Zhongdan 909 is a corn variety that was bred by the Crop Science Research Institute of the Academy of Agricultural Sciences. The full growth period of this variety is 101 days. It has green leaves, light purple anthers, compact plant shape, and a plant height of about 260 cm. The plant has good disease resistance and is resistant to large spot, small spot, smut, and stem disease. Rot, etc.
Introduction to Zhongdan 909 corn variety approval
Zhongdan 909 is a new non-GMO corn variety bred by a team led by researcher Huang Changling from the Institute of Crop Science, Chinese Academy of Agricultural Sciences. In 2011, it passed the Huanghuaihai summer corn area approval by the National Crop Variety Approval Committee, and the approval number is: National Approval Jade 2011011.
In addition, the price of Zhongdan 909 corn seeds is uniformly sold nationwide. For specific prices, please consult Zhongdan’s official customer service.
Characteristics of Zhongdan 909 corn seeds
Suitable cultivation areas
Zhongdan 909 corn has a particularly wide adaptability. In the northern spring corn planting areas of East China, it needs ≥10℃ active accumulated temperature is about 2700℃.
This corn variety can be planted in Heilongjiang, Jilin, Liaoning, Inner Mongolia, Xinjiang, Gansu, Ningxia and other provinces, municipalities and autonomous regions.
Zhongdan 909 corn is also suitable for summer corn areas in Henan, Shandong, Anhui, Jiangsu, Hebei, Shaanxi, Shanxi, Beijing and other summer corn areas in China. It is also suitable for spring sowing in southwest China.
Moderate maturity period
Zhongdan 909 is planted in the spring corn areas of East, North and Northwest China, and the full growth period from emergence to maturity is about 130 days. This corn variety is grown in the Huang-Huai-Hai summer corn area and has a full growth period of 101 days from emergence to maturity.
Super tolerant to dense planting
Zhongdan 909 corn is grown in the northern spring corn area of ??East China, and the optimal planting density is about 4,500 to 5,000 plants.
Zhongdan 909 corn can be planted up to 7,000 plants in the Huang-Huai-Hai summer corn area, and up to 8,000 plants per mu in Xinjiang. There are no empty plants and the sticks are large and even.
Short stems and lodging resistance
Zhongdan 909 corn species have a compact plant type. The average plant height planted in the Huanghuaihai summer corn area is 260 cm, the ear height is 108 cm, and the number of leaves on an adult plant 21 pieces.
Zhongdan 909 corn seeds are planted in the northwest spring corn area, with an average plant height of 278cm, an ear position of 123cm, and 21 leaves.
In addition, the stalks of this corn variety have strong toughness, good elasticity and high resistance to lodging. Especially in the later stages, the plants are less prone to lodging after maturity and are particularly suitable for machine harvesting.
Good disease resistance
After two years of inoculation and identification by the Plant Protection Institute of the Hebei Academy of Agricultural and Forestry Sciences, this variety is resistant to Curvularia leaf spot, large spot, and small spot. Diseases, medium resistance to smut, stem rot and corn borer, high susceptibility to smut. The overall disease resistance is very good.
High and Stable Yield
Zhongdan 909 corn achieved an average yield per mu of 1,376 kilograms in Xinjiang in 2014; from 2010 to 2015, 38 out of 53 points produced more than 1,000 kilograms per mu. .
Key points of cultivation technology of Zhongdan 909 corn
①Planting in East North China
Zhongdan 909 is sown in the spring corn area of ??East China, and the best sowing date is in From late April to early May, the planting density is 4,000 to 4,500 plants per acre, with a maximum of 8,000 plants.
②Planting in the Huanghuaihai area
Zhongdan 909 is sown in the Huanghuaihai summer corn area. The best sowing date is in early to mid-June, with a sowing density of 4,500 to 5,000 plants per mu.
③Pests and diseases and fertilization
Seed dressing before sowing can prevent and control underground pests such as cutworms and Spodoptera exigua. During the large trumpet period, apply 15 to 20 kilograms of urea per acre, and pay attention to the prevention and control of corn borer. In the middle and later stages of growth, pay attention to the prevention and control of aphids, smut, and large and small spot diseases.
Warm reminder: The relevant introduction in this article has been compiled online, and the specific information is subject to the introduction on the corresponding seed official website.