Soil properties Fertiliser requirements

The Map Soil Properties Fertiliser Need is an evaluation of the digital soil map 1:50.000. It is created specifically for the estimation of soil properties for the purpose of entering into the accounting and recommendation system fertilisation BESyD. It contains the following attributes, based on a floor depth of 100 cm and denoted according to soil history mapping instructions (5th edition): lower depth of the horizon in meters (standard reference: 1 m), soil type, clay, silt, sand content (M.-%), soil species group, effective rooting depth We (dm) and skeletal content, abbreviation of the soil species according to soil estimation (BS), textual description of the soil species according to soil estimation, fine proportion (FA). The data can be used as an estimate at the field block level if there is no more precise information about field response or laboratory analysis.“土壤属性与肥料需求量数字地图”数据集是针对1:50000比例尺数字土壤地图开展的评估成果，专为估算土壤属性而构建，用于接入BESyD肥料核算与推荐系统。本数据集以100cm土层深度为基准，依据《土壤历史制图规范（第5版）》标注以下属性：以1米为标准参考的土层下界深度（单位：米）、土壤类型、黏粒、粉粒、砂粒含量（质量百分比）、土壤类群、有效扎根深度We（单位：分米）、石砾含量、基于土壤估算（BS）的土壤种类缩写、基于土壤估算的土壤种类文字描述、细粒占比（FA）。若无更为精准的田间响应数据或实验室分析结果，本数据集可用于田块尺度的土壤属性估算。