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为了防止番茄落花、落果,可以采用施防落素(番茄灵)的方法。施用中应注意以下四点: 一、掌握药剂性质。2,4—D和防落素相比,2,4—D药效快,保花保果效果好,但浓度较难掌握,易产生畸形果;防落素较安全,不易产生畸形果,但药效较慢。 二、施用时期要准确。蘸花时以花顶见黄未完全开放或花呈喇叭口状时最好。但一般认为,从开
In order to prevent the fall of tomato, drop fruit, you can use the method of applying phlegm (tomato Ling). Application should pay attention to the following four points: First, grasp the nature of the drug. 2,4-D compared with the anti-tetanus, 2,4-D fast-acting, Paul flower and fruit protection effect is good, but the concentration is difficult to grasp, easy to produce deformities; snail is safe, not easy to produce deformities, But the efficacy is slower. Second, the application period should be accurate. When dipped in flowers to see the ceiling is not fully open or flower was the best bell mouth. But generally believed that from the open