图木舒克市不同播种比例紫花苜蓿与黑麦草的产量和营养品质探究

Yield and Nutritional Quality of Alfalfa and Ryegrass in Different Sowing Ratios in Tumushuk City

紫花苜蓿与黑麦草均为优质饲草。为探究图木舒克市紫花苜蓿与黑麦草最佳混播比例,对紫花苜蓿与黑麦草设置M_(5)+H_(5)(5:5)、M_(4)+H_(6)(4:6)、M_(3)+H_(7)(3:7)、M_(6)+H_(4)(6:4)和M_(7)+H_(3)(7:3)五个混播比例,进行牧草鲜草产量、干物质、粗蛋白、中性洗涤纤维、酸性洗涤纤维以及相对饲喂价值等指标研究。结果表明:各混播处理在牧草产量及营养品质上存在显著差异(P<0.05);各混播处理牧草产量与混播体系中黑麦草占比呈现正相关;各混播处理牧草营养品质与混播体系中,紫花苜蓿占比呈现出正相关。综上所述,紫花苜蓿与黑麦草混播处理中以M_(4)+H_(6)(紫花苜蓿播种量9.00 kg·hm^(-2)+黑麦草播种量36.00 kg·hm^(-2))的牧草产量及营养品质最佳。

Alfalfa and ryegrass are high quality forage grasses.In order to explore the optimal mixed planting ratio of alfalfa and ryegrass in Tumushuk City,five mixed sowing ratios M_(5)+H_(5)(5:5),M_(4)+H_(6)(4:6),M_(3)+H_(7)(3:7),M_(6)+H_(4)(6:4)and M_(7)+H_(3)(7:3)were set for alfalfa and ryegrass,the yield,dry matter,crude protein,neutral detergent fiber,acid detergent fiber and relative feeding value of forage grass were studied.The results showed that there were significant differences in forage grass yield and nutritional quality among the mixed sowing treatments(P<0.05).There was a positive correlation between forage grass yield and the proportion of ryegrass in the mixed sowing system.There was a positive correlation between forage grass nutritional quality and the proportion of alfalfa in the mixed sowing system.In conclusion,M_(4)+H_(6)(9.00 kg·hm^(-2)alfalfa and 36.00 kg·hm^(-2)ryegrass)had the best forage grass yield and nutritional quality between the alfalfa and ryegrass mixed sowing treatments.