The corn flower and grain period is the cessation of nutrient growth, shifted to the reproductive growth centered period, is the flowering and pollination, the formation of seeds, grout maturity, is the period of yield formation. This period should strive to extend the time of grouting, realize the grain more, get high yield key period.

The main management measures for corn in the kernel period are to feed the roots and protect the leaves, prolong the life of the leaves, and prevent greening and late maturity or early failure. If the soil fertilization, you have to grasp the word "early".

One, attack the grain fertilizer application

Corn in the flowering of the grain period of fertilizer, should be in the female spike spitting before and after the application of fast-acting nitrogen fertilizer, the amount to be less, and pay attention to the combination of fertilizer and water.

But in the actual cultivation process, we almost will not go after the attack grain fertilizer, at most will go to the foliar spray some urea solution just. Such as 1%-2% urea solution, 3%-5% calcium superphosphate leaching solution.

Corn flowering grain period can not be off the fertilizer, if you find that the flowering period leaves have yellow phenomenon should be timely application of nitrogen fertilizer.

In fact, we seldom go to the corn to chase the flower grain fertilizer, a one-time fertilizer has been very common, can give the corn fertilizer has been very little, there are chased are also chased in the tassel period.

Two, heavy spike fertilizer

The corn trumpet period is particularly important in its life, can be seen as a watershed in the management of maize, such as fertilizer, soil, spraying and other management measures, most of which are carried out before and after the trumpet period.

As we all know, corn is a crop that needs more nitrogen fertilizer, fertilizer time is generally good to the big trumpet period, the specific amount of fertilizer to be determined by the seedling potential, soil strength. The specific use of tapping fertilizer should be based on the fertility of the soil, group size, plant growth and seedling fertilization to determine.

The poor soil or soil lack of fertilizer, tapping tassel fertilizer must be appropriate early application, and increase the amount of fertilizer. Sets of corn and flooded corn spike fertilizer should also be early. High-density large groups of plots should increase the amount of fertilizer.

In short, if you want to chase the corn flower grain nitrogen fertilizer, the best method of application is leaf spray, if the soil application that has to take advantage of the early, the amount should not be too much, otherwise it will result in greed and late maturity.