How to replenish carbon dioxide in the greenhouse
Timely and appropriate supplementary application of carbon dioxide is particularly important for the growth of vegetables. But sometimes it will cause the lack of carbon dioxide, and we need to supplement carbon dioxide, so how do I supplement the carbon dioxide in the greenhouse? Just a brief introduction to everyone.
1. Determine the appropriate supplementation concentration: 750 to 850 mg per liter for tomato, cucumber, zucchini, and pumpkin, and 550 to 750 mg per liter for eggplant, pepper, and strawberry. Generally, when the light is strong, the temperature is high, and the fertilizer and water are sufficient, the concentration should be higher, and it is advisable to take the upper limit of the suitable concentration of vegetables. On cloudy days or when the light is weak, the temperature is low, and the supply of fertilizer and water is insufficient, the concentration should be reduced, but it should not be lower than the lower limit of the suitable concentration of vegetables.
2. Select a reasonable supplementary method: For the protected land with a certain scale area, carbon dioxide gas fertilizer generators or carbon dioxide gas fertilizer granules should be used to facilitate easy and fast operation and control of dosage. For relatively small-scale protected areas, chemical reactions can be carried out with chemical raw materials (such as diluted industrial sulfuric acid and ammonium bicarbonate) in order to reduce production costs.
3. The seedling stage is the best time to supplement carbon dioxide. For fruit and vegetable vegetables, the effect of continuous supplementary application of carbon dioxide for 20 to 30 days from the flowering period to the fruit expansion period has a significant effect on improving early yield and product commerciality. In addition, the carbon dioxide supplementation time should be carried out immediately after the greenhouse sees light for 0.5 to 1.5 hours in the early morning (the specific length of time is affected by the type of vegetables, growth period, temperature in the greenhouse, light intensity and other factors), so that the facility can maintain high carbon dioxide levels. Before and after noon, the temperature in the greenhouse facilities increases, photosynthesis increases, and vegetables are prone to "carbon starvation", so carbon dioxide needs to be replenished in time.
4. Strengthen the management of fertilizer and water: Only on the basis that fertilizer and water can fully meet the needs of normal growth of vegetables, combined with the application of carbon dioxide gas fertilizer, can the effect of increasing vegetable production be more significant.
After reading the above introduction, I believe that everyone has a certain understanding. If you have any questions, welcome to inquire, we will serve you wholeheartedly.
