Key points and field factors for cultivation of corn seed Longgao L2

Today I will introduce to you the detailed information of corn seeds:

Introduction to corn seed Longgao L2

The high-yield corn variety Longgao L2 is known for its yield of one ton of grain per mu (667㎡) and its iron stalk resistance to lodging. Under good water and fertilizer conditions, Longgao L2 has created a high yield record of 32,000 jin per hectare, which is praised by the industry.

The corn seed Longgao L2 was bred by the High-yield Breeding Room of the Corn Research Institute of the Heilongjiang Academy of Agricultural Sciences and was approved by the Heilongjiang Variety Approval Committee in 2004. The variety is approved as Longgao L2 and its commercial name is Baoyu Longgao L2.

This corn variety has a wide adaptability, a growth period of about 122-127 days, and requires an effective accumulated temperature of about 2450℃-2500℃ from seedling to maturity, which is suitable for planting in the first and second accumulated temperature zones of Heilongjiang Province. It grows robustly in the seedling stage, with a plant height of about 2.8 meters, an ear position of 95 cm, upward leaves, a convergent plant shape, strong stalks that do not fall over, and live stalks that mature. It has good drought and stress resistance, and is highly resistant to corn leaf blight, head smut, corn gall smut, and bacterial wilt. The ear is cylindrical, with about 18-22 rows, about 45 grains per row, and a hundred-grain weight of 35 grams. The grains are horse-tooth shaped, orange-yellow, with a bulk density of 751 grams. It is a horny grain, and the yield can reach more than 1,000 kilograms under appropriate cultivation conditions.

Key points for cultivation of corn seed Longgao L2

It is advisable to maintain 3300-3500 seedlings per mu (667㎡). Under good fertilizer and water conditions, moderately dense planting can be achieved. When the number of seedlings per mu reaches 4500, there will be no empty stems and a higher yield will be obtained.

Apply 20 kg of diammonium phosphate, 1 kg of zinc sulfate, 3 kg of potassium sulfate per mu, and 15-20 kg of urea during the jointing period.

This variety will achieve higher yields when used in conjunction with Longgao L2 corn-specific fertilizer.

Longgao L2 is currently operated by Heilongjiang Qingyuan Seed Industry.

Characteristics of Baoyu Longgao L2

1Sparse planting produces large sticks, while dense planting results in higher yields.

2 The iron rods are resistant to lodging and the ears will not be lost during machine harvesting.

3. The live stems are mature and retain greenness well.

4. Disease-resistant and drought-resistant, highly adaptable and not picky about the soil.

5. No empty rod and no bald tip.

6. Horny grain, good color and good commercial quality.

7. High yield, tons of grain per small acre.

factor

1. The seedlings emerge quickly, have strong soil-arching ability, grow evenly and vigorously, and have strong drug resistance.

2. The plant is elegant, with thick stems and upward leaves, which enhances the variety's tolerance to density, field ventilation, light transmission ability, and high light energy utilization. The photosynthesis product is quickly converted, which is conducive to the formation and accumulation of dry matter, thereby increasing yield.

3. It has a strong lodging resistance. In 2010, most corn varieties in Heilongjiang Province lodged to varying degrees, but Longgao L2 remained intact despite being damaged by strong winds and soaked by rain.

4. It has outstanding drought resistance and well-developed aerial roots. Even when some corn varieties withered and died due to drought for several months, Longgao L2 still had no empty stalks.

5. The plant has good green retention, mature live stalks, and no premature aging. In autumn, ordinary varieties die naturally and stop growing, while Longgao L2 with mature live stalks can continue to increase production. 6. The size of the ears is uniform, there is no edge row advantage, no empty stalks, no black rice, the land is well fertilized and watered, the dry grain weight of a single ear is 7-8 taels, and the rice quality is excellent.

7. Tolerance to dense planting: When the number of seedlings per mu reaches 4,500, there will be no empty stems and no bald tips...

Field performance of Baoyu Longgao L2

The promotion scope of this variety has been expanding year by year in recent years, and its strong lodging resistance and high yield have gradually been recognized. In 2009, this variety still achieved stable yields in some areas of Heilongjiang Province with continuous rain for many days, low temperature and low sunlight, and frequent hail disasters. In some areas, the planting range of this variety has reached 70% of the corn planting area in the region.

In 2010, a strong wind in Mishan area on August 14 blew down 90% of corn varieties, causing serious yield reductions for a considerable number of corn varieties. However, Longgao L2 had basically no lodging phenomenon, indicating that it has a strong ability to resist lodging.

In terms of output, Longgao L2 has outstanding high yield performance. Statistical data in recent years show that Longgao L2 has turned "small acres and tons of grain" into reality and has made it the norm.

In 2010, Heilongjiang China National Grain and Oils Corporation listed Baoyulonggao L2 as a highly recommended variety.

Baoyu Longgao L2 comprehensive evaluation

In the high-yield fields, the average yield of Longgao L2 per mu exceeds 30,000 jin, far exceeding the varieties of the same maturity, creating a record for high corn yield in Heilongjiang Province. The commercial grain is hard in quality and has a relatively high selling price. The commercial grain is golden in color and is suitable as a food raw material, feed and brewing raw material. This variety has aroused great enthusiasm among industry insiders and farmers from all over the country.