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Open pollination japonica

Nanjing 40

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Nanjing 40

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Open pollination japonica

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Variety type: Japonica conventional rice

Approval number: Sushendao 200206

Characteristics: This variety is a late-maturing medium japonica rice with a full growth period of 153.5 days and a plant height of about 100 cm. It has good lushness at the seedling stage, strong tiller, more panicles, and larger panicle types. The effective ear per mu is about 230,000, the number of grains per ear is about 100, the seed setting rate is about 88%, and the thousand-grain weight is 27-28 grams.

Resistance performance: moderate lodging resistance, resistance to rice blast and bacterial blight.

Quality performance: According to the inspection of the Rice and Products Quality Inspection Center of the Ministry of Agriculture, the physical and chemical indicators of rice quality have reached the national standard three-level high-quality rice standard.

Yield performance: The average yield per mu in the two-year regional test in Jiangsu Province was 610.7 kg, an increase of 1.46% compared to the control. The average yield per mu in the production test was 620.9 kg, an increase of 7.4% compared with the control.

Suitable area: It is suitable for planting under middle and upper fertility conditions in the central area of Jiangsu Province.

Key points of cultivation techniques:

1. Sow seeds at an appropriate time and cultivate strong seedlings. Generally, the seedlings are planted in early and mid-May, with a seeding rate of 2.5 to 3.0 kg per acre of field. Seedlings should be sown with enough fertilizer to cultivate strong seedlings.

2. Reasonable dense planting. Generally, 20,000 holes are planted per acre, with 3-4 seedlings per hole, and the basic seedlings are 70,000 to 80,000.

3. Reasonable fertilizer and water. This variety is a heavy ear-grain variety. In fertilizer management, tillering fertilizer should be re-applied, and the peak seedling should be controlled at around 300,000. Earlier application of ear fertilizer can ensure that tillers compete for large ears and increase ear formation rate. Generally, pure nitrogen is applied 20 per mu. About kilograms, and pay attention to the combined application of nitrogen, phosphorus and potassium. In water slurry management, seedlings should be planted in shallow water and tiller with thin water. When the stems and tillers per acre reach 200,000, the field will be lightly laid, and then dry and wet alternately to booting, booting to blooming stage to maintain a shallow water layer, and dry and wet alternately after full ears. Water was cut off a week before harvesting.

4. Prevention and control of pests and diseases. Pharmaceutical seed soaking is good for preventing and controlling seedling disease, and attention should be paid to the prevention and treatment of rice blast.

Nanjing 5055

Lindao 20

Jiangsu Hongqi Seed Industry Co., Ltd. is a state-owned seed enterprise integrating rice, wheat and corn breeding, improved seed breeding and seed marketing. It was established in 2001 with a registered capital of 105.81 million yuan. The company has the right to import and export seeds, and holds the integrated seed business license of "breeding, breeding and promotion" issued by the Ministry of agriculture. The company is a key leading enterprise of agricultural industrialization in Jiangsu Province, a high-tech enterprise in Jiangsu Province, a key enterprise of seed industry in Jiangsu Province, an agricultural science and technology enterprise in Jiangsu Province, and an enterprise with "AAA" credit rating of China Seed Association. The company has been rated as an enterprise "abiding by contracts and keeping promises" for 18 consecutive years,