Introduction of maize variety approval of Zhongdan 909
Zhongdan 909 is a new non-transgenic maize variety, which was bred by Huang Changling, a researcher from Institute of Crop Science, Chinese Academy of Agricultural Sciences. On 20 1 1, it was approved by the National Crop Variety Approval Committee in Huanghuaihai Summer Maize Region, with the approval number: Guoshenyu 2011.
In addition, the price of Zhongdan 909 corn seeds is uniformly sold nationwide. Please consult the official customer service of Zhong Dan for the specific price.
Characteristics of zhongdan 909 maize seeds
Suitable planting area
Zhongdan 909 corn has a wide adaptability. In the spring maize planting areas in East China and North China, the active accumulated temperature should be ≥ 10℃, around 2700℃.
This maize variety can be planted in Heilongjiang, Jilin, Liaoning, Inner Mongolia, Xinjiang, Gansu, Ningxia and other provinces, cities and autonomous regions.
Zhongdan 909 corn is also suitable for planting in summer corn areas such as Henan, Shandong, Anhui, Jiangsu, Hebei, Shaanxi, Shaanxi and Beijing. It is also suitable for southwest spring sowing.
Medium maturity
Zhongdan909 is planted in spring corn areas in northeast and northwest China, and the whole growth period from emergence to maturity is about 130 days. The maize variety was planted in the summer maize area of Huang-Huai-Hai, and the whole growth period from emergence to maturity was 10 1 day.
Super-tolerant close planting
Zhongdan 909 corn is planted in the spring corn areas of East China and North China, and the most suitable planting density is about 4500 ~ 5000 plants.
Zhongdan 909 maize can be planted up to 7,000 plants in Huanghuaihai summer maize area, with a maximum yield of 8,000 plants per mu in Xinjiang. There are no empty trees, and the sticks are even.
Short pole anti-fall
Zhongdan 909 has a compact plant type, with an average plant height of 260 cm, ear height 108 cm, and leaf number per plant of 2 1.
Zhongdan 909 corn seeds were planted in the northwest spring corn area, with an average plant height of 278cm, ear position 123cm and leaves of 2 1 piece.
In addition, the stalk of this corn variety has strong toughness, good elasticity and strong lodging resistance. Especially in the later stage, mature plants are not prone to lodging, which is especially suitable for mechanical harvesting.
Good disease resistance
After two years' inoculation and identification by hebei academy of agriculture and forestry Institute of Plant Protection, the variety is resistant to Curvularia leaf spot, big leaf spot and small leaf spot, moderately resistant to tumor smut, stem rot and corn borer, and highly susceptible to tumor smut. Comprehensive disease resistance is very good.
high and stable yield
The average yield per mu of Xinjiang Zhongdan 909 corn in 20 14 years 1376 kg. 20 10-20 15, 38 of the 53 sites have an yield of over 1000 kg per mu.
Key points of cultivation techniques of Zhongdan 909 maize
① Planting in East China and North China
Zhongdan909 was sown in the spring corn areas of East China and North China, the best sowing date was from late April to early May, the planting density was 4,000-4,500 plants per mu, and the maximum planting amount was 8,000 plants.
② Planting in Huanghuaihai area
Zhongdan909 was planted in Huanghuaihai summer maize area, the best sowing date was mid-June, and the sowing density was 4500 ~ 5000 plants/mu.
③ Pests and diseases and fertilization
Use seed dressing before sowing to control underground pests, such as cutworms and Spodoptera litura. Top-dressing urea15 ~ 20kg per mu at the big trumpet stage, and paying attention to the control of corn borer. Pay attention to the prevention and control of aphids, smut and leaf spot in the middle and late growth period.
Warm reminder: The relevant introduction of this article has been sorted out through the network, and the specific information is subject to the introduction of the corresponding seed official website.