水稻塑料软盘育秧抛秧栽培技术以其省工省力、操作简便和增产增收等优点深受群众欢迎。但在育秧过程中出现的横串根盘缠(下简称串根)问题较为突出,严重地影响抛秧水稻的推广。串根现象是塑盘营养土穴与穴之间秧苗根系互相纠缠在一起,使之不能成为独立的个体在起秧后均匀地抛栽? Rice plastic floppy seedling throwing seedling cultivation techniques with its labor-saving, easy to operate and increase production and income advantages by the masses welcome. However, during the process of raising seedlings, the problem of transverse skein (hereinafter referred to as skeletal root) entanglement is prominent, which seriously affects the popularization of cast-seed rice. The phenomenon of string root is plastic plate nutrition soil hole and hole between the roots of the seedlings entangled with each other, so that it can not become an independent individual after throwing seedlings throwing planted?