The latest wheat winter irrigation benefits and matters needing attention

As the temperature gradually drops, wheat gradually enters dormancy period, which is also winter irrigation period of wheat. Winter irrigation of wheat is one of the effective practical experiences for increasing yield. But is all wheat suitable for winter irrigation, so which wheat should be winter irrigation? What should I pay attention to in winter irrigation? Let's take a look.

1. Which wheat needs winter irrigation

Winter irrigation of wheat needs to be decided according to moisture content and seedling stage. Winter irrigation is needed for wheat fields with water holding capacity less than 80% before winter and watering conditions. In addition, wheat fields with more than 2 tillers per plant are more suitable for winter irrigation. Weak seedling wheat fields, especially late sowing single-root single seedling wheat fields, are best not to winter irrigation, otherwise they are prone to freezing injury. Overgrown wheat fields can be postponed or not irrigated in winter to control prosperity and promote growth. For wheat fields with poor soil permeability, redness and yellowing are easy to occur after winter irrigation, and even suffocation may occur. For this kind of wheat field, winter irrigation is not considered.

2. Benefits of winter irrigation

Winter irrigation can prevent cold damage to wheat seedlings, but also for wheat next year to restore water points, so that winter water spring use, spring drought early prevention role. At the same time, after winter irrigation, it can also reduce the number of pathogen eggs, reduce the number of pests and diseases in the coming year, and obviously reduce the damage of pests and diseases in spring. It is one of the important measures to ensure the safety of wheat. In addition, winter irrigation in saline-alkali land can reduce alkali and improve soil. According to investigation, compared with wheat fields without winter irrigation, wheat seedlings will increase by about 123,000 ears, increasing yield by more than 27%.

3. Precautions

Winter irrigation of wheat needs to pay attention to timely and appropriate amount. Generally, winter irrigation starts when the daily average temperature drops to 8°C and ends at about 5°C. If winter irrigation is too early, the temperature will be higher and the evaporation will be large, and the due effect will not be obtained. If winter irrigation is too late, the soil will freeze and the water will not seep down, resulting in freezing of water on the ground, and the wheat seedlings will easily suffocate and die. Winter irrigation water for wheat should not be too large, to irrigate thoroughly, the same day infiltration is appropriate, generally watering 30-40 tons per mu, in order to save water, we must do canal ridge matching, prevent flood irrigation, in time after winter irrigation hoe loose soil, bridge cracks, in order to preserve moisture and temperature.

The above is the introduction of wheat winter irrigation benefits and precautions, I hope to help you, want to know more related knowledge, please pay attention to us.