When is the best time and temperature for planting wheat?

It is better to plant wheat on June 5438+0016℃-10℃-15℃.

In most wheat-growing areas in Henan, people often say that the white dew is early, the first frost is late, and it is the right time to plant wheat with cold dew. This proverb has traditionally pointed out the best time to plant wheat. Judging from the climatic conditions and the growth characteristics of wheat, it is the most suitable time to plant wheat from 10 June 8 to 10 June 23, that is, from the National Day to the first first frost solar term.

During this period, the temperature and ground temperature decreased, which was beneficial to the growth and maturity of wheat. Sowing wheat in this period of time will make the root system of wheat stronger, and the ability of cold resistance and frost resistance will be stronger. However, some farmers often sow immediately after the autumn harvest, which is equivalent to sowing wheat in advance, which is not desirable.

Sowing time

Although sowing by grabbing soil moisture can improve the emergence rate of wheat, the temperature of wheat seedling stage is higher and the growth rate is faster because of sowing in advance. It is easy to grow too long before winter, with weak cold resistance and vulnerable to freezing injury. In addition, the phenomenon of late spring cold has become more and more common in recent years, and the possibility of freezing injury to wheat is also greater.

Therefore, it is suggested that farmers who are used to sowing early should postpone sowing time appropriately, so that the cold resistance of wheat planted will be stronger. In the later stage, the stems are thicker, the lodging resistance is stronger, the ears are fuller, and the yield is obviously higher than that of early sowing wheat. The change of temperature has a great influence on the growth of wheat. After the cold dew, the temperature gradually drops, and the temperature of the first frost solar term at the end of 10 is even lower. When sowing wheat, the suitability of ground temperature and air temperature is very important for the growth and development of wheat.