Can Corn Be Grown Without Topdressing? Read This and You'll Understand
Farmers in some regions need to topdress their corn, but in some other regions, corn does not need topdressing. So can corn be grown without topdressing?
1. Can corn be grown without topdressing?
Corn can be grown without topdressing, but topdressing corn can give it a higher yield. However, in some places where the soil is poor, appropriate topdressing is still needed to ensure the fertilizer corn needs for growth. Whether to topdress should be decided according to the local actual conditions and the growth of the corn.
2. When should corn be topdressed?
During the whole growth period of corn, the best time for topdressing is at the big flare stage, because the nutrients needed at this time are relatively large, and it is also a key period in the growth process. How do you judge the big flare stage? Generally, it is when 11-12 leaves of the corn have unfolded. At this time, the leaves unfold and look like a big flare, so it is called the big flare stage.
3. What fertilizer should be used for corn?
For corn topdressing, most people will choose urea, and this is correct, but it is recommended to add some phosphate fertilizer and potash fertilizer together. Although corn is a nitrogen-loving crop, phosphate fertilizer and potash fertilizer should not be ignored either. Later, some foliar spraying will also be needed to supplement other trace elements. For corn topdressing, you can choose high nitrogen, low phosphorus, medium potassium, or high nitrogen, low phosphorus, low potassium.
3. How should corn be topdressed?
The most correct method is to dig a hole and apply the fertilizer deeply, then cover it with soil, so that the fertilizer utilization rate is improved (suitable for small plots). In addition, topdressing in the furrows is also a good method. If you have a lot of land, you can choose this. What is not recommended is the broadcasting application that everyone often uses. Although fertilizing is fast, the waste is also serious, and the absorption rate is greatly reduced.
If the land is dry, water it promptly after topdressing, and appropriate topdressing can also be done after rain. I hope everyone's corn can achieve a high yield.