Recently, the temperature in most parts of our province is relatively low. Provincial experts from the Academy of Agricultural Sciences Qiu Zhengming and Gao Baochun reminded farmers that although the impact of the current temperature on the crops is not great, it is necessary to prevent cold springs in advance so as to avoid freezing crop damage.

Cold Recommendations

wheat

When the spring weather meets a cold spell, such as wheat seedlings have suffered freezing injury, timely remedial measures should be taken to catch up on available nitrogen fertilizers. According to the degree of freezing, generally 5 to 7.5 kg of urea per acre is applied, and cultivating soil at the same time to promote rooting and tillering. , strive for high delivery and Cheng Sui.

rape

Increase the application of phosphorus and potassium fertilizers: Phosphorus can promote the development of rapeseed roots and enhance rapeseed resistance; Potassium can improve rapeseed cold, disease resistance, lodging resistance.

Coverage protection: crop stalks (such as rice straw and wheat straw) can be laid on the rows of rapeseeds to weaken the invasion of the cold wind to the roots. A layer of hull or ash can be applied to the leaves to prevent freezing damage to the leaves. Soil can be excavated to cover the roots of plants.

The cultivating soil: can loosen the soil, increase the temperature, and protect the root of rape. Note that when cultivating the roots, do not injure the root system, otherwise it will cause dead roots.

Vegetables (sheds)

Nursery class: keep the bed dry, pay attention to weather changes. Stop watering before the onset of the cold wave to avoid freezing damage and disease during cold periods. When the temperature is lower than 2°C, a double-covered shed must be implemented in the evening. If there is sunshine during the day, the small arch shed inside the large arch shed should be opened to allow the vegetable seedlings to see the light and increase their resistance. The melons and fruit seedbeds should be paved with hotlines, and when sunny, they can be sprayed with protective agents such as carbendazim to prevent diseases.

Transplanting: Pay attention to insulation. When the temperature is lower than 2°C, cover a small shed. If the temperature is low for 3 to 5 days, it should be covered with straw. Transplanting should be carried out on a sunny day with high temperatures, that is, rushing to transplant in the “cold tail warm head”. At the same time, we must strengthen the ventilation of greenhouses to prevent the occurrence of airborne diseases.

Open ground vegetables

Timely harvesting, clearing ditch before the arrival of the cold wave.

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