多效唑培育油菜壮苗好得很多效唑是一种植物生长延缓物质。几年来用于油菜育苗收效甚佳。多效唑对油菜作用：油菜秧苗喷施多效唑后延缓了前期的生长，打好了壮苗的基础，促进了后期的生长。表现出叶片数和绿叶数增多，叶色深绿，叶柄变短，根茎粗壮，根系发达，植株含糖量... Paclobutrazol is a good plant growth retarding material. Over the years for rapeseed nursery success is very good. Paclobutrazol on rapeseed: rapeseed sprayed paclobutrazol postponed the growth of the early stage, lay a strong foundation for seedlings and promote the growth of the late. Show the number of leaves and the number of green leaves increased, leaves dark green, petiole shorter, stout roots, developed root system, sugar content ...