据报道,在种植番茄的日光温室中施用二氧化碳,使二氧化碳的浓度维持在1000～1500×10~(-6),能有效地抑制和减轻番茄蕨叶病毒病,提高室内温度1～2.5℃,还能使番茄根系发达,枝叶茂盛,果实增大,一般能增产10％～50％。因此,1997年冬,我在种植番茄的日光温室中,施用了二氧化碳气肥,收到了良好的效果。具体操作方法如下: It has been reported that the application of carbon dioxide in a solar greenhouse where tomatoes are grown so that the concentration of carbon dioxide is maintained at 1000 to 1500 × 10 -6 can effectively inhibit and alleviate the tomato leaf fern virus disease and increase the indoor temperature by 1 to 2.5 ° C., Can also make tomato root system developed, lush foliage, fruit increased, generally can increase 10% to 50%. Therefore, in the winter of 1997, I applied carbon dioxide gas fertilizer to the greenhouse where tomatoes were planted and received good results. Specific methods of operation are as follows: