High-yield corn growers all apply topdressing at this time, no wonder the yield is so high
When is the best time to apply topdressing to corn? What fertilizer is best? Can urea be used? Can it be applied in a furrow between two rows with a row spacing of 55 cm? Today we have specially invited a senior agronomist to share his experience with us. Let's take a look below.
Traditional corn planting generally uses a small seeder, and the fertilizer is applied relatively shallowly. To prevent burning the seedlings, the amount of base fertilizer used is generally relatively small, so topdressing is always necessary.
Corn
Timing of topdressing: According to the requirements of high-yield cultivation, corn should be topdressed during the small trumpet stage, that is, the period from 10 leaves to 11 leaves. Once it enters the small trumpet stage, urea should be applied as topdressing. At this time, about 20 jin of urea is enough.
The period of greatest effect is the large trumpet stage. The large trumpet stage is generally when tasseling is about to begin and the total number of leaves is 13 or 14. At this time it enters the large trumpet stage, which is also the period of greatest effect. At this time, about 30 jin of urea should be applied. Combined with rainfall - if there is no rainfall at this time, then irrigation and topdressing are needed. This is very critical.
Corn
Judging the large trumpet stage: If you have experience, go to the field and pinch with your hand. After pinching to the top, if you can feel the tassel reaching this point at the mouth, then this is the large trumpet stage. This is a critical period when topdressing must be applied.
When applying topdressing, do not rigidly stick to this time. You must base it on your own seedling conditions. When dividing the stages, clearly distinguish whether it is the small trumpet stage or the large trumpet stage, and only then apply topdressing.
Corn
In addition, corn planting should generally use furrow application between rows. Open a shallow furrow between two rows, then apply the fertilizer inside, cover with soil, and then water. This is the best method.
The above is all the content for today's corn topdressing management. If there is anything unclear about today's sharing, or if you encounter other problems during corn planting, you can ask in the comment section below.
[This article was published by the "nice account", June 20, 2017]