How to plant corn

First of all, corn planting should choose excellent seeds. Before planting, we can soak the seeds to accelerate germination, which can improve the germination rate. When we see the white roots grow, we can sow corn. When we sow corn, we should choose loose and fertile sunny slopes with good drainage for planting. Before planting, we should dig deep and dig the land. The planting time of corn is early April every year, the sowing depth is 4~5 cm, and it usually germinates in about 10 days. You can squat seedlings after rubbing your teeth, mainly to cultivate the drought tolerance of plants and make their roots grow well. Corn likes fertilizer and needs a lot of fertilizer in the process of planting. Apply fertilizer every 10~ 15 days. Pay attention to the coordinated supply of phosphorus, nitrogen and potassium fertilizer, and be diligent in weeding in the field to prevent competition with crops for fertilizer. Although corn is drought-tolerant, it can't be short of water during flowering and fruiting, otherwise it will cause empty fruit. 1 batch of corn can be harvested from August to September after 4 to 5 months of growth.

Compared with traditional food crops such as rice and wheat, corn has strong drought tolerance, cold tolerance, barren tolerance and excellent environmental adaptability. Corn has high nutritional value and is an excellent food crop. 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. Because corn resources are extremely rich, cheap and easy to obtain, it also has many biological activities such as antioxidation, antitumor, hypoglycemic, immunity improvement, bacteriostasis and sterilization. It has broad development and application prospects.

Corn silk contains crude fiber, crude protein, polysaccharide and crude fat. The chemical composition of corn stigma varies greatly in different varieties and different periods. The contents of total phenols and total anthocyanins in corn silk reached the highest at milk stage, total flavonoids and antioxidant activity reached the highest at spinning stage, while the contents of total phenols and total flavonoids and antioxidant activity in sweet corn and white jade rice reached the highest at spinning stage.