One, the mark of wheat ripening
At the late waxing stage, the accumulation of dry matter in wheat grains reached a peak, the quality was good, the yield was the highest, and the physiology was fully mature. It was the best season for artificial harvesting. Check whether the wax ripening period is reached, as long as the wheat is taken out with a finger, if it shows a waxy appearance, this indicates that the wax ripening period is generally 2 to 3 days ahead of the ripening period (grain is completely hardened). The wax ripening period is the highest yield.
When the maturation period is over, the wheat stems are completely dry, the grain size is reduced, the water content is reduced, and it is hard and dry. It is not easy to crush with the nails. This is the best period for mechanical harvesting, and it is easy to thresh and hard to break. After the ripening period, the wheat grain nutrients will fall into the straw, causing the grain weight to drop, and the yield reduction per mu will reach 30-50 kilograms. In case of continuous rain and rain, the grains will have buds and molds, and the quality will be worse and the loss will be even greater. Therefore, it is crucial to grasp the timing of harvest and timely recovery.
Second, how to correctly determine the wax phase of wheat
1. Observe the grain. Grains are generally different shades of orange, with a knife cut to see the cross-section was slightly waxy hard, only slightly soft abdominal groin, abdominal short-skin has disappeared, the back of the grain can still squeeze a slight nail print.
2. Observe the tips, leaves and sheaths of wheat. The order of the tip, leaf and sheath of the wheat plant turns yellow, and the stem turns yellow from bottom to top. Only the top leaf and its vicinity are still green, the stem below the ear turns yellow, and the flag leaf sheath and the penultimate section turn yellow and dry. The strain was yellow, green and yellow.
3. Keep away from the wheat field. If the wheat plant is yellow all above and below, and a green belt is in the middle, it can be concluded that the wheat field has entered the wax ripening period, at which time harvesting is most suitable.
Third, wheat harvest requirements
1. Harvest in time. Harvested clean, no ear, no grain loss, small loss of grain.
2. Low and neat cutting can reduce grain loss and facilitate the sowing and growth of the next crop.
3. Threshing is clean.
IV. The Best Harvest Time of Wheat in a Day
The best harvest time for a typical day is 9 to 11 points and 16 to 18 points. Because the dew on the straw before 9 o'clock had not completely evaporated, the weather was too hot from 11 to 16 o'clock and the straw was dry. After 18 o'clock, the dew began slowly. In these two periods of time, the wheat is not humid, it is easy to thresh, and it is not dry. If the wheat straw is too dry, the wheat grains will automatically collapse and it is not easy to make the grain go to the warehouse.
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