大麦与箭筈豌豆混播对饲草产量和品质的影响

The Effect of Mixed Sowing of Darley and Vetch on Forage Yield and Duality

为了探明大麦与箭筈豌豆混播对饲草产量和品质的影响,以饲用大麦、箭筈豌豆为试验材料,通过设置100%大麦单播、25%大麦+75%箭筈豌豆、50%大麦+50%箭筈豌豆、75%大麦+25%箭筈豌豆、100%箭筈豌豆单播5个处理,分析不同刈割期和混播比例对株高、饲草产量及营养品质的影响。结果表明,单播大麦与各混播处理在不同生育期的株高差异不显著(P>0.05)。不同混播处理和刈割期下,鲜、干草产量差异极显著(P<0.01),刈割期和混播比例对鲜、干草产量存在一定的协同作用(P<0.05)。在乳熟期刈割时,50%大麦+50%箭筈豌豆干草产量最大,达20117.89kg/hm^(2)。不同混播处理和刈割期下,各组粗蛋白含量、酸性洗涤纤维含量以及中性洗涤纤维含量差异极显著(P<0.01),刈割期和混播比例对粗蛋白含量、酸性洗涤纤维含量以及中性洗涤纤维含量存在一定的协同作用(P<0.01)。通过对各处理间株高、饲草产量及粗蛋白含量、刈割期的综合比较可知,50%大麦+50%箭筈豌豆的混播组合及乳熟期刈割在河套地区种植应用最为适宜。

In order to investigate the effects of mixed sowing of barley and vetch on forage yield and quality,using feeding barley vetch as the experimental material,five treatments were set up:100% barley single sowing,25% barley+75% vetch,50% barley+50%vetch,75% barley+25% vetch,and 100% vetch.The effects of different cutting periods and mixed sowing ratios on plant height,forage yield,and nutritional quality were analyzed.The results showed that there was no significant difference in plant height between single sowing barley A1 and various mixed sowing treatments at different growth stages(P>0.05).Under different mixed sowing treatments and cutting periods,the yield of fresh and dry grass was significantly different(P<0.01)in crude protein content,acidic detergent fiber,and neutral detergent fiber under different mixed sowing treatments and cutting periods.The cutting period and mixed sowing ratio had a certain synergistic effect on crude protein content,acidic detergent fiber,and neutral detergent fiber(P<0.01).Through a comprehensive comparison of plant height,forage yield,crude protein content,and cutting period among different treatments,the mixed planting combination of 50% barley and 50% vetch pea is most suitable for planting in the Hetao area during the milk ripening period.