corn (1) Reduce moisture. Maize seeds have low water content, can prevent freezing damage, are not susceptible to insects and mildew, and can also postpone the maintenance of seed viability. The most effective measure to reduce seed moisture is ventilation. There are two kinds of ventilation: First, natural ventilation, according to the temperature and humidity inside and outside the warehouse, a reasonable opening and closing of doors and windows, the use of air convection ventilation, its effect depends on the internal and external temperature difference, wind speed, stacking method, stack size, seed pores Degree and so on. When the outside temperature and outside humidity are lower than the inside of the bin and the wind speed is large, the stacking is small and the porosity is large, the ventilation effect is good. Otherwise, the effect is poor. The second is mechanical ventilation. The outside dry cold air is blown into the seed heap or the hot and humid air inside the seed heap is sucked out to cool the seeds quickly and dry. (2) Qiao storage. There are two methods: First, the panicle method to store the panicle, which is conducive to seed ripening and drying, reducing the damage of the worms and microorganisms; but the utilization rate is low. The second is the grain method. The requirements for seeds are more stringent, because the pellets are prone to insects and mildew. Generally, the relative humidity is less than 80%, and sugar is better. It is suitable for small storage in farmhouses. potato First, the potato seeds were sorted, and diseased and disabled people were sorted out. Then, the robust potato pieces were placed in nylon bags, each containing 10 to 15 kg, and piled in a vacant house. 1.5 to 2.0 meters, but you must stay away from the four walls and maintain a distance of more than 30 cm to prevent cold attacks. Then use pots or bowls to hold the water and place it in the middle of the house. After the winter season, the temperature will drop. When there are signs of freezing on the water surface, the quilts should be covered to keep warm. A thermometer is hung in the room and adjusted according to the temperature display. The thickness of the quilt. wheat (1) Prevent moisture absorption. Wheat has strong hygroscopicity, thin skin, loose skin, red skin, hard skin than white skin and soft wheat have poor hygroscopicity. Therefore, wheat grains with water content below 12% should be put into storage in time, and closed storage methods should be adopted to reduce the moisture absorption of seeds and maintain seed viability for a longer period of time. When moisture is 13% to 14%, the seed temperature must be controlled below 25°C. When the moisture content is between 14% and 14.5%, the temperature must be below 20°C to prevent moisture absorption and ensure seed quality. (2) Keep hot. Wheat has high heat resistance, high heat resistance of protein and Respiratory enzymes, and high starch gelatinization temperature. Therefore, strong heat resistance, wheat grains with moisture content below 17%, as long as the temperature does not pass 54 °C, drying treatment will not affect the germination rate of the seeds (wheat seeds into the warehouse to kill insects is based on this principle), but The heat-resistance of physiologically mature wheat seeds is reduced, and it is not suitable for insecticides in hot storage. (3) need to be cooked. The wheat species need a certain ripening period. The red hull wheat has a thick seed coat and the ripening period is longer than that of the white husked wheat, which can reach 80 days or more, and the white wheat in the north has only about 10 days. Without ripening wheat, there will be "sweat" and "instability" during the storage period. According to this situation, wheat seeds must be fully cooked before storage. (4) Storage method. Wheat seeds can be stored in bags and bulk, sealed at low temperature, stored under pressure, and stored in hot places. These are effective storage measures. Wheat is a conventional variety, and most farmers can use porcelain vats and plastic bags for storage of a small amount of seeds. When storing with a porcelain urn, first put a certain amount of hay ash on the bottom of the cylinder, separate the seed and ash with kraft paper, place the fully sun dried seeds into a porcelain jar, and cover the surface again; use a plastic bag for storage. At that time, the seed moisture content must fall below the safe water content. The snail's farming methods include pool breeding, rice paddy farming, and fish polyculture. The ponds cultivated by special pools should have small areas, soft soil, and adequate water sources. The pond can be suitably grown with some aquatic plants such as bamboo shoots, bamboo shoots and mushrooms to fully utilize the land and create a hidden ecological environment for snails. The quality of water in aquaculture ponds is one of the keys to the success or failure of farmed snails. Note: Any water containing a large amount of iron and sulfur must not be used. The optimum temperature for snail breeding is 20°C-26°C, and the food intake is strong. When the temperature of the water rises to 30°C-33°C, the snail will dive into the earth to avoid the heat and grow without moving. The meat is also hard and boring. Therefore, we must pay attention to adjust the water temperature below 26 °C. Cultured water depth is generally 30 cm. In order to increase the water temperature in winter, it can be reduced to about 20 cm. This amount of water is not only required for fertility in snails, but also has a defensive effect. The paddy field also supports snails, and it is best to use snails that are not wet and wet throughout the year. The organic fertilizers and weeds in rice fields can supply snails. When the stocking density is high, they can be supplemented and fed with some artificial baits. In the shade of rice, the snail grows in summer. Therefore, it is a kind of simple and labor-saving farming method to raise the snail in paddy fields, but it is necessary to pay attention to avoid using pesticides, otherwise it will produce poison to snails. The snails can be mixed with the first-instar catfish species and feed their feed. After being decomposed in the soil, snails can be used as snail feed. However, it is not appropriate to polyculture with second-instar eel, as this individual's eel will ingest the snail shellfish. It can also be mixed with other fish or aquatic animals. Sometimes, in order to increase the production of famous aquatic products, snails are used as high quality feed for herring, turtles, and quail. In its natural state, snails grew fastest in the first three to four months, then gradually slowed down, and no longer grew after two years. Therefore, snails must seize the opportunity during the artificial breeding period, and fully feed them to make them grow in a relatively short period of time. Such snails are large, soft and delicious, and they are not as natural as they are. The yield is also high. Capture method The sand that is captured by the snails can be captured by hand nets in addition to reaching into the pool for fishing. The diameter of the net is 20 cm and the mesh is 2.8 cm. When the fish is caught, small nets can be kept in the pond for continuous culture. If the aquaculture pond has a large area, stir-fried rice bran can be mixed with clay to form a dough and put into the pool. When the snail smells the aroma, it will feed in a cluster and can be picked up and left to stay small or caught with a net. Single Use Stomach Feeding Tube,Medical Disposable Nasogastric Tubing,Medical Disposable Pu Nasogastric,Disposable Medical Stomach Feeding Tube Shaoxing Jenston Medical Products Co., Ltd. , https://www.sxjcmed.com
At the same time, in the deep winter season, hanging curtains on the doors, hanging curtains on the windows, and blocking the intrusion of cold winds outside, use this method to invest less, the temperature is easy to control, and the loss of seeds is low.