At present, it is generally accepted in the international community that the application of carbon dioxide concentration to 0.1% in a greenhouse can be applied to various crops. However, the concentration of carbon dioxide in Japan and the former Soviet Union and other countries is mostly 0.1%-0.2%. The Dutch scientist Stella's study found that when the concentration of carbon dioxide in tomatoes increased from 0.0335% to 3 times, the accumulation of dry matter was the most, and the net light rate was increased by 5%.
How to make carbon dioxide fertilizer is simply to dig a trench 30-40 centimeters wide and 20-30 centimeters deep and equal in length to each other under each planting ridge 10-15 days before the cultivation of greenhouse crops. The tank is filled with packed stalks. Four kilograms of “Micro-Wall†compound inoculum is sprinkled into the surface of the stalks per acre of shed, and the bactericide is gently patted with iron shovels to infiltrate the stalks into the stalks. Bury on the top of straw, then water in the ridge, the straw drenched, before planting the ridge leveling, after planting the peritoneum, retroperitoneal with 14 steel bars in the hole between the seedlings and seedlings, deep penetration through the straw is appropriate. This approach is referred to as the bioreactor. This bio-reactor production technology can increase greenhouse carbon dioxide by 4 to 6 times. It can also increase greenhouse temperature in winter vegetable greenhouses by 4 to 6°C, and greenhouse temperature by 2 to 3°C to save fertilizers and pesticides. Each 50%, an average increase of more than 30%.
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