夏茶喷施稀土浓度的试验程昌键（重庆市万盛区农业局）稀土是一种具有生理活性的物质．能促芽早发、壮苗、提高产量、改进品质，近年已开始在茶叶生产上得到试验和推广应用，并有过一些报道，但在炎热的夏茶季节如何选择最佳的稀土浓度进行喷施尚无定论。重庆地区夏季高温... Summer tea spraying rare earth concentration test Chang Chang Jian (Chongqing Wansheng District Bureau of Agriculture) Rare earth is a kind of physiologically active substances. Can promote early buds, strong seedlings, improve yield, improve quality, in recent years has begun to test the production of tea and promote the use of, and there have been some reports, but in the hot summer tea season how to choose the best concentration of rare earth spray Shi is still inconclusive. Chongqing summer high temperature ...