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由中国农业科学院农业气象研究室研制成功的新型成膜物质京2B,用于植物能抑制蒸腾,提高体温,保持水分,增强抗性,对植物正常生长发育有良好作用,近期用于防治植物病害取得新的成效。京2 B 为非杀菌剂,特别具有无毒的特点。喷在植物表面形成一层肉眼几乎看不见的薄膜,使空气中的水气、氧气不能直接与植株表面接触,但并不封闭气孔,CO_2和水气仍可自
By the Chinese Academy of Agricultural Sciences Institute of Agricultural Meteorology successfully developed a new film-forming material Beijing 2B, for plants can inhibit transpiration, increase body temperature, maintain moisture and enhance resistance to plant a normal growth and development have a good effect, the recent for the control of plant diseases Achieve new results. Beijing 2 B non-germicide, especially with non-toxic characteristics. Spray on the plant surface to form a layer of almost invisible thin film of the naked eye, so that the water vapor in the air, oxygen can not directly contact with the plant surface, but does not close the pores, CO_2 and moisture still available from