Knee Warmer is using batteries as power supply, to reduce pains of the knees. It provides stable heat penetrating so as to relax fatigue caused to the knees.
It is always with velcro for fastening better, which also enhance the heat therapy effect, as it touches better to human knees.
Below picture for reference, it can be made in different shapes and designs.
Knee Warmer Knee Warmers for Arthritis, Specialized Knee Warmers, Electric Knee Warmer, Thermal Knee Warmer Ningbo Makeheat Electrical Appliance Co., Ltd , http://www.makeheat.net
Rice paddies raise squid technical points
First, the selection and preparation of rice fields. It is better to farm alfalfa with weak alkalinity, less sediment, less rain, and better water retention. Cover an area of ​​1-5 acres, build a field and insert a protective sheet (70 cm soil, 30 cm mud) on the side of the building, install a metal escape prevention net in the water outlet, and dig 30-40 cm wide and 50 cm deep in the field. Tiangou, a well-shaped fish ditch, consists of 2 to 5 fish slides with an area of ​​4-6 square meters and a depth of 60 cm. Second, fertilization and release seed. Applying base fertilizer, using 300 kg of animal fertilizer per acre, drying 4-5 angels rot decomposition, and then impounding. After the first weeding in the paddy field, the quail species was released and sanitized with 3% saline solution for 10 minutes before stocking. Then, they were distributed at various points, and the stocking rate per mus of rice field was generally 20,000-30,000. Third, daily management. The squid's bait mainly includes cocoon, glutinous rice, wheat bran, and bean cake. Water temperature below 20 °C, plant foods accounted for 70%, daily feed accounted for 3% of carp body weight; water temperature 20-25 °C, plant and animal food each accounted for 50%, the daily feed amount was 10% of fish's body weight Water temperature above 30 °C, to reduce the amount of feeding or not feeding, so as not to cause salmon indigestion. At the same time strengthen daily field observation. Fourth, the application of chemical fertilizers, pesticides. The paddy field where the catfish is stocked should be dominated by basal fertilizer, supplemented by topdressing. In the rice growing season, fertilizer can be applied once every 15 days, each time using 50 kg of organic fertilizer or 5 kg of urea per acre. The urea should be mixed with the soil and then applied to the roots of rice. Rice field application should use high-efficiency and low-toxicity pesticides. Aqueous solutions should be sprayed on the leaves and the powder should be sprayed when the dew is not dry. To improve water quality, 20PPM lime water can be splashed in the fish ditch. Fifth, use chemical fertilizers and pesticides. The paddy field where the catfish is stocked should be dominated by basal fertilizer, supplemented by topdressing. In the rice growing season, fertilizer can be applied once every 15 days, each time using 50 kg of organic fertilizer or 5 kg of urea per acre. The urea should be mixed with the soil and then applied to the roots of rice. Rice field application should use high efficiency and low toxicity.