Three good ways to store new wheat
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1. There are three main heat-tight methods used for wheat preservation: wheat heat treatment, cylinder heat treatment, and material heat treatment. It is best to perform these processes on sunny and hot days. After thawing the cement field around 9 a.m., spread the wheat evenly onto the drying area with a thickness of about 1 cm. Then cover the wheat with materials such as quilts, blankets, or old sacks and move it outside to dry. Before starting, spray the area with dichlorvos or phosphorus-based pesticides to disinfect and control pests. The wheat must be turned over at least once every hour using a mallet to ensure the temperature of the husk reaches 46–50°C and the moisture content drops below 12.5%. By around 3 p.m., gather the wheat into a pile and let it remain hot and humid for about half an hour. Then cover the pile with sterilized materials, seal the cylinder tightly with plastic film, and secure it with ropes to prevent any air leakage. The internal temperature should reach above 40°C and remain so for 8–10 days, which effectively kills eggs, larvae, and adult insects, achieving a strong insecticidal effect.
2. The hypoxic storage method involves using the natural respiration of wheat and pests to reduce oxygen levels inside the sealed cylinder. Wheat has a long ripening period and high grain temperature during the initial stage, which supports vigorous respiration. As the wheat and pests consume oxygen, the oxygen concentration in the cylinder gradually decreases, reaching 2–5% within 5–10 days, while carbon dioxide levels rise to 40–50%. This environment suffocates pests over time. However, it's important to ensure that the moisture content of the wheat remains below 12.5% and the average grain temperature stays above 30°C to maintain effectiveness and avoid mold growth.
3. Chemical preservation is another effective method for storing wheat in well-sealed cylinders. This can be done using aluminum phosphide tablets or low-oxygen, low-dose treatments. It helps prevent pest infestation and mold growth, improving the overall stability of stored grain. For wheat that doesn't achieve sufficient pest control through natural oxygen deficiency, chemical preservation is often the most suitable option. The method involves wrapping the tablets in gauze and placing them directly into the grain pile. This technique is ideal for long-term storage, with a typical dosage of 3–5 grams per ton of wheat. The cost is approximately 1 yuan per ton, making it a cost-effective solution for large-scale storage.