The size of corn seedlings is different, which has a lot to do with the foliar fertilizer.

1. When is the foliar fertilizer sprayed?

Early stage: The best period is when corn seedlings grow 6 or 7 leaves.

Late period: The best period is one week before the ear of corn.

2. What kind of corn seedlings can be sprayed?

The effective period of foliar fertilizer is about 3 weeks, and the interval between the first and the second time is 10-15 days.

Try to take the medicine before 10 o'clock in the morning when the weather is not hot, and after 4 o'clock in the afternoon.

If the growth of corn is weak, you can fertilize it once. Fertilization requires growth-promoting urea, and fertilize 50 kilograms per acre.

After about 10 corn leaves are basically fully developed in the later period, you can also top-dressing by 50 kg.

Attention issues:

There are several periods in the growth process of corn that cannot be used as foliar fertilizers: flowering period and seedling period.

In addition, it is not advisable to fertilize in the afternoon when the temperature is exposed to the sun.