Carbon dioxide fertilizer

Carbon dioxide (CO) is the constituent of air and is the raw material for photosynthesis. The suitable concentration of carbon dioxide in greenhouse vegetables is generally not less than 800-1000mg/L, but carbon dioxide is often lacking in a closed greenhouse where the light is sufficient and the crop is prosperous; when the concentration is lower than 80-10mg/L, the normal growth of vegetables will be severely restricted. . In this case, in addition to proper ventilation, proper close planting, organic fertilizer application, and scientific application of nitrogen fertilizer, it is often necessary to use carbon dioxide as a fertilizer. This is carbon dioxide fertilizer, also called gas fertilizer.

In greenhouses or greenhouses, chemical methods, biological methods such as straw bioreactor technology can be used to generate carbon dioxide or apply carbon dioxide fertilizers to correct carbon deficiency. Here's a simple chemical method to generate carbon dioxide: Prepare a number of plastic buckets and suspend them 100 cm from the ground. Add dilute sulfuric acid (sulfuric acid is slowly added to water in the ratio of concentrated sulfuric acid and water = 1:3). Divided into several portions with ammonium bicarbonate, one for each barrel, first for dilute sulfuric acid and then for ammonium bicarbonate, and the two interact to produce CO2. This method is simple and effective, but it must pay attention to safe operation.

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