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生产实践和试验研究表明,氮肥品种不同,增产效果是不一样的,对大多数低丘红黄壤茶园来说,氮肥的增产效果以硫酸铵为最
Production practices and experimental studies have shown that different varieties of nitrogen fertilizer, the yield is not the same, for most of the hilly red and yellow tea plantations, nitrogenous fertilizer production to ammonium sulfate is the most