The following principles should be followed when applying carbon dioxide gas fertilizer to fruit vegetables in greenhouses.
1, fertilization period: fruits and vegetables should be in the fruit enlargement period, leafy vegetables should be applied after the establishment of slow seedlings.
2, fertilization time: after the curtain or after the sun rises 1 hour after the start of application, 1 hour before the end of the wind, in the afternoon, evening, when the wind does not have to use; release should be sunny and sunny in the light, the temperature above 15 °C, cloudy, snow It is not used when the temperature is lower than 15°C.
3. Because the volatile gas of sulfuric acid and ammonium bicarbonate is harmful to the crop, it should be released outside the greenhouse and then released in the greenhouse.
4. Add a little bit of ammonium bicarbonate to the reaction residue, and concentrate it into the container when there is no bubble generated. It can be used as Daejeong fertilizer or basal fertilizer in greenhouses. It can not be used as a fertilizer in greenhouses.
5. The amount of sulfuric acid and ammonium bicarbonate should be put according to different vegetables.
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