Nitrogen requirements for cereal crops

To test the applicability of the South Australian 'Slide rule' type of arrangement whereby nitrogen requirement of a cereal crop can be quickly estimated before sowing in the Victorian southern Mallee and northern Wimmera.

为检验南澳大利亚“计算尺（Slide rule）式”氮肥需求估算方案的适用性，该方案可在维多利亚州南部马利（Mallee）地区与北部威默拉（Wimmera）地区的谷类作物播种前快速估算其氮肥需求量。