不同水平有机肥对黑麦草产量、营养品质及发酵品质的影响  

Effects of different levels of organic fertilizer on yield,nutritional quality,and fermentation quality of ryegrass

作　　者：蒋阿宁[1] 管建慧[1] JIANG A-ning;GUAN Jian-hui

机构地区：[1]包头轻工职业技术学院农牧工程系,内蒙古包头014035

出　　处：《饲料研究》2024年第3期112-116,共5页Feed Research

摘　　要：试验旨在研究不同水平的有机肥对黑麦草产量、营养成分及发酵品质的影响。试验以邦德品种的多花黑麦草为试验材料,设置4个有机肥施肥水平,即750(1组)、1000(2组)、1250(3组)、1500 kg/hm^(2)(4组),探讨施加不同水平的有机肥条件下多花黑麦草产量、营养成分及发酵品质的变化。结果显示,试验3组和试验4组黑麦草株高、鲜草产量显著高于试验1组(P<0.05);试验3组黑麦草第一茬的干草产量显著高于试验1组和试验2组(P<0.05),试验2组、试验3组和试验4组黑麦草第三茬的干草产量显著高于试验1组(P<0.05)。试验3组和试验4组黑麦草的粗蛋白含量显著高于试验1组和试验2组(P<0.05),中性洗涤纤维含量显著低于试验1组(P<0.05)。试验3组和试验4组黑麦草青贮粗蛋白含量显著高于试验1组(P<0.05),氨态氮、中性洗涤纤维和酸性洗涤纤维含量显著低于试验1组(P<0.05);试验2组、试验3组、试验4组黑麦草青贮的乳酸、乙酸含量显著高于试验1组(P<0.05),且试验3组乳酸含量显著高于试验2组和试验4组(P<0.05)。试验3组和试验4组发酵黑麦草中粗蛋白含量显著高于试验1组和试验2组(P<0.05),中性洗涤纤维和酸性洗涤纤维含量显著低于试验1组(P<0.05)。研究表明,在黑麦草种植过程中施1250 kg/hm^(2)的有机肥对其草产量、营养成分及发酵品质较好。The study aimed to investigate the impact of different levels of organic fertilizer on the yield,nutrient composition,and fermentation quality of ryegrass.Using the Bond variety of polyfloral ryegrass as the experimental material,four organic fertilizer application levels were set at 750(Group 1),1000(Group 2),1250(Group 3),and 1500 kg/hm^(2)(Group 4).The changes in yield,nutrient composition,and fermentation quality of polyfloral ryegrass under different levels of organic fertilizer application were explored.The results showed that the plant height and fresh grass yield of ryegrass in Group 3 and Group 4 were significantly higher than those in Group 1(P<0.05).The dry hay yield of ryegrass in the first cut was significantly higher in Group 3 compared to Group 1 and Group 2(P<0.05),and the dry hay yield in the third cut was significantly higher in Group 2,Group 3,and Group 4 compared to Group 1(P<0.05).The contentrations of crude protein of ryegrass in Group 3 and Group 4 were significantly higher than that in Group 1 and Group 2(P<0.05),and the contentration of neutral detergent fiber was significantly lower than that in Group 1(P<0.05).The contentration of crude protein of ensiled ryegrass in Group 3 and Group 4 was significantly higher than that in Group 1(P<0.05),while the contentrations of ammonia nitrogen,neutral detergent fiber,and acid detergent fiber were significantly lower than that in Group 1(P<0.05).The concentrations of lactic acid and acetic acid of ensiled ryegrass in Group 2,Group 3,and Group 4 were significantly higher than that in Group 1(P<0.05),and the concentration of lactic acid in Group 3 was significantly higher than that in Group 2 and Group 4(P<0.05).The contentration of crude protein of fermented ryegrass in Group 3 and Group 4 was significantly higher than that in Group 1 and Group 2(P<0.05),and the contentrations of neutral detergent fiber and acid detergent fiber were significantly lower than that in Group 1(P<0.05).The study indicates that applying 1250 kg/hm^(2)of organic fertilize

关 键 词：有机肥 黑麦草 产量 营养品质 发酵品质 

分 类 号：S816[农业科学—饲料科学]