Composition containing chitosan and paclobutrazol and application

The invention belongs to the field of plant growth regulators, and relates to an agricultural composition containing chitosan and paclobutrazol, the relative molecular mass of chitosan is 5000-20000 Daltons, and the mass part ratio of chitosan to paclobutrazol in the composition is 1:60 to 10:1. The composition also contains an acidic substance, and the use amount of the acidic substance accountsfor 1-10% of the total mass of the composition. The composition applied to crops such as mangoes, litchis, longan and apples in terms of a 50-800 ppm spray has an obvious flower forcing effect. 本发明属于植物生长调节剂领域，涉及一种含几丁聚糖和多效唑的农用组合物，几丁聚糖的相对分子质量为0.5万道尔顿～2万道尔顿，组合物中几丁聚糖和多效唑的质量份数比为1:60-10:1，组合物中还含有酸性物质，酸性物质用量占组合物的总质量为1-10％，组合物以50-800ppm喷雾应用对芒果、荔枝、龙眼、苹果等作物有明显的催花效果。