The key to high yield topdressing of mushrooms is to prepare the liquid of topdressing of mushrooms by four methods.

Proper topdressing is the key to high yield of mushroom. This paper introduces the preparation methods of several kinds of mushroom topdressing solution.

1. Mushroom root soup. Wash the mushroom feet and crushed mushrooms cut off during harvesting and processing, cut into thin slices, add 1-1.5 kg of water per kilogram, boil for 15 minutes, take filter juice and dilute to 10-15 kg, spray mushroom bed 30-40 square meters. When used in the peak period of mushroom production, the mushroom fruiting body can be thickened and the peak period of mushroom production can be prolonged.

2. Cow urine. Take fresh bovine urine, boil until the foam disappears, add water 7-8 times dilution, spray every 2-3 days, spray wet bed as the degree. If there are small mushrooms on the bed, spray them with clean water again after spraying, which can promote the growth of small mushrooms.

3. Soybean milk. Take 2 kilograms of soybeans, add water to soften and grind into pulp, filter out the residue and add 80-100 kilograms of water. The mushroom bed can be sprayed with 80-100 square meters, which can promote the growth of mushrooms.

4 、 Fresh Carrot Juice . Take 10 kilograms of carrots, add 15 kilograms of water and boil for 15 minutes, filter the juice, add 40 times of water, spray bacteria bed.