【摘要】 在冀西北地区,通过研究青贮玉米与扁豆不同混播种植密度(青贮玉米∶扁豆设密度比1∶1、2∶1、3∶1)对混播饲草生物产量和营养成分的影响,筛选出了适合该地区的较优混播栽培模式。结果表明:青贮玉米和扁豆混播比例2∶1为最佳模式,在该模式下饲草的产量和品质均可达到最佳水平,混播饲草产量最高,比对照增产11.6%,粗蛋白含量得到明显增加,高出2.49个百分点。青贮玉米与扁豆混播技术简单,收益明显,必定会成为青贮玉米种植的一种新模式,在该地区奶牛粗饲料品质改良中发挥重要作用,具有非常广阔的推广前景。更多还原

【Abstract】 Optimal cultivation modes on mixed planting of silage maize and lentils were screened through the effects of different cultivation density ratios(1∶1,2∶1,3∶1)on the yield and nutrient of forage grass in northwestern Hebei Province.The results showed that silage maize and lentils mixing planting with density ratio 2∶1was the best model,and the yield and quality of forage grass achieved the best level.The yield was 11.6% higher than that of the control,and the crude protein content 2.49% higher.Silage maize and lentils mixing planting technology is simple and brings dramatic bemefit.It has played an important role in quality improvement of cow roughage in this area.And it has a wide prospect of promotion as a new cultivation model.更多还原