Cereal-legume intercropping can increase yields, reduce fertilizer input and improve soil quality compared with pure culture. Designing intercropping systems requires the integration of plant species trait selection with choice of crop configuration and management. Crop growth models can facilitate the understanding and prediction of the interactions between plant traits, crop configuration and management. However, currently no existing crop growth model has been calibrated and tested for cereal-legume intercrops throughout Europea. We calibrated the Agricultural Production Systems sIMulator (APSIM) for pure cultures of wheat and faba bean using data from Dutch field trials, and determined the phenological parameters to simulate pure cultures and intercrops from seven field experiments across Europe. APSIM successfully reproduced aboveground dry matters and, for wheat only, grain yields in pure cultures. In intercrops, APSIM systematically overestimated the aboveground dry matter and grain yield of faba bean and underestimated those of wheat. APSIM was reasonably capable of simulating plant heights in pure cultures, but respectively overestimated and underestimated the height of faba bean and wheat in intercrops. In order to simulate wheat-faba bean intercrops better, APSIM should be improved regarding the calculation of biomass partitioning to grains in faba bean and of height growth in both species.

与纯栽培相比，谷物-豆类间作可以增加产量，减少肥料用量并改善土壤质量。间作系统的设计要求将植物品种性状选择与作物配置和管理的选择结合起来。作物生长模型可以促进对植物性状，作物结构和管理之间相互作用的理解和预测。但是，目前在整个欧洲，尚没有针对谷物-豆类间作进行校准和测试的现有作物生长模型。我们使用荷兰田间试验的数据对小麦和蚕豆的纯培养物的农业生产系统仿真器（APSIM）进行了校准，并确定了从欧洲七个田间试验中模拟纯培养物和间作的物候参数。APSIM成功地复制了地上的干物质，并且仅对小麦而言，纯种的谷物产量很高。在农作物间，APSIM系统地高估了蚕豆的地上干物质和谷物产量，而低估了小麦的产量。APSIM有能力模拟纯种栽培中的植物高度，但分别高估和低估了间作中的蚕豆和小麦的高度。为了更好地模拟小麦-蚕豆间作，应改进APSIM，以计算蚕豆中颗粒对生物量的分配以及两个物种的高度增长。APSIM有能力模拟纯种栽培中的植物高度，但分别高估和低估了间作中的蚕豆和小麦的高度。为了更好地模拟小麦-蚕豆间作，应改进APSIM，以计算蚕豆中颗粒对生物量的分配以及两个物种的高度增长。APSIM有能力模拟纯种栽培中的植物高度，但分别高估和低估了间作中的蚕豆和小麦的高度。为了更好地模拟小麦-蚕豆间作，应改进APSIM，以计算蚕豆中颗粒对生物量的分配以及两个物种的高度增长。