Fourth, the application of carbon dioxide fertilizer matters needing attention
1. When using carbon dioxide generator and simple device, it should be noted that concentrated sulfuric acid should be slowly injected into the water when diluting concentrated sulfuric acid. Never pour water into concentrated sulfuric acid to avoid violent reaction caused by sulfuric acid splash.
2. The application of carbon dioxide gas fertilizer cannot be suddenly interrupted. The application concentration should be reduced day by day several days before the grape fruit harvesting period, until the application is stopped to prevent premature senescence of the plant.
3. The application of carbon dioxide gas fertilizer should be combined with other management measures. At the same time, the application of carbon dioxide gas fertilizer should increase the application of phosphorus and potassium fertilizer, and appropriately increase the air humidity and soil moisture in the facility. In the temperature management, pay attention to the indoor temperature during the day is 2 ° C ~ 3 ° C higher than the carbon dioxide gas fertilizer, and 1 ° C ~ 2 ° C lower at night to prevent the plant length.