Data from the winter wheat potential yield experiment in New Zealand and response to variable sowing dates and densities: field experiments and AgMIP-Wheat multi-model simulations

The dataset contains 6 growing seasons of a local winter wheat cultivar ‘Wakanui’ at two farms located in the Canterbury Region of New Zealand. The data of the experiment was used in the AgMIP-Wheat Phase 4 project to evaluate the performance of an ensemble of 29 crop models to predict the effect of changing sowing dates and rates on yield and yield components, in a high-yielding environment. The treatments were managed for non-stress conditions. Data include local daily weather, soil characteristics and initial soil N conditions, crop measurements (anthesis and maturity dates, total above-ground biomass, final grain yield, and yield components), and cultivar information. Simulations include both daily in-season and end-of-season results from 29 wheat crop models.

本数据集涵盖新西兰坎特伯雷地区（Canterbury Region）两家农场的本地冬小麦品种‘Wakanui’的6个生长季观测数据。该实验数据曾用于AgMIP-Wheat第四阶段项目，以评估由29个作物模型构成的集成模型集在高产环境下，预测播期与播量变化对产量及产量构成因素影响的性能。试验处理均设置为无胁迫生长条件。数据集包含本地逐日气象数据、土壤特性与初始土壤氮素状况、作物观测数据（包括扬花期、成熟期、地上总生物量、最终籽粒产量及产量构成因素）以及品种相关信息。模拟数据则包含29个小麦作物模型生成的生育期内逐日结果与季末最终结果。