Control of pests and diseases in open field management of Agaricus bisporus

(1) Pre-winter management. When the mycelium has a large area of ​​half of the earth, we must keep the soil moist. When the mycelium grows to 4/5 of the soil, the mushrooms are splashed with water, making the surface of the soil bright and seeping into the soil 1/5. When the size of the rice bud is large, the water is sprayed to make the surface of the soil bright but the water does not infiltrate. After 5 to 10 minutes, the straw is covered. The day-to-day management is sunny and multi-spraying, with less spraying on cloudy days, more spray on mushrooms, less spray on mushrooms, and no spray on changing tides. The sprayer sprayed water at 45 degrees upwards, avoiding direct spray of mushroom buds, spraying at high temperatures and spraying at noon at low temperatures. When the water is sprayed, the straw curtain is opened and the soil is dried after it is dried. When the temperature is high, only the curtain is not covered with a film, no wind can open the curtain in the evening, and the temperature drops in time for film insulation.

(2) Winter management. As the temperature dropped to 5°C, the mycelium stopped growing and entered the winter management stage. To cover the agricultural film, straw and compaction with clods, sunny ventilation at noon the next day, avoid long-term airtight. Keeping the soil layer white during winter, the mycelium does not dry. The bed mycelium develops well for the winter, does not spray water, and the development of the mycelium is poor. It is necessary to spray water once a week at noon. Before the end of February, scrape the fine soil, loosen the coarse soil to breathe, remove the old roots and yellow mycelium, make up for the new soil, add 0.1% to 0.2% urea solution per mu to add water and nutrients.

(3) Spring management. When the temperature rises in early March, spray 0.1% to 0.2% urea to soften the soil, and delay the proper growth of mycelia. Do not get too dry or too wet in the spring, ventilate during the day, and ventilate at night.

If pest control is not repeated, the disease will generally be less. Attention to management will basically prevent physiological diseases. The use of highly toxic and high-residue pesticides is prohibited, and it is really necessary to apply pesticides. Aviccillin is used for acarids, lime powder is used for snails, and dimethoate is used for control of earthworms.

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