Fire Stick,Red Fire Extinguisher,Vehicle Fire Extinguisher,Aerosol Extinguishing DONGGUAN TENYU TECH.INC , https://www.tenyutech.com
First, the choice of rice paddy fields with adequate water sources, fresh water, pollution-free, convenient irrigation and drainage of rice fields.
2. After the paddy field construction is completed, rice straw will be returned for use as fish feed and fertilizer. Raise Tajiri up to 1 metre around the field of Harada, make the base of the Terrier 50 centimeters wide, 30 centimeters wide at the top, immersed in a plastic pipe with a diameter of 15 centimeters at the inlet, and set a flood outlet at the outlet. Mesh nets are smaller than fish and used as a barrage.
Third, the species of stocking fish before stocking with a small amount of lime or bleaching fine field cleared wild fish, and then irrigation to 50 cm, when the water is poured into the mesh net for 40 mesh bag tied to the inlet of the plastic pipe to filter water Prevent wild fish from entering the field. Fish species are soaked with 2% to 3% saline for 10 minutes before stocking. The stocking volume is 300 mu, including 90 grass carp weights of 100 grams, 10 carp weights of 50 grams, and 180 carp lengths of 10 centimeters in length. .
4. Planting of ryegrass The ryegrass are planted on the open fields and on the field side of the fields. The area of ​​the grass is 10% to 15% of the area of ​​the rice fields, and the production of the grass is 5 tons, which is used for feeding grass carp. During the first 3 days of harvesting ryegrass, fertilizing ryegrass can shorten the time for two harvests and increase grass production.
Fifth, feeding and managing fish species generally do not feed feed during the first week of stocking, carp eat plankton, organic debris and rice lost in the field, grass carp can eat rice leaves. One week later, corn flour and wheat bran were fed at a rate of 5% of the body weight of the fish, and 40% of the body weight of the grass carp was fed to the cabbage leaves. After ryegrass can be harvested in November, the grass carp mainly invests in ryegrass. In November and December, 2% of pellet feed is fed every day. From January to February, the water temperature is low, and the food intake of fish is small. According to the weather, it is properly fed. March ~ In April, the water temperature gradually increased, and the food intake of fish increased gradually. 5% pellet feed and green feed were fed every day, and it was not left for the next morning.
Sixth, daily management Just put the fish when the irrigation 30 cm, so that rice roots can emerge seedlings for grass carp consumption. According to the growth of the regenerated rice and the eating and feeding of fish, the water level is gradually deepened. In November, the water level went deeper than 60 cm. Every morning and evening, we must go to Tanabe to check the activities of the fish and avoid the death due to lack of oxygen and the timely detection of fish diseases.
VII. Prevention and control of fish diseases During winter fish farming in paddy field, the cold time is longer and the disease is less. In the beginning of November, bleaching and chlorine dioxide and other disinfectants were used for the prevention of disinfection, and regularly mixed in the pellet feed, grass or soaked such as garlic, rhubarb, oxytetracycline and other drugs to achieve the purpose of comprehensive prevention.
The use of winter free paddy fields to raise fish can both increase the utilization of rice fields and increase farmers’ economic income. Now we will introduce the techniques of fish farming in winter.