2，3－二氯异丁酸钠是一种较新的植物生长调节剂．本文按沈凤嘉等人的改进方法合成了该物质，所得产品的红外光谱图与标准图谱基本吻合．将2，3－二氯异丁酸钠配制成不同浓度的水溶液施用于水稻，发现该物质对水稻的产量有影响：既有增产作用，也有减产作用，与施用浓度有关． Sodium 2,3-dichloroisobutyrate is a relatively new plant growth regulator. This article by Shen Fengjia and others improved the method of synthesis of the material, the resulting product of the infrared spectra and the standard map basically match. The sodium 2,3-dichloroisobutyrate was formulated into different concentrations of aqueous solution applied to rice and found that the substance has an impact on rice yield: both increasing production, but also yield reduction, and the application concentration.