How many days is the growth cycle of corn, the growth period and process of corn?

The growth cycle of corn is generally 70-90 days, and the summer sowing is about 70-85 days. The growth process of maize is mainly divided into seedling stage, ear stage and flowering stage, and also divided into early-maturing varieties, late-maturing varieties and middle-maturing varieties. Different varieties have different growth periods. Corn is a cash crop and one of the main grains in China. Corn has high nutritional value. It can be used to make soup or popcorn.

Corn is widely planted in China, second only to rice and wheat, and ranks third among food crops. It not only has high yield, good quality, but also has strong adaptability, so it is widely loved by farmers.

At present, China has accumulated rich experience in corn planting and has good planting techniques. Generally speaking, the growth cycle of corn is mainly divided into seedling stage, ear stage and grain stage, which are described in detail below.

Seedling stage refers to corn planting to jointing stage. At this time, the seeds mainly take root and sprout, absorb more nutrients, and the root system grows rapidly but the surface development is slow. At this time, it is necessary to strengthen seed germination and seedling growth.

Conditions and requirements of maize sowing

When planting corn, don't plant it in a closed space. Plant in a place where the temperature is not lower than 8℃, the air humidity is about 60% and the air circulation is good.

After corn seeds are buried in the soil, they can germinate in about 6 days. When the corn grows to the three-leaf stage, the nutrients in the seeds will be exhausted, and the autotrophic will change to heterotrophic, and the demand for foreign nutrients will begin to increase, and nutrients will be absorbed from the soil. During this period, maize is drought-tolerant and afraid of waterlogging, which will lead to seedling death, while mild drought is beneficial to the development of maize root system.

Corn growth cycle

The jointing stage to heading stage of maize is the ear stage, and nutritional supplement and reproductive development are carried out simultaneously.

This period is the most vigorous stage of growth and development, and also the most important period of management. In management, topdressing should be done in time to supplement sufficient nutrients, so as to promote the increase of maize leaves and achieve the goal of large ears and multiple ears.

The stage from tasseling to maturity of maize is called flowering and fruiting stage. At this time, the leaves of corn have all spread out, the plants are fixed in length and enter the reproductive growth stage.

During this period, protective measures should be taken to prevent premature senescence of maize leaves, strive for more and heavier maize seeds, and finally achieve the goal of high yield and excellent yield.