Rice Shrimp Culture Technology

The paddy field is first transformed, cleared, disinfected, fertilized and planted with aquatic plants. Shrimp seedlings will be put into the middle and late March, and the daily bait will be mainly wheat, corn and small miscellaneous fish, which will be sprinkled evenly. And then catch them before planting. After harvesting, medium japonica rice was planted by double row planting method of big dragon. Finally, rice field management can be done well.

Paddy shrimp farming must pay attention to:

1. Selection of rice fields

Paddy field must be good water quality, sufficient water source, loamy soil, at least 30 mu to 50 mu of land. Before utilization, the surrounding fields should be reinforced, widened and heightened. Ditches are dug around the plot, generally about 0.7 meters deep and about two meters wide. After being prepared, the paddy field shall be drained ten days before the early shrimp seeds are put in. Each mu of shrimp ditch shall be disinfected with 75 kg of lime powder to eliminate those small miscellaneous fish, eel and black fish. After seven days, some aquatic plants shall be planted in the ditch. The planting area shall account for about 20% of the ditch.

2. Time for shrimp fry

Shrimp stocking time is generally in the middle and late August, after the rice is harvested. After clearing the plot, shrimp can be planted. The density of shrimp seeds is generally 5-17 kg of 23 g of shrimp seeds per mu.

3. Planting of aquatic plants

Water plants provide shelter for shrimp molting. Photosynthesis of water plants can increase dissolved oxygen in water, absorb nutrients in water, reduce water fertility and keep water fresh. In the high temperature season, aquatic plants can play a role in shading and cooling, which is conducive to the growth of shrimp. Aquatic plants can also improve the internal and external quality of shrimp. In addition, aquatic plants also have pharmacological effects that cannot be ignored, which can reduce the occurrence of lobster diseases.

Lobster pond suitable for planting aquatic plants, there are verticillata, Elodea, duckweed and water hyacinth. Among them, Hydrilla verticillata and Elodea are the main planting objects, duckweed is the matching variety, and water hyacinth is only used for lobster reproduction.

Rice shrimp farming is a kind of cross breeding, technical will be relatively strong. Therefore, farmers with breeding ideas must be able to put into production only when the conditions such as technology and market are available.