Nursery soil disinfection three methods
Bordeaux liquid disinfection method: per square meter nursery with the same type (copper sulfate: lime: water ratio 1: 1:100) Bordeaux mixture 2.5 kg, plus 10 grams of sparse sprinkler soil, until the soil can be slightly dry. This method is effective for controlling black spot, gray mold, rust, brown spot, and anthrax. Carbendazim disinfecting method: Carbendazim can prevent and cure a variety of fungal diseases. The control effect against Ascomycetes and Deuteromycetes is very obvious. With 50% wettable powder, 1.5 grams per square meter nursery can control root rot, stalk rot, leaf blight, gray spot disease, etc., can also be formulated as 1:20 ratio of toxic soil sprinkled on the bed Can effectively control seedling disease. Daisin ammonium disinfection method: Daisin ammonium is an organic sulfur fungicide, strong bactericidal, can penetrate into the plant, after the decomposition of the plant still has a certain fertilizer effect. Use 30% 50% of Johnson's Ammonium for 3 kg of diluted solution per square meter of nursery. This method can prevent flower black spot, downy mildew, powdery mildew, blight, and can effectively prevent various diseases of bulbous bulbs.