Three good ways to store new wheat
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1. There are three main heat treatment methods used for wheat: wheat heating, cylinder heating, and material heating. It is best to carry out these processes on sunny and hot days. After thawing the cement field around 9 a.m., first spread the wheat on the drying area with a thickness of about 1 cm. Then cover the wheat with materials such as quilts, blankets, or old sacks to move it out for drying. Before starting, spray dichlorvos or phosphorus-based insecticides to disinfect the area. The wheat must be turned over at least once every hour using a mallet to ensure the surface temperature reaches 46–50°C and the moisture content drops below 12.5%. By around 3 p.m., gather the pile and let it remain hot and stuffy for half an hour. Then cover the pile with sterilized materials and seal the cylinder tightly with plastic film, securing it with rope to prevent any air leakage. This will help the internal temperature of the cylinder rise above 40°C and maintain it for 8–10 days, effectively killing eggs, larvae, and adult pests, thus achieving an insecticidal effect.
2. The hypoxic storage method relies on the natural respiration of wheat during its ripening phase, when the grain temperature is high and respiration is active. This method involves sealing the wheat in a cylinder to create an anaerobic environment. As the wheat, pests, and microorganisms consume oxygen, the oxygen level inside the cylinder gradually decreases. Within 5–10 days, the oxygen concentration can drop to 2–5%, while carbon dioxide levels rise to 40–50%. This low-oxygen condition suffocates the pests. However, it's important to ensure that the wheat’s moisture content remains below 12.5% and the average grain temperature stays above 30°C for the method to work effectively.
3. Chemical preservation is another effective method for storing wheat in well-sealed cylinders. It can be done using aluminum phosphide tablets, or through low-oxygen and low-dose treatments. In addition, phosphorus-based agents can be used alongside wheat to prevent pest infestation and mold growth, improving the stability of stored grains. For wheat that does not achieve sufficient pest control through natural oxygen deficiency, chemical preservation is often the most suitable option. The application method involves wrapping the tablets in gauze and placing them directly into the grain heap. This method is ideal for long-term storage, with aluminum phosphide typically used at a rate of 3–5 grams per ton, costing approximately 1 yuan per ton.