The latest planting time of corn is what season it is to harvest corn and how to spread seeds.

Corn must have been eaten by many people, it has a very high edible value, and the taste is excellent, so now many people like to eat. At present, there are many people growing corn in our country, but many people are not very clear about its planting time and harvest season. Let's learn about it together.

The latest planting time of corn

The latest time for planting corn is in mid-July every year. Corn is divided into spring corn and autumn corn according to the planting time. Spring corn is sown in late April and early May and can be harvested in late August. Autumn corn should be sowed no later than mid-July and harvested in mid-late October. According to the morphological characteristics, growth characteristics and physiological characteristics, maize can be divided into several different growth stages, each stage includes different growth stages, these different stages and periods not only have their own characteristics, but also have a close relationship.

What season is the harvest of corn

Due to different weather conditions, corn harvest time is also different, generally from August to October, different parts of the country. Summer sowing in Hebei Province is generally mature from mid-late September to mid-October, while spring sowing is generally from early September to mid-September. The north is mainly spring sowing, mainly refers to Liaoning, Jilin, Heilongjiang and the north of Hebei, and other places basically have spring sowing at the same time. The mature period of corn in the north is generally from September 15 to September 23, and most of the corn in the south is after mid-October.

How does corn spread its seeds?

The main results are as follows: 1. Corn is a monoecious crop. Male flowers are on the top of corn. On sunny days, male flowers disperse powder. Through the action of wind, pollen is transmitted to the filaments of the middle female ear. After insemination, seeds are formed. After maturity, seeds are transmitted by humans and animals.

2. The corn seeds above are the corn seeds. People get them down to plant the land, and then harvest the corn seeds, which can be eaten or something.

3. When animals eat corn, some corn kernels will be left uneaten, and corn kernels germinate and grow up, which are also seeds.

4. Naturally grow, mature, root rot, seeds re-germinate in the field and grow into corn.

How to grow corn

The main results are as follows: 1. Seed treatment: the sunburned corn seeds absorb water quickly, germinate early, emerge neatly, the emergence rate is high, and the seedlings are stout.

2. Reasonable close planting: the characteristics of varieties should be considered in reasonable density. Secondly, if the soil fertility and the amount of fertilizer application are large and reasonable, the suitable density is large. In areas prone to drought and no irrigation conditions, the planting density should be sparse.

3. The calculation of sowing amount: seed amount (kg) = sowing density × number of grains per hole × grain weight × area. We should focus on developing corn precision sowing technology and improving sowing quality.

4. Sowing depth: 5~6cm is generally suitable for sowing depth. In the clay with good soil moisture, it should be sown shallowly, and 4~5cm is suitable. The loose sandy loam should be sown deeply, and 6~8cm is suitable. If the soil moisture is large, it is not suitable for deep sowing, but the dry soil should be sowed properly.

5. Suppression after sowing: after covering the soil after sowing, it should be suppressed properly, when it is dry, it should be severely suppressed, and when the soil moisture is too much, do not suppress.

6. suitable application of seed fertilizer: proper application of seed fertilizer can provide sufficient nutrients for seedling growth, promote seedling growth and enhance resistance to adverse factors such as drought, low temperature, disease and so on. Seed fertilizer includes a small amount of nitrogen fertilizer, phosphate fertilizer, potassium fertilizer and trace element fertilizer. The use of seed fertilizer should be controlled and isolated so as to avoid burning seedlings. General mu application of 5~8kg diammonium phosphate, the effect is good.

There are two planting times for corn, one is spring, the latest is autumn, so we need to pay more attention to it. Corn is harvested in autumn, but there may be some differences in some places. The spread of corn is generally man-made and independent.