土壤的酸碱反应对于土壤肥力及作物的生长发育都有很大的影响。作物所需要的各种元素,包括氮、磷、钾等大量元素以及硼、锌、钼等微量元素的有效性,都因土壤酸碱反应的强弱而不同。土壤微生物的活动也要求一定的酸碱反应范围,酸性或碱性过强均不利于土壤有益微生物的活动。不同 Soil acid-base reaction has a great impact on soil fertility and crop growth and development. The various elements required for crops, including nitrogen, phosphorus, potassium and other large elements as well as the effectiveness of trace elements such as boron, zinc, molybdenum, are due to the strength of the soil acid-base reaction varies. Soil microbial activities also require a certain range of acid-base reaction, acid or alkaline are not conducive to soil beneficial microorganisms activity. different