Root rot first open the roots of the roots of the fruit trees, exposing the roots and then scraping the roots with a knife to remove the diseased skin. After drying the roots for 2 to 3 hours, the fresh grasses and ashes are smashed around the roots, and finally the roots can be buried. After being treated, the diseased roots can be cured within 1 to 2 months, and new roots can be grown, so that the growth and development of fruit trees can be restored to normal. Ash is alkaline and cannot be used in saline-alkali soil.
After the fruit of the downy mildew enters into the expansion period, it is applied on the ground to apply the plant ash or ditching in the tree tray. It is also possible to use 4% of the ash leaching solution for foliar spraying.
Early defoliation disease uses 8 kilograms of wood ash to soak water for 100 kilograms for 48 hours to filter into leachate. This mixture is sprayed with fungicide to prevent and control early apple larvae disease. When spraying foliar ash to the foliage, use a soaked clear solution to prevent the leaves from being contaminated.
Rust on diseased apple trees, dig 50 cm wide and 60 cm deep at 50 cm from the root diameter, and then apply ash to the ditch as a basal fertilizer, pour enough water and pressurize it. The new soil can be.
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