春茶是一年中产量最高，质量最好，经济效益最明显的茶叶，通过实行“三改”技术能提高春季名优茶和高档茶产量、质量。一、改迟追肥为早追肥茶树在春季发芽前有70％-80％氮是贮存在根中，春茶在2月下旬施氮肥，利用率达17％以上，3月下旬施氮肥，利用率只有12．6％。因此要提 Spring tea is one of the highest yield, best quality, the most obvious economic benefits of tea, through the implementation of “three changes” technology can improve the spring of famous tea and high-grade tea production, quality. First, to change the top dressing for the early tea fertilizer 70% -80% nitrogen in the spring before germination is stored in the roots, spring tea in late February nitrogen fertilizer, the utilization rate of 17% or more, in late March nitrogen fertilizer, utilization Only 12.6%. So to mention