Winter wheat field
2018-12-17 01:06:59
Wheat field timely irrigation, one can stabilize the ground temperature, to prevent the freezing of dead seedlings; the second can bury the soil, eliminate overwintering pests; third is the combination of winter water and winter fertilizer, can create good conditions for the spring wheat turn green and root growth. In addition, the saline-alkali wheat fields can be fed in winter and alkali can be changed to soil. Compared with the unwintered wheat fields, the number of ears per acre in the winter-irrigated wheat fields increased by 123,000 spikes, the number of grains per spike increased by 6.7 grains, the grain weight increased by 1.3 grams, and the yield increased by 27%. Whether or not wheat fields need winter irrigation, one depends on the lyrics, where wheat fields with water below 80% in field conditions before the winter should be irrigated in winter; Second, we must look at the situation of the seedlings, and the number of wheat fields per plant is more than 1.5-2. Winter irrigation is more appropriate, and it is better not to apply winter irrigation for weak plots, especially for single-seedlings that are sown late, otherwise it is prone to frost damage. The appropriate time for winter wheat irrigation in wheat is generally from the daily average temperature dropped to 7-8 °C when the beginning of the end to about 5 °C, "freezing in the night, winter irrigation is just right." The order of winter irrigation is generally the first to infiltrate poor clay ground, low-lying land, and later infiltration of water-rich sand land; first to fill the bottom of the second or third type of wheat field where the bottom is insufficient or the surface of the table is poor, after the irrigation is better, sowing earlier And there is a long trend of wheat fields. Winter irrigation should not be too large, generally pouring 50-60 cubic meters of water per acre. In order to save water, it is necessary to support the drainage channels to prevent flooding. After wheat is irrigated in winter, it is necessary to mark the loose soil in time to heal the cracks so as to increase the temperature and prevent the dead seedlings caused by the wind blow.
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