Planting time and method of corn

The planting range of corn is very wide, and the planting time of each region will change with the local climate environment, but the total time is not much different. Of course, the method of planting is more or less the same. If it is said that it is so water, how to do it specifically, we should continue to analyze and understand it. Learn about the specific planting time and methods, what will be the difference.

1. Planting time

Most of them are sown in spring and summer, but some varieties can also be sown in summer. Spring is probably sown from April to May. Some areas are warm and can be sown in March, some cold areas can not be sown until the end of May, and protected cultivation in early spring can start sowing at the end of February. Summer corn is probably sown from June to July, and it can be sown after harvest last season. Beyond the cold, some areas cannot be sown in summer, while warm areas can sow seeds and harvest autumn corn.

2. Seedling stage

Corn is generally broadcast directly, and the seeds are sown in medicine to prevent the seeds from being eaten by worms. The seedlings should be unearthed to keep water. After the seedlings come out, they are easy to be bitten off by the tigers. Throw carbofuran particles next to the seeds before emergence to avoid insects. After the seedlings grow tall, the ground tiger larvae will gnaw on the leaves, or the corn borer will eat the harm. Grow to about 30 cm to top fertilizer once, urea, urea concentration is high, far root, cover soil. Pay attention to irrigation.

3. Growth period

Plant rapid growth, stem rapid jointing, need a lot of nutrition, need weeding, with topdressing, application of compound fertilizer, in order to prevent lodging, but also combined with soil cultivation, strong root system. Irrigation can be natural Rain Water can, drought, to timely watering, to avoid the loss of water of new leaves. The sun is too strong to burn the leaves. If the leaf growth is too dense, it is necessary to beat leaves to inhibit vegetative growth, to beat leaves, to hit cross leaves, dense leaves.

4. Fruiting stage

It is necessary to pollinate when flowering, but generally not artificial pollination, all natural pollination, mainly wind pollination, so when planting, we should pay attention to the varieties planted by others, what it is, so as not to string pollination and grow flowering corn. When booting can be topdressing, but also can not topdressing, generally apply ammonium bicarbonate. After the ear grows, it usually takes about 20 days to mature, and the time is very fast. Therefore, we should pay attention to timely harvest, the particles hardened, the upper leaves withered can be harvested.

Corn is the planting time in the central region is generally planted in spring, one harvest a year, topdressing 2 to 3 times, farm manure is not convenient to transport, chemical fertilizer tolerance is also very good. Planting should be adjusted according to the whole growth period.