肥水是含有相当量硝态氮的浅层地下水。一般不含亚硝态氮,铵态氮,几乎不含磷,含钾也很少,同时含有一定量的易溶性盐类,酸碱度通常为7至8,即在中性或微碱性范围内。肥水透明,无色,无臭,味苦,燥,涩,咸,所以有的地方称为苦水,赖水,油水。 Fertilizer water is a shallow groundwater containing a considerable amount of nitrate nitrogen. Generally does not contain nitrite, ammonium nitrogen, almost no phosphorus, potassium is also very small, also contains a certain amount of soluble salts, pH is usually 7 to 8, that is, in the neutral or slightly alkaline range . Fertilizer water is transparent, colorless, odorless, bitter, dry, astringent, salty, so in some places called hard water, water, oil and water.