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: 我的温室长60米,宽6.7米,空间体积为720立方米,共分17间,番茄开花后15天开始施放二氧化碳。 The use of carbon dioxide in the greenhouse to grow tomatoes so that the concentration of carbon dioxide is maintained at 1000-1500 × 10 -6 can effectively inhibit and alleviate the tomato leaf fern virus disease and increase the indoor temperature by 1 to 2.5 ° C. Tomato roots developed, lush foliage, fruit increases, 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: My greenhouse is 60 meters long and 6.7 meters wide, the volume of space is 720 cubic meters, is divided into 17, 15 days after flowering tomato begins to cast carbon dioxide.