Data for: Computing uncertainty for the optimum nitrogen rate using a generalized cost function

Maize grain yield response to nitrogen dataset, which includes dry grain yield for eight nitrogen rate treatments (0-235 kg ha-1) from Stewart, MN in 2012. There are a total of 32 observations across four replications. Nitrogen fertilizer was broadcast applied as urea and incorporated prior to planting. Total nitrogen uptake (grain, cob, and stover) at physiological maturity and total available nitrogen at planting (urea, ammonium, and nitrate) from 0 - 60 cm is also included.本数据集为玉米籽粒产量对施氮量的响应数据集，涵盖2012年于美国明尼苏达州斯图尔特（Stewart, MN）开展的8个施氮梯度处理（0~235 kg·ha⁻¹）的籽粒干重产量数据。该数据集共包含4次重复的32组观测值。试验中氮肥以尿素形式撒施，并于播种前翻耕混入土壤。此外，数据集还收录了作物生理成熟阶段的总氮素吸收量（涵盖籽粒、穗轴及秸秆），以及0~60 cm土层中播种时的有效总氮含量（包括尿素态氮、铵态氮与硝态氮）。