Find an open space, choose a sunny day, spread the soil on the ground and expose it to the hot sun for 3-7 days. Take care to turn the soil frequently so that it is fully exposed to light and thoroughly exposed. Exposure sterilization is the easiest method and is suitable for flower lovers who do not require much soil sterilization, especially in summer. Turning the soil in the sun will kill most pathogenic bacteria and insect eggs.
Soil Sterilization - Scalding by Soaking
Flower lovers who have the means to do so can put the soil in a large pot and pour boiling hot water over the soil, stirring with a wooden stick as you do so, and then strain the water after 10 minutes and pour hot water over it again. After scalding several times, seal the pot tightly with plastic wrap and place it in the hot sun or under a hot south terrace. After a day, strain off the water and dry the soil in the sun. Sterilization is better than exposure alone.
Soil Sterilization - Fire Frying
If there is a small amount of soil outside, we can build a makeshift fireplace out of bricks, find a discarded iron pot, put firewood in the bottom of the pot, and fill the pot with soil. Light the firewood and stir-fry the soil for 30 minutes in an iron pot of 120 or more to sterilize the soil and kill all harmful pests and diseases with excellent results.
Soil disinfection - microwave
Find a plastic bag to put the soil in, spray less water slightly wet the soil, the plastic bag do not tie tight, loose to leave a ventilation hole, high heat to play 3 minutes, turn the soil to play 2 minutes. Digging the soil to pay attention to the microwave, heating time can not be too long, otherwise it will destroy the nutrients in the soil, and do not tie the bag tightly, but also spray water, or easy to blow up the stove ~
Soil disinfection - steam
Steam disinfection of equipment and facilities requirements are relatively high, the production of such a method of cost is too high, the cost is too high. But it is still practical if you have a scrap iron pot at home. When steaming the soil, add water to the bottom of the pot, put a cloth on the top steamer, put the soil on the steamer, cover the pot tightly, 100-120 steam for 40 minutes, then turn off the heat and steam for another 20 minutes.
Soil disinfection - pharmaceutical
Chemical disinfection is simple to operate, suitable for small family areas. Commonly used agents are formalin, carbendazim or zinc daisen, the dosage is subject to the instructions. Find a large plastic bucket or plastic bag, put the soil in it, pour the medicine, tie the bag tightly, open the bag after two days, and turn it over in the sunshine for 7~10 days to let the medicine evaporate before planting flowers.