Aofuyou 826

Aofuyou 826   Guoshendao 20196145

★ Main characters of the variety
Indica three line hybrid rice varieties.
The whole growth period of double cropping late rice in the middle and lower reaches of the Yangtze River is 109.2 days, 7.2 days shorter than that of the control Wuyou 308. The plant height is 98.8 cm, the ear length is 21.9 cm, the effective ears per mu are 192000 ears, the total grains per ear are 152.3, the seed setting rate is 86.6%, and the 1000 grain weight is 25.6 g. Main indicators of rice quality: head rice rate 61.8%, chalky grain rate 5%, chalkiness 0.8%, amylose content 15%, gel consistency 60 mm, length width ratio 3.4, reaching the second level of the standard of "Quality of Edible Rice Varieties" in the agricultural industry.

★ Adaptability
Yield performance: participated in the regional test of late indica early maturing group in the middle and lower reaches of the Yangtze River in 2016, with an average yield of 606.76 kg per mu, 3.81% more than the control Wuyou 308; In 2017, the average yield per mu was 572.05 kg, 4.28% higher than the control Wuyou 308; The average yield per mu in two years' regional trials was 589.41kg, 4.05% higher than that of the control Wuyou 308; In the production test in 2018, the average yield per mu was 611.46 kg, 1.54% more than the control Wuyou 308.
Resistance: the comprehensive index of rice blast in two years was 5.3 and 4.2 respectively, the highest loss rate of ear neck blast was 5 levels, bacterial blight was 9 levels, brown planthopper was 9 levels, and cold tolerance was 5 levels; Medium susceptibility to rice blast, high susceptibility to bacterial blight, high susceptibility to brown planthopper, and moderate cold tolerance.

★ Main cultivation measures
1. Sow timely and cultivate strong seedlings. Double cropping late rice was sown in the middle and lower reaches of the Yangtze River from June 20 to 24. The amount of seed used per mu in the field was 1.5 kg. It was sown thinly and evenly. The management of fertilizer and water during seedling stage was strengthened to control rice planthopper.
2. Timely transplant and reasonably close planting. Transplant at 5-5.5 leaf stage, suitable for seedling age of 20-27 days, suitable for dense planting, more seedlings are required, and planting density is 20 × 20 cm, planting 3 grain seedlings in each hole, and planting 70000-90000 basic seedlings per mu.
3. Strengthen the management of fertilizer and water in the early stage, control nitrogen and increase phosphorus and potassium. The level of fertilizer required in the field is medium. Generally, 25 kg of high concentration compound fertilizer with 45% of total nutrient content or 30~35 kg of common compound fertilizer with 30% of total nutrient content are applied per mu as base fertilizer. After transplanting and returning to green, 5~6 kg of urea and 8~10 kg of potassium chloride are applied per mu, and 12~15 kg of potassium chloride is applied per mu in the middle booting stage to promote large ears, multiple grains and lodging resistance. Nitrogen fertilizer is strictly controlled in the middle and late stages.
4. Implement the oriented management of "vigorous root, strong stem and healthy body" water slurry, shallow water to promote tillering, enough seedlings to sun the field, shallow water at booting and heading stage, dry and wet alternation during filling and fruiting, and water is cut off 7 to 8 days before harvest.
5. Comprehensive pest control. Focus on the prevention and control of rice blast, strengthen the chemical control of rice leaf roller, rice stem borer, rice planthopper, sheath blight and other diseases and pests according to the occurrence law of diseases and pests, and pay special attention to the prevention and control of bacterial blight.

★ Suitable planting area
It is suitable to plant late rice in the lightly affected areas of double cropping rice blast in Jiangxi Province, Hunan Province, Hubei Province, Anhui Province, and Zhejiang Province, but not in the heavily affected areas.

★ Planting season
Please pay attention to sowing and scientific management according to the specific arrangements of local climate, previous crops, seedling raising mode and planting habits, and according to the accurate time guided by the local agricultural technology department.