What is the yield per mu of corn? How many months will it be planted? What are the high-yielding varieties?

Corn alias maize, sticks, bao Gu, Baomi, Baomi, etc., is an important food crop and feed crop. So what is the yield of one mu of land? How many months will it be planted? What are the high-yielding varieties? It is learned from Mr. Wang in Hunan that there are many factors that determine corn yield, and differences in geographical environment, varieties, cultivation and management techniques may lead to differences in corn yield. in the south, the highest yield per mu can reach more than 900 kg. On the other hand, the cultivation investment of corn planted in a large area is not high, the management is not fine, and the average yield per mu in a large area is about 650 kg. If planted at high elevations, the yield is less than 500 kilograms.

How long will the corn be planted?

1. 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.

2. Maize is a high-yield crop, which needs a large amount of fertilizer, so reasonable fertilization is necessary to meet the nutrient needs of maize in the whole growth period. According to the experiment, the production of 100 kg corn seed requires 2.5 kg of nitrogen, 1 kg of phosphorus and 2.1 kg of potassium. If you produce 500 kilograms of corn per mu, you need about 33 kilograms of urea per mu, or 50 kilograms of ammonium nitrate, 31 kilograms of superphosphate and 13 kilograms of potassium sulfate.

What are the high-yielding varieties of corn?

1. Longgao L2

Longgao L2, a high-yield maize variety, is famous for its grain yield of 667 tons per mu and iron stalk resistance. under good conditions of high water and fertilizer, Longgao L2 has created a high yield record of 32000 jin per hectare, which is praised by the industry.

2. Liangyu 99

Approval number: national Review Jade 2012008.

Liangyu 99 is a density-tolerant variety with spring sowing growth period of about 135 days, plant height of 270 cm, ear position of 100 cm and compact plant type. Fruit ear cone type, ear length 400px, ear row number 16-18 rows, yellow grain, horse tooth type, quality, 100-grain weight 36.5g, red axis. For planting in plots with medium fertility and above, spring sowing is suitable for planting in most late-maturing corn areas in Liaoning, with a suitable density of 4000,000 plants / mu and a general yield of 700kg per mu.

3. Denghai 6702

Approval number: national Review Jade 2011009.

Approval opinion: this variety conforms to the national maize variety approval standard and has been approved. It is suitable for summer sowing in Shandong, Baoding and the south of Hebei Province, Henan (except Pingdingshan and Zhoukou), Guanzhong Irrigation District of Shaanxi (except Xianyang), northern Anhui, northern Jiangsu and Yuncheng, Shanxi. Pay attention to the prevention and control of stem rot, powdery mildew and Curvularia leaf spot in areas with high incidence.

4. Delinong 988

Approval number: national Review Jade 2011010.

Approval opinion: this variety conforms to the national maize variety approval standard and has been approved. It is suitable for summer sowing in Shandong, Henan (except Zhengzhou and Zhoukou), Baoding and the south of Hebei (except Shijiazhuang), northern Jiangsu and Guanzhong irrigation area of Shaanxi. Pay attention to prevent lodging, use with caution in areas with high incidence of tumor powdery mildew.

5. Zhongdan 909

Approval number: national Review Jade 2011011.

Approval opinion: this variety conforms to the national maize variety approval standard and has been approved. It is suitable for summer sowing and planting in Henan, Baoding and southern areas of Hebei, Shandong (except Binzhou), Guanzhong Irrigation District of Shaanxi, Yuncheng of Shanxi, northern Jiangsu and northern Anhui (except Huaibei City). Use with caution in areas with high incidence of powdery mildew.

6. Dredging sheet 29

Approval number: national Review Jade 2011012.

Approval opinion: this variety conforms to the national maize variety approval standard and has been approved. It is suitable for summer sowing in Henan (except Nanyang and Zhoukou), Baoding and the south of Hebei (except Shijiazhuang), Shandong (except Zaozhuang), Xianyang in Shaanxi, Yuncheng in Shanxi, northern Jiangsu and Fuyang in Anhui. Pay attention to prevent lodging, use with caution in areas with high incidence of tumor powdery mildew.

7. Tunyu 808

Approval number: national Review Jade 2011013.

Approval opinion: this variety conforms to the national maize variety approval standard and has been approved. It is suitable for summer sowing in Henan, Hebei Baoding and south areas (except Shijiazhuang), Shandong (except Yantai), Guanzhong Irrigation District of Shaanxi and Yuncheng of Shanxi Province. Be careful not to lodge.