When is the wheat harvest?

The winter wheat area is harvested from late June to early July, and the spring wheat area matures in mid-August. The best time for wheat harvest in a day is: 9: 00-1:00 and 16- 18: 00.

There are two reasons for choosing these two time periods: before 9 o'clock, the dew on the straw has not completely evaporated, and from 1 1 to 16 o'clock, the weather is too hot and the straw is dry, but after 18 o'clock, the dew gradually begins to appear.

In these two periods, wheat is not wet, easy to thresh and not too dry. If the straw is too dry, the wheat grains will easily collapse automatically, and it is not easy to return to the warehouse.

We should pay close attention to the changes of wheat seeds before harvest. When checking the seeds, we should select the representative ear of this field, and then take the middle grain of this ear for inspection, because the wheat of the same ear is not matured at the same time, but gradually matured from top to bottom.

Extended data:

A sign of wheat maturity

The harvest period of wheat is mainly determined by the maturity of wheat grains.

Wheat ripening is divided into milk ripening, wax ripening and complete ripening. The stems and leaves in the milk stage gradually changed from green to yellow-green, and the seeds had milky white inclusions. At the end of milk ripening, the grain volume and fresh weight reach the maximum, the grain color turns pale yellow, the furrow is green, the grain water content is 45%-50%, and the stem water content is 65%-75%.

The seed content in wax maturity is waxy, and the hardness changes from soft to hard with the maturity.

At maturity, the leaves are yellow, the seeds are hard, showing the true color of the variety, the water content is below 20%, and the water content of the stem is 20-30%. After the mature period, the nutrients of wheat grains will be poured back into the straw, which will lead to the decrease of grain weight and yield per mu by 30 kg to 50 kg. In case of continuous rainfall, the grain will germinate and become moldy, the quality will become worse and the loss will be greater.