(2) Direct application: After the grass ash is ground, it is sprinkled on the pests in the morning when the dew is not dry, and the plant ash is 1 to 2 kg per mu.
(3) Spraying ash liquid: First, soak 3 kg of grass ash and water for 10 kg for 3 days, spray ash after filtering residue, and spray 50 kg per mu. The second is the tobacco pest control method. Weigh the grass and water in a ratio of 1:40. First, shred the tobacco leaves, soak them in boiling water and cover them. When the water temperature drops to about 20 degrees Celsius, pour the soaked leaves until they are not thick. Tobacco leaves are placed in another basin of water and simmered for 40 times. The filter residue is used to remove the tobacco leaves, and the tobacco juices are all mixed for use in field pest control. The spray volume per acre is about 50 kg.
Huaxian Agricultural Technology Center Luo Junying
Pollution-free vegetable grass ash insecticidal method
(1) Soil application: 30 to 40 kilograms of grass ash per acre, preferably applied to the planting ditch, and then covered with soil after sowing or planting, which can control root-based pests.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】