土壤养分图是反映土壤养分丰缺程度和分布状况,用以指导施肥,特别是合理分配施用化肥的依据。一、土壤养分图编制要求1、充分反映土壤养分含量水平及其分布状况。2、充分反映土壤养分状况与需肥情况和肥效反应的关系,以便指导因土施肥。3、既要反映土壤养分含量的差异性,分布的复杂性,又要反映其 Soil nutrient map is to reflect the abundance and shortage of soil nutrients and distribution, to guide fertilization, especially the rational allocation of fertilizer basis. First, the preparation of soil nutrient map requirements 1, fully reflect the level of soil nutrient content and distribution. 2, fully reflect the relationship between soil nutrient status and fertilizer needs and fertilizer response, in order to guide soil fertilization. 3, it is necessary to reflect the diversity of soil nutrient content, the complexity of the distribution, but also to reflect it