为了建立优质、高产一年生混播饲草基地,确定河南县燕麦和箭筈豌豆最佳混播比例,试验通过对不同混播比例下牧草株高、产量、土地当量比及营养成分等指标进行比较分析,并采用灰色关联度分析法进行综合评价。结果表明:混播牧草产量及资源利用效率显著高于单播(P〈0.05)且燕麦:箭豆(8:2)混播比例下的牧草株高、鲜重及干重产量为最大值,其次为燕麦:箭豆(7:3)混播处理;同时随着箭筈豌豆播量的增加,牧草粗蛋白的含量呈逐渐增加趋势;利用灰色关联度分析法综合评价结果显示河南县燕麦和箭筈豌豆最佳混播比例为燕麦:箭豆(7:3)。
In order to establish a high quality, high yield and annual mixed seeding forage grass fields, and determine the best mix proportion of oat and common vetch mixture ratio in Henan county, forage plant height, yield, land equivalent ratio, nutrients and other indicators under the different proportion of mixed seeding were compared and analyzed, and using grey correlation analysis method for comprehensive evaluation. The results showed that mixed seeding herbage yield and resource using efficiency is significantly higher than in single seeding (P〈0.05), and forage plant height, fresh weight and dry weight reach maximum under the mixed proportion of oat and common vetch (8:2), followed by the mixed proportion of oat and common vetch is7:3. With the increment of the common vetch proportion, protein content tent to increasing gradually. Comprehensive evaluation by using the grey correlation analysis showed that the best mixed seed- ing ratio of oat and common vetch is 7:3 in Henan County.