Volume 3,Issue 7
土壤中N、P、K 的转换机理
当今农业生产中使用化学肥料以成为常态，其主要目的在于补充因种植作物引起的土壤养分的缺失。肥料中以N、P、K为主要所需元素，这三种元素也是作物所需的三种主要营养元素。虽然N、P、K在土壤中含量丰富，但大部分以不可被利用的形态存在于土壤当中，可被利用的形态含量甚低，因此导致了连续种植作物后的土壤肥力严重下降。本文阐述了，三种元素在土壤中的存在形态及其可被利用的存在形式及相互间的转换机理。
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