so that the grains will be full and there will be a good harvest in the harvest season.

Why is wheat suppressed?

The current practice of returning straw to the fields has changed the internal structure of the soil. The mixture of straw and soil has caused the soil to lose its granularity and become loose. Wheat seeds cannot effectively contact the soil and cannot germinate, resulting in low germination rates, uneven seedlings, and lack of seedlings, which seriously affects the progress of planting and yield. At the same time, loose soil makes wheat prone to lodging, and the soil's ability to retain fertilizer and water decreases.

What are the advantages of wheat suppression?

1. Compact the soil

Through compaction, soil clods can be crushed, soil gaps can be filled, and soil compactness can be improved. At the same time, the soil's ability to retain moisture, water, fertilizer, and heat is also improved, creating favorable conditions for wheat to safely overwinter and thrive.

2. Protect and promote the root system

Through compaction, the gaps in the soil are tightened, the roots of seeds and wheat seedlings are in close contact with the soil, water and fertilizer are fully absorbed, and the roots of wheat seedlings will grow deep and develop, laying a good foundation for the future growth of wheat.

3. Control the growth and suppress the growth

Suppression can damage the leaf tillers on the aboveground part, control the growth of the aboveground stems, promote the development of low-position tillers, reduce the tiller gap and the occurrence of excessive tillers, achieve the purpose of controlling excessive growth, and lay a good foundation for cultivating strong seedlings.

4. Improve resistance

After the suppression, the soil is compacted, the root system of wheat seedlings is well developed, the wheat seedlings are strong, and the wheat seedlings are more resistant to frost, cold, dry hot winds, and lodging. Especially before winter suppression can create favorable conditions for the safe wintering of wheat and prevent frost damage.

When is the best time to suppress wheat?

1. After wheat sowing

Press down promptly after sowing so that the seeds are closely combined with the soil, which is conducive to germination and emergence.

2. Tillering stage

If there are many wheat tillers, they need to be suppressed to control excessive growth and promote root growth and seedling growth.

3. Wintering period

In order to ensure the healthy development of the root system and ensure the water demand in winter, suppression can be carried out during the wintering period to cause the wheat leaves to crack, be injured and dry up, which will promote the wheat to enter dormancy quickly and relieve soil moisture pressure.

4. Greening period

After a long winter, the absorption of fertilizer and water and the invasion of cold air cause cracks and faults in the soil to appear again. They need to be suppressed in time to fill the cracks and compact the faults to ensure that the wheat returns to green and grows as soon as possible.