Seed drying technique of Maize before sowing

Corn after dormancy, in the face of spring ploughing, sometimes corn has not finished dormancy, such corn seeds after sowing are often very low germination rate, uneven emergence, so often need to take measures. And drying the seed is the best choice, so how to dry the corn? What should I pay attention to? Let's get to know it with the editor.

1. Benefits of drying seeds

The high water content and cold climate of maize seeds are the main reasons for the freezing injury and low germination rate of maize seeds in the north. Drying seeds before sowing can promote the activity of enzymes in the seeds, and because of ultraviolet rays in the sun, it can effectively kill the pathogens on the seed surface and prevent the occurrence of diseases such as head smut caused by seeds. Drying seeds can enhance the activity of enzymes, improve the germination rate and germination rate of seeds, and promote the emergence of seeds quickly and evenly. In addition, seed drying can also reduce the water content of seeds and enhance their water absorption capacity. After sowing, it can quickly absorb water in the soil and improve the speed of germination.

2. Seed drying method

Before drying the seeds, we should first remove the thin seeds and impurities, and select the full and brightly colored seeds to keep the seeds, so as to ensure the good quality of the seeds. Drying seeds is generally carried out 10-15 days before sowing, it is recommended to choose a sunny day from 9: 00 a.m. to 4: 00 p.m., the seeds are spread evenly on the sun field, with a thickness of 5-10 centimeters, and should be turned frequently during the day to ensure uniform heating. cover it in the pile at night, so that it has enough accumulated heat to break the dormancy of the seeds, generally drying for 2-3 days.

3. Points for attention

When drying seeds, pay attention to the drying ground must be dry, ventilated to the sun, and equipped with rain-proof facilities, so as to avoid sudden heavy rain when drying seeds, which may cause seeds to germinate directly or rot seeds. Although it is said to choose a sunny climate when drying seeds, the temperature had better not exceed 30 degrees, and the seeds should not be dried directly on the cement field, because the high temperature on the cement field is easy to scald the seeds, resulting in deformed seedlings, and serious seeds will die without emergence.

The above is the introduction of corn drying technology before sowing. I hope it can help you. If you want to know more about it, please pay attention to us.