The chemical reaction method uses carbonic acid and strong acid to react to produce carbon dioxide, so that the protective carbon dioxide can reach a suitable concentration. In production, it is generally reacted with dilute sulfuric acid and ammonium hydrogencarbonate to form ammonium sulfate, water and carbon dioxide. The specific method is to take 10 to 20 points per acre shed, digging a pit of 30 cm in diameter and 20 cm in depth at each point, or hanging a discarded plastic bottle or bowl with a rope about 1 m from the ground. The air. In order to prevent the foam generated by the reaction of ammonium bicarbonate from adding sulfuric acid, and hurt the stems and leaves of the operator and celery, use an acid-resistant basin or an open plastic bucket, first put 3 parts of water, then 1 part of thick The sulfuric acid is slowly added to the clean water along the wall, and the mixture is continuously stirred and cooled for use.
The liquid carbon dioxide is applied to compress the carbon dioxide gas into a cylinder and directly placed in the protective land for application. Generally, there are two parallel vent pipes in the protection ground, one is about 80 cm from the ground, one is 10-20 cm from the roof, and a hole of 0.3 cm in diameter is made every 60 cm on the pipe. Deflate once at 11:30, and add about 2 kg of carbon dioxide. The container may be charged with sulfuric acid for 3 days in a single reaction, and ammonium hydrogencarbonate may be added thereto in an amount as needed every day. The amount of sulfuric acid placed at each point can be determined according to the control area. Add ammonium bicarbonate half an hour after sunrise every day, stir while stirring, and then seal the protective ground for 2 hours before releasing the air.
Author: Lin Source: Daily farmer
The liquid carbon dioxide is applied to compress the carbon dioxide gas into a cylinder and directly placed in the protective land for application. Generally, there are two parallel vent pipes in the protection ground, one is about 80 cm from the ground, one is 10-20 cm from the roof, and a hole of 0.3 cm in diameter is made every 60 cm on the pipe. Deflate once at 11:30, and add about 2 kg of carbon dioxide. The container may be charged with sulfuric acid for 3 days in a single reaction, and ammonium hydrogencarbonate may be added thereto in an amount as needed every day. The amount of sulfuric acid placed at each point can be determined according to the control area. Add ammonium bicarbonate half an hour after sunrise every day, stir while stirring, and then seal the protective ground for 2 hours before releasing the air.
Author: Lin Source: Daily farmer
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