棉花营养钵育苗苗床管理的核心是合理调控床内的温度与湿度,促进棉苗快生健长,形成壮苗,为早发丰产打下良好的基础。总结多年的育苗实践与经验,培育棉花壮苗的技术措施可归纳为“四促四防”。 Cotton nutrition Bowl seedling nursery bed management is the core of a reasonable regulation of bed temperature and humidity, promote cotton quick growth and health, the formation of strong seedlings, lay a good foundation for early fattening. Summary of many years of nursery practice and experience, nurturing cotton seedling technical measures can be summarized as “four promote four defenses.”