Why does corn have roots but no sprouts? How to prevent it

During the process of corn sprouting after sowing, many people encounter the phenomenon of roots without sprouts or sprouts without roots. This phenomenon brings great trouble to farmers, and many people often do not know what to do. So what causes corn to have roots but no sprouts? And how should it be prevented? Let's take a look at the detailed introduction together.

I. Causes

1. Sowing quality: When planted in relatively heavy clay soil, sowing too deep and poor soil permeability will affect seed germination.

2. Seed coating phytotoxicity: When many farmers carry out coating, using too much pesticide and uneven coating will damage the seed embryo and affect normal germination.

3. Fertilizer burning seedlings: When applying base fertilizer or seed fertilizer, if isolation measures are not taken well, the seeds and concentrated fertilizer will come into direct contact, which can easily cause sprout burn or root burn.

4. Temperature too low: After sowing, the temperature is relatively low, but the soil moisture is relatively high and aeration is poor, which affects the differentiation of the seed sprout.

5. Underground pests: After sowing, underground pests gnaw on the sprouts or roots, causing the seeds to be unable to grow normally.

6. Herbicide phytotoxicity: When weeding before and after sowing, improper use of chemicals causes the liquid to seep down and affects seed germination and rooting.

7. Freeze damage: If the seeds are not dried in time after harvest, low-temperature freeze damage will directly freeze and injure the radicle and plumule, causing them to fail to develop normally.

8. Mechanical damage: During seed production, the plumule or radicle is damaged by equipment, causing it to fail to germinate normally.

II. Prevention methods

1. Before sowing, carry out measures such as seed selection and sunning the seeds to ensure seed vigor. When coating, control the amount of chemicals applied well to ensure even coating.

2. When sowing, control the sowing depth according to soil moisture. When moisture is high, sow appropriately shallowly, and at the same time sow appropriately late. If heavy rain occurs after sowing, drain water in time. When fertilizing, pay attention to the method, and it is not advisable to let seeds and fertilizer come into direct contact.

3. The use of herbicides must be carried out strictly according to standards. In low-temperature weather, preventive measures should be taken well to reduce the degree of freeze damage to seeds.

The above is an introduction to the causes of and prevention methods for corn having roots but no sprouts. I hope it can help you. If you want to learn more related knowledge, please stay tuned to us.