Yilong Dashan Fragrant Rice

Yilong Dashan Fragrant Rice

Yilong Dashan Fragrant Rice is a geographical indication protected product.

　　Yilong Dashan Fragrant Rice is a specialty of Sichuan Province.

　　Cultivation

　　　　1. Sowing time, transplanting time, and specifications: Seedling cultivation adopts the dry nursery method. The sowing period is mid-to-late March, with a seeding rate of no more than 18.75 kg per hectare of field and approximately 112.5 kg per hectare of seedbed. The transplanting period is from late April to late May, with a planting density of 225,000 to 255,000 hills per hectare.

　　2. Water and fertilizer management: Irrigation uses unpolluted mountain spring water and water stored in ponds, reservoirs, and weirs. A water-saving irrigation technique of “shallow—wet—dry—shallow—wet” is adopted. That is, shallow water is used during transplanting and regreening, keeping the water layer within 3 cm. The field should naturally dry up within 7 days after transplanting and be sun-dried for 2 to 3 days. The early tillering stage remains moist, while the late tillering stage is sun-dried; the mid-to-late booting stage and early grain-filling stage maintain a shallow water layer of 1 to 2 cm; the milk-ripe stage keeps the field moist, with flush irrigation every 3 to 5 days; the yellow-ripe stage transitions from moist to dry field water to facilitate harvesting.

　　Fertilization combines organic and inorganic fertilizers, with balanced use of nitrogen, phosphorus, potassium, and medium-to-micronutrient fertilizers. Apply 150 to 180 kg of pure nitrogen, 80 to 100 kg of phosphorus (P₂O₅), 130 to 150 kg of potassium oxide (K₂O), and about 15 tons of high-quality well-rotted farmyard manure per hectare. Organic fertilizer and phosphorus fertilizer are all applied as base fertilizer. Nitrogen fertilizer is 70% as base fertilizer, 20% as tillering fertilizer, and 10% as panicle fertilizer. The use of nitrate nitrogen fertilizer is prohibited.

　　3. Integrated pest, disease, and weed management: Adhere to the principle of integrated control primarily based on prediction and forecasting. Focus on protecting and utilizing beneficial organisms in the rice fields. Coordinate the use of biological, agricultural, manual, and physical measures. Accurately grasp control thresholds, optimal control timing, and pesticide safety intervals, and implement rational rotation of pesticides.

　　4. Harvesting: The harvesting period is from late August to early September, when the rice reaches 85% to 90% maturity.

　　The geographical indication product protection area of Yilong Dashan Fragrant Rice is based on the scope proposed in the Sichuan Province Yilong County official letter “Regarding the Definition of the Protection Scope of the Geographical Indication Product ‘Yilong Dashan Fragrant Rice’” (Yi Fu Han [2006] No. 18), covering the current administrative region of Yilong County, Sichuan Province.