The plant type is compact, the plant height is about 250.5 cm, the ear position is about 8 1cm, the number of leaves 19, the ear is tubular, the ear length 19.7cm, the number of rows per ear 16- 18 rows, the ear diameter is 5 cm and the ear axis is red. Its disease resistance is strong, with crude fat content of 4. 12% and crude starch content of 72.40%.

Denghai11/introduction of maize varieties

1, Denghai11/The variety source of maize seeds is DH392? Denghai 7 12 is characterized by compact plant type, plant height of about 250.5 cm, ear height of about 8 1 cm, number of leaves 19, purple leaf sheath, purple leaf margin, green leaves, pale purple glume and purple anthers. The spike is tubular, the number of rows is 16- 18, the spike length is 19.7 cm, the spike diameter is 5.0 cm, the spike axis is red, and the horse teeth are yellow, and the 100 grains weigh 39 grams.

2. The lodging resistance rate of this variety in each test site is 965438 0%, and the grain water content in the suitable harvest period is 28.9%. 30% accounts for 63.4% of all test sites. Grain bulk density is 765g/L, crude fat content is 4.65438 0.2%, crude protein content is 65438 0.73%, lysine content is 0.29%, and crude starch content is 72.40%. The key point of cultivation technology is to cultivate in plots with medium fertility or above, with planting density of 4500-5000 plants per mu and sowing date in the first half of June.

3. This variety is suitable for planting in southern and southern Shandong Province, Henan Province, Baoding City and Cangzhou City in Hebei Province, Yuncheng City and Linfen City in Shanxi Province, Guanzhong Irrigation District in Shaanxi Province, north of Huaihe River in Anhui Province, some Pingchuan areas in Jincheng City, Beijing-Tianjin-Hebei Province, including Langfang City, Tangshan City, northern Baoding City, northern Cangzhou City and summer sowing areas in Beijing.

Second, matters needing attention before sowing corn seeds

1, land selection

Planting areas should be far away from roads and industrial and mining areas to avoid the influence of industrial production and urban pollution on corn growth. The plot suitable for corn sowing should have deep soil layer, loose soil and good fertilizer conservation performance. When planting, you can't continue planting in the same land, otherwise it will be prone to pests and diseases.

2. Soil preparation

In the process of soil preparation, excessive evaporation of soil moisture should be avoided as far as possible, and large clods should not appear in the raked stratum, and the overall effect should be virtual and real. In the season of alternating freezing and thawing, it is necessary to arrange the plots in time so that the surface cracks can be leveled in time, which is beneficial to soil moisture conservation and water improvement.

3. Rational fertilization

In order to ensure sufficient nutrition supply for seeds in the development process, it is necessary to improve the physical properties of soil by applying base fertilizer, so as to effectively cultivate soil fertility, which is beneficial to the root system development of corn seeds.

4. Reasonable close planting

Corn has a short growth period and a large water demand. Henan and other central plains areas are rich in summer precipitation and high in temperature, which is suitable for planting corn twice a year.