The cold wave is coming! How to prevent and treat the symptoms of wheat yellowing

At 18:00 yesterday, the Central Meteorological Observatory released the first cold wave blue warning for this winter: It is expected that the temperature in the central and eastern parts of China will change from high to low in the early period from December 5 to 9, and there will be continuous low temperature, and the temperature will reach in most areas. The lowest value since the winter. Among them, the coldest period occurs from 9th to 10th, when the lowest temperature 0°C line may be southward to the middle and lower reaches of the Yangtze River.

In the process of this cold air, there are sand or dusty weather in Xinjiang's Nanjiang Basin, western Inner Mongolia, Hexi in Gansu, the central and western Inner Mongolia, and parts of northern Ningxia. Huanghuai, Jianghan and other places have small to moderate rain or rain and snow, and there are small to moderate rains in Jianghuai, Jiangnan, the southwestern part of China and southern China.

At 6 o'clock today, the Central Meteorological Observatory continued to issue a cold wave blue warning. The meteorological department reminded to prevent the adverse effects of wind and wind cooling on facility agriculture, animal husbandry, tropical economic crops, and aquaculture.

Wheat growers look here

Recently, some netizens have asked questions about the yellowness of their own wheat. What is the reason?

Expert answer

Wheat is now yellow. In addition to temperature changes, extensive soil preparation, sowing quality and other factors affecting nutrient absorption and utilization, lack of base fertilizer, red spider damage, and herbicide effects can cause yellow and dry leaves.

The temperature of the wheat changed before winter. Some plots will have large dry tips and yellow leaves due to fertility or soil texture and base fertilizer. As long as it is not a red spider or a herbicide, there will be no major problems, and it will be fine to strengthen management after the spring.

If there is red spider, it is recommended to prevent it, so as not to affect the wintering of wheat.

If there is phytotoxicity, it is recommended to spray the bryophyte + foliar fertilizer + urea once to ensure the safe wintering of wheat.

Photo source: China Weather Network, New Rural Big Horn (ID: xncdlb)

This article URL: The cold wave is coming! How to prevent and treat the symptoms of wheat yellowing

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