潜在肥力,是指耕作土壤中不能被作物直接利用或在农业生产上没有直接表现出来的那部分肥力。例如,土壤养分中只有很少一部分是有效养分,能被当季作物吸收利用,绝大部分都是潜在肥力。
缓效养分,是土壤潜在肥力的重要来源。
土壤类型丰富,适宜农、牧、林各类生产,潜在肥力较高。
Range of soil types suitable for agriculture, animal husbandry, forestry various types of production, higher potential fertility.
分析数据表明,该区旱地土壤潜在肥力较低,有机质含量差异较大,大部分土壤氮、磷、钾养分供应不足。
The analytical data revealed that the potential fertility of the dryland soils was rather low, such as nitrogen, phosphorus and potassium content in soil were deficient on the whole.
应用推荐