继1983年联合试验,用胶体和乳剂两种剂型的三十烷醇,对大豆二层复叶展开期和开花末期,进行叶面喷洒处理试验。结果胶体分散剂参试的六个浓度,对幼苗株高的生长没有生理活性,高浓度下对根干重有生理活性存在的可能。开花末期喷施三十烷醇,两种剂型都没有增产效果。 Following the joint test in 1983, two types of colloidal and emulsion triacontanol were used to test the foliar spraying treatment on the development and the flowering of the compound leaf of soybean. Results Six concentrations of colloidal dispersant tested showed no physiological activity on the growth of seedling height and physiological activity of root dry weight at high concentration. Triacontanol was sprayed at the end of the flowering period, and neither of the two dosage forms did increase the yield.