Corn only grows roots and does not germinate. What happened? Is there any remedy?
1, sowing is too deep, and the normal sowing depth of corn is generally 3-5cm. If sowing is too deep, such as 7-8cm or 10cm, there may be roots without buds. Because of the poor ventilation of the soil, germination and ground breaking need a lot of nutrients. Once sown too deeply, corn will grow and break through the nutrients needed by the soil.
2. The humidity is very high. If it is cloudy in the local area, there will be water on the ground after corn sowing and the soil humidity is too high, there will also be roots without buds. Because the soil moisture is high, there will also be poor ventilation. Corn grows in this situation, which is similar to the above situation. Everyone understands.
In recent years, many friends like to sow corn with base fertilizer. In general, the distance between seeds and fertilizers should be more than 7cm (or even farther). Once they are too close, it will cause fertilizer damage, burn seeds and cause the phenomenon of roots without buds.
4. When the dosage of seed coating agent is too large, when corn germinates and breaks the film, it consumes too much nutrients, and the result is that it can't break through the ground. Although this happens less, it will still happen.
5, seed problems, purchased seeds with poor germination rate, or seeds with damaged embryos.
remedial measure
1. When coating corn twice before sowing, be sure to pay attention to the dosage. Don't use too much. The dosage of different seed coating agents is different. Please be clear when buying.
2. The sowing depth of corn should be 3-5cm, neither too deep nor too shallow, and the sowing should be uniform.
3. The interval between corn and chemical fertilizer should be more than 7cm, and chemical fertilizer should not be next to corn seeds.
4. Before and after sowing, if you encounter rainy weather, remember to drain water in time, and there should be no water in the ground, especially if it rains not long after sowing. ?