Management methods of Maize Seedling stage

Corn is one of the major crops planted in China. It is widely used in edible, oil and feed. Corn has strong adaptability to the environment, coupled with the powerful function of hybrid corn seeds, so we can see a bumper harvest of corn every year, so do you know what to do to make corn grow faster and better at the seedling stage of corn? The following is the management method of corn seedling that Qinnong Network wants to share with you today, hoping to help more partners who love corn planting.

1. Thinning and replenishing seedlings

The first step of corn field management is planting, which includes seedling inspection, seedling supplement, seedling thinning and seedling determination, among which the most important work is seedling thinning and seedling supplement. About one week after corn emergence, we should check the emergence of corn in the field. If there are any missing seedlings, we need to supplement the seedlings in time to ensure that the seedlings in the field are neat. Secondly, check whether there are very dense corn seedlings in the field. Remove some of the dense places and transplant them reasonably. According to the distance between rows of forty to fifty centimeters and the distance between plants of thirty to forty centimeters, transplant them.

2. Water management

After planting, watering is needed, because the transplanted corn seedlings do not really survive, so it needs to be provided with enough water to promote its root growth. Usually, there is no rainfall after planting, so watering is needed at least every four to six days until it grows new roots and completely adapts to the new environment. Finally, it is necessary to reduce water content after corn seedlings survive, because its waterlogging resistance is extremely poor during this period, and the soil needs to maintain a certain degree of dryness. If rainfall is encountered during this period, drainage should be carried out in time, otherwise corn seedlings will rot and die.

3. Intertillage and weeding

At least two intertilling and weeding are required during the growing period of corn. Usually, the first intertilling is carried out about seven to ten days after corn planting. First, it can enhance soil permeability, second, it can promote the development of corn seedling roots, and finally, it can reduce the absorption of nutrients by weeds. The second weeding is generally carried out when the corn seedlings grow to about 40 cm, mainly to promote the growth of the plants and speed up the growth of the plants.

4. Topdressing seedling fertilizer

We usually plant corn after emergence to the corn cob before this period of time is called seedling stage, and we say seedling fertilizer is mainly to promote the growth of corn seedlings, which can be divided into Qi seedling fertilizer and seedling fertilizer. Qi seedling fertilizer is usually carried out about ten days after corn planting, and seedling fertilizer is generally applied when corn seedlings grow to about forty or fifty centimeters, and it is best to combine cultivation and weeding each time. The components of seedling fertilizer mainly include urea, potassium fertilizer, phosphorus fertilizer, compound fertilizer, etc., mainly based on hole application, which can enhance the Russian utilization and absorption of nutrients.

5, pest control

In fact, some underground pests, such as white grubs and ground tigers, are the most harmful to corn seedlings, followed by some foliar insects, such as leaf rollers, thrips, etc., and finally seedling blight, root rot, etc., which pose a great threat to the growth of corn seedlings. For underground pests, we usually use phoxim to irrigate roots, while aboveground pests can be controlled with imidacloprid. We can use carbendazim to control seedling blight, while root rot requires mancozeb. Secondly, we must strengthen field water and fertilizer management.