Row spacing by variety by nitrogen demonstration in wheat

This demonstrations was conducted for three significant reasons.1. Assess the potential yield losses when increasing the seed row width for the benefits of subsequent inter-row (no-till) cropping;2. Determine if nitrogen application efficiency can be increased in wider row spacing scenarios by applying product either up front or in crop;3. Assess the varietal response to row spacing width to determine yield in response to nitrogen timing and row widths.本次试验出于三项重要目的：1. 评估为获取后续行间免耕种植的优势而增大播种行宽时，潜在的产量损失；2. 明确在宽行间距场景下，通过基肥施用或作物生长期追施氮素肥料，能否提升氮肥施用效率；3. 评估不同品种对行间距的响应特性，以此明确氮肥施用时机与行宽对产量的影响。