【摘要】 本研究以青贮玉米先玉1321为研究对象，分析了不同羊粪施用量和青贮添加剂对其农艺性状、产量品质、营养成分和经济效益的影响。结果显示，羊粪施用量对青贮玉米产量有显著影响(P<0.05),且产量与株高、平均日增高呈显著正相关(P<0.05),相关系数分别为0.936、0.561;产量与穗长、茎粗呈正相关，相关系数分别为0.019、0.233。与对照组相比，试验组干物质、粗蛋白含量显著提高(P<0.05);试验Ⅲ组粗脂肪、钙、磷含量均显著提高(P<0.05);试验Ⅱ、Ⅲ、Ⅳ组中性洗涤纤维含量显著提高(P<0.05);试验Ⅲ、Ⅳ组淀粉含量显著提高(P<0.05)。羊粪施用量相同的情况下，与青贮菌剂A相比，添加青贮菌剂B可以显著提高青贮干物质、粗脂肪、粗蛋白和乳酸含量，降低中性洗涤纤维、酸性洗涤纤维、乙酸、丁酸含量以及pH。处理Ⅰ、Ⅱ、Ⅲ、Ⅳ组的利润均高于对照组；其中处理Ⅲ组施用60 m~3/hm~2羊粪时利润最高。结果表明，施用羊粪可以提高青贮玉米产量和营养成分，以60 m~3/hm~2为最佳施用量，经济效益最高，且青贮菌剂B适宜在生产实践中推广使用。更多还原

【Abstract】 This study investigated the effects of different sheep manure application rates and silage additives on the agronomic traits, yield quality, nutritional composition, and economic benefits of silage corn(cultivar Xianyu 1321). The results showed that sheep manure application rate significantly affected silage corn yield(P<0.05). Yield was significantly positively correlated with plant height and average daily height increase(P<0.05), with correlation coefficients of 0.936 and 0.561, respectively. It also showed positive correlations with ear length(0.019) and stem diameter(0.233). Compared with the control group, the experimental groups showed significantly higher dry matter and crude protein contents(P<0.05). In experimental group Ⅲ, crude fat, calcium, and phosphorus contents were all significantly increased(P<0.05). Neutral detergent fiber content was significantly higher in groups Ⅱ, Ⅲ, and Ⅳ(P<0.05), while starch content was significantly increased in groups Ⅲ and IV(P<0.05). Under the same sheep manure application rate, the addition of silage inoculant B, compared with silage inoculant A, significantly increased silage dry matter, crude fat, crude protein, and lactic acid content, while reducing neutral detergent fiber, acid detergent fiber, acetic acid, butyric acid content, and pH. The profits of treatments Ⅰ, Ⅱ, Ⅲ, and IV were all higher than that of the control group, with treatment Ⅲ(applying 60 m~3/hm~2 of sheep manure) achieving the highest profit. The results indicate that sheep manure application can improve both the yield and nutritional quality of silage corn, with an optimal application rate of 60 m~3/hm~2 delivering the highest economic benefit. Moreover, silage inoculant B is suitable for promotion in practical production.更多还原