Why is corn a high-yield crop?

Corn and sorghum are C4 crops. Compared with C3 crops wheat and rice, they have high photosynthetic efficiency and high conversion efficiency, so they are called high-yield crops.

Compared with traditional grain crops such as rice and wheat, corn has strong drought tolerance, cold tolerance, barren tolerance and excellent environmental adaptability, and is an excellent grain crop with high nutritional value.

As a high-yield grain crop in China, corn is an important feed source for animal husbandry, aquaculture and aquaculture, and it is also one of the indispensable raw materials for food, medical care, light industry, chemical industry and other industries.

Extended data:

It is cultivated all over China. Widely cultivated in tropical and temperate regions all over the world, it is an important grain.

There are many varieties of corn, which are divided into food feed varieties, vegetable varieties (including waxy varieties, sweet varieties and corn buds), processed varieties (sweet corn and corn buds) and popcorn varieties (special varieties for popcorn).

Taking summer corn as an example, the technology of "one increase and four changes" was implemented: increasing planting density reasonably according to variety requirements; Replace planting with density-tolerant varieties; Using no-tillage precision direct seeding technology, the density of direct seeding corn is suitable and the population uniformity is good; Changing extensive fertilization into soil testing formula fertilization; Change artificial planting into mechanized corn operation.