Why is wheat nine mature and ten percent harvested and matured?

Why is wheat nine mature and ten percent harvested and matured? In the rural areas, experienced farmers know this sentence: "Nine mature, ten percent, ten mature, one percent lost." This is the best time to harvest wheat when the wheat is ripe, not when the wheat is ripe, that is, the wheat ripening period is the best time to harvest. What are the characteristics of wheat ripening?

1, grain

The grains are generally orange in different shades. After cutting with a knife, the cross-section is waxy and slightly hard. Only the ventral groove is slightly soft. The fasting near the ventral sulcus has disappeared, and the back of the grain can still be squeezed with a slight nail print.

2. Wheat leaf tips, leaves, leaf sheaths

The tip, leaf and leaf sheath of the wheat plant turn yellow, and the stem turns yellow from bottom to top. Only the upper leaf and its vicinity are still green, the stem under the ear turns yellow, the flag leaf sheath and the penultimate section turn yellow and not dry. The strain is yellow, green and yellow.

3, wheat field

Looking at the wheat field from a distance, if the wheat plant is yellow and yellow, and there is a green belt in the middle, it can be concluded that the wheat field has entered the wax ripening stage, and the harvest is most suitable.

Why is wheat harvested in the middle and late seasons?

In the early stage of wheat waxing, the grain began to harden, and the grain also began to harden from the milky shape. If the grain was taken out with a finger, it would appear waxy.

In the middle of wheat ripening, the whole plant turns yellow, but the stalks of wheat are also elastic. This is the best time for artificial harvesting.

At the end of wheat bran, the dry matter accumulation in wheat grains reached a peak, the quality was good, the yield was the highest, and the physiology was fully mature. It is generally 2-3 days ahead of the ripening period (the grain is completely hardened), this time is the best time for machine harvesting.

Why not wait until the wheat is ripe for harvest?

Most of today's wheat is harvested by machine, and some farmers will wait until the wheat is ripe.

When the wheat grows to the maturity stage, the wheat stalks are all dried up, the grain volume is reduced, the water content is reduced, and the shape is dry and hard. It is not easy to be broken by nail pressing. At this time, it is easy to thresh with mechanical harvesting and is not easy to be broken.

However, the stems, stalks, leaves and roots of wheat in the ripening period can no longer re-manufacture and accumulate nutrients, but still need to consume nutrients for breathing, and the wheat kernel nutrients will fall into the straw, causing the grain weight to drop, and the yield per acre will be reduced to 30. Kilograms to 50 kg.

In addition, if the weather is rainy and rainy at this time, the wheat is prone to germination and mildew, the quality is worse, and the loss is greater. Therefore, it is very important to grasp the timing of harvesting, and it is very important to grab the harvest at the right time. Don't wait until the facets mature until they are granulated and harvest again. At that time, it is not a matter of reducing 100 pounds.

The best time for wheat harvesting during the day

9:00-11:00; 16:00-18:00

Now basically it is a combine harvester operation, choose the above two time periods.

The dew on the straw has not completely evaporated before 9:00;

11:00-16:00, the weather is too hot and the straw is dry;

After 18:00, slowly began to have dew.

During these two periods, the wheat is not damp and easy to thresh; and it is not dry. If the straw is too dry, the grain is easy to collapse automatically, and it is not easy to return the grain.

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