Service Agricultural Extension

The Agricultural Extension Service at the University of Tennessee says growers should do this every year after harvest.

田纳西大学农业进修服务部的专家建议在每年收获完果实之后进行一次修整。

Alongside with the evolution of agricultural, industrial and knowledge economy, the nature and extension of labor are changing, scientific, management and service laboring all create values.

随着农业社会、工业社会和知识社会的演进，劳动的内涵和外延都有变化，科技劳动、管理劳动和服务劳动都创造价值。

This Agricultural Extension Service helped make American farms the most productive in the world.

这项农业推广服务让美国成为世界上生产力最强的国家。