利用化学“杀雄剂2号”对水稻进行了不同药液浓度、不同品种(系)和不同叶枕距条件下的杀雄试验。结果表明:(1)“杀雄剂2号”对籼稻、粳稻及其中间类型的杀雄效果相近,适合化杀的品种范围广泛。(2)“杀雄剂2号”对水稻施药的有效期较长。(3)在当地生产条件下,施用0.05%浓度的药液对水稻可达到最佳的杀雄效果。 Using chemical “killing agent 2” on rice different liquid concentration, different varieties (lines) and different leaf pillow under the conditions of killing test. The results showed that: (1) Kao Xiongji No.2 had a similar killing effect on indica rice and japonica rice and its intermediate types, with a wide range of varieties suitable for killing. (2) “Kao Xiongjiu2” has a longer validity period for rice. (3) In the local production conditions, the application of 0.05% concentration of liquid rice can achieve the best killing effect.