Dry Fish Fillet,Dry Fish Food,Dry Fish Flakes,Dry Fish Cake Yanji Yongzhen Food Co., Ltd , https://www.yanjiyongzhenfood.com
**I. Rice Field Project**
1. The paddy field project is designed with sufficient water sources, excellent water quality, and no pollution. It features convenient drainage and irrigation systems, as well as protection against drought and flooding. The area of the field should range between 2,000 to 7,000 square meters. A ditch system is constructed around the field: east-west ditches are 3.5 meters wide at the top, 1.5 meters at the bottom, and 1.5 meters deep. North-south ditches are narrower, with a width of 2.5 meters at the top, 1 meter at the bottom, and 0.8 meters in depth. The total area of these ditches accounts for 35% of the total area, while the rice planting area takes up 50%. East-west sorghum mounds placed in the ditches cover 15% of the land, providing additional habitat for crawfish. Additionally, cash crops can be planted in the environmental space to increase economic returns.
2. **Habitat Simulation**: To prevent soil accumulation from digging and silt blockage, wooden stakes (15 cm in diameter) are inserted 20 cm above the ditch bottom, spaced 50 cm apart. Each stake creates an artificial cave, 30 cm long, for crawfish to hide. These caves are staggered on both sides of the ditch to enhance shelter and activity.
3. **Anti-Escape Facilities**: The embankment of the pond is surrounded by plastic film, cement boards, or brick walls that are 60 cm high and 25 cm thick. The drain outlet must be tightly covered with a dense mesh to prevent escape.
4. **Cleaning the Shrimp Ponds**: In winter or early spring, the ditch water is drained, and the sludge at the bottom is removed. The embankments are trimmed, and the field is dried for a month to maintain cleanliness.
5. **Disinfection of the Pond**: Based on the actual water volume, 200 grams per cubic meter of disinfectant is used to treat the paddy fields before stocking.
**II. Crop Planting**
1. **Rice Cultivation**: The selected variety is "Glutinous Rice No. 90," known for its strong stalks and disease resistance. After wheat harvest in late May, 1,250 kg of composted pig manure and 20 kg of soil testing formula fertilizer are applied in mid to late June. Rice is planted using machines at spacing of 27 cm × 30 cm or 18 cm × 30 cm, resulting in 11,000–12,000 holes per mu, with six plants per hole, totaling 66,000–70,000 plants per acre.
2. **Chili Pepper Cultivation**: Sorghum stalks are built for planting, and "Chaotian Peppers" (Korean Tianyu No. 3) are selected. In late June, 45–50-day-old seedlings are planted at 50 cm × 30 cm spacing. Interplanting results in 4,444 seedlings per acre, totaling about 200,000 chili plants.
**III. Shrimp Stocking**
1. **Broodstock Release**: Broodstock is released annually from September to October, with sizes ranging from 10–15 cm, at 40–60 kg per mu.
2. **Juvenile Shrimp Stocking**: In June each year, juvenile shrimp (3–4 cm in size) are stocked at 20–30 kg per mu.
**IV. Daily Management**
1. **Water Quality Management**:
- **Cultivation**: Organic fertilizer is applied every two weeks from late June to mid-August. Fermented organic manure (50–60 kg/mu) is used to maintain water color (bean green or tea brown) and transparency (30–40 cm). Saffron is partially submerged in water using the “flooding method†in March for green organic fertilizer.
- **Regulation**: Water is added based on the principle “light in spring and autumn, full in hot seasons.†Lime (10–15 kg/mu) is sprayed every 15–20 days, and microbial preparations like photosynthetic bacteria are used to regulate water quality.
2. **Feeding**:
- **Feed Types**: Animal feed includes plankton, snails, and wild fish naturally grown in the base. Plant feed consists of saffron, lantern grass, duckweed, and water hyacinth.
- **Bio-feed Cultivation**: 500–750 kg/mu of organic manure is applied 10–15 days before shrimp release. Fermented livestock manure (50–60 kg/mu) is used for one week after stocking. In April and May, safflower seeds are planted to provide plant-based food.
- **Aquatic Grass Cultivation**: Aquatic grass covers 60% of the water surface during farming. Species include saffron, watercress, lantern grass, duckweed, and water hyacinth.
- **Snail and Fish Feeding**: 300 kg/mu of snails are fed before and after Qingming Festival. 50–100 g of squid species are released at 200 tails/mu in mid-March, or 3,000 perch per mu in late June.
- **Feeding Requirements**: Shrimp are fed periodically and quantitatively. Bio-feed is prioritized in the early stages, plant feed in the middle, and animal feed in the later stage. Feed is given twice daily, with 1–5% of their body weight. Adjust feeding based on consumption.
3. **Field Management**:
- **Fertilization**: Organic manure (300–400 kg/mu) is applied before transplanting. Chemical fertilizers are minimized.
- **Pest Control**: Artificial methods, physical insecticides (e.g., light traps), and biological controls (e.g., Procambarus clarkii) are used to reduce pesticide use.
- **Predator Elimination**: Ducks are not allowed near the trenches, and predators such as otters, snakes, and birds are controlled.
- **Water Level Management**: Water level is gradually increased to 12–15 cm as shrimp grow. Water is refreshed every 3–5 days, more frequently in summer. Regular checks ensure safe conditions.
4. **Disease Prevention**: Photosynthetic bacteria and quicklime are used to maintain water quality. No chemical drugs are used due to the focus on rice production.
**V. Benefit Analysis and Conclusion**
1. **Economic Return**: From April, shrimps can be harvested. Shrimp over 35 g are sold, while smaller ones are returned for further growth. On October 16, 300 acres produced 28,675 kg of crawfish, generating 661,980 yuan. With 10,000 kg still in the field, the estimated value reaches 400,000 yuan. Chili peppers yield 40,000 kg, worth 8.1552 million yuan. Total annual output is 2.0619 million yuan, with an average of 6,873 yuan per mu. Production cost was 924,115,000 yuan, leaving a profit of 1,137,865,000 yuan, or 3,793 yuan per mu.
2. **Conclusion**: The field layout ensures efficient production, with each mu as a unit and 10 mu as a production group. Rice fields are leveled and divided into high and low areas for better crop growth. Sorghum provides wind protection and prevents lodging. Chili peppers thrive in soft soils and help control pests. This integrated system enhances productivity and sustainability.