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施钾对茶树的效应大小主要取决于主导土壤中钾素的状态,土壤满足不同年龄、不同生长势、不同产量的茶树对钾素需要的能力。 无论土壤本身含有的钾还是外施的钾,其持续效力决定于土壤的理化特性(Schroeder1974;Van Diest,1978)。一般地,土壤中K~+的动态可表示如下: 非交换性K~+交换性钾土壤溶液中的K~+植物体中的K~+。 上面的动态图表明:土壤溶液中的K~+与土壤固态K~+的反映是可逆的,这说明土壤矿质既是K~+源,又是K~+库。至于矿质,将K~+保
The effect of K application on tea tree mainly depends on the state of K in the dominant soil. The soil can meet the needs of tea plants of different ages, growth potentials and different yields. Regardless of the soil itself contains potassium or potassium applied, its persistence depends on the physical and chemical properties of the soil (Schroeder 1974; Van Diest 1978). In general, K ~ + dynamics in soil can be expressed as follows: K ~ + in K ~ + plants in non-exchangeable K ~ + exchangeable potassium soil solution. The above dynamic diagram shows that: K + in soil solution and soil solid state K ~ + is reversible, indicating that the soil mineral is both K + source and K + reservoir. As for the mineral, K ~ + Paul