Crop residue grazing or baling is common in the western Corn Belt. However, its impacts on subsequent crop yields under different irrigation levels and tillage systems are unclear. We investigated the impacts of corn (Zea mays L.) residue baling and cattle grazing on soil compaction, water content, and corn yield under full and limited irrigated no-till in Nebraska during three years. In Years 2 and 3, an additional tillage treatment (strip till) was implemented to evaluate its effects on grain yield under the above treatments. Residue removal effects on compaction and water content did not vary with irrigation level. Grazing (3.68 animal units ha⁻¹) minimally impacted compaction and soil profile water content compared to no removal. Baling increased cone index by 34–53% in the 0-to-12.5-cm depth and decreased water content by 6 cm compared to no removal. Residue removal effects on yield did not depend on irrigation. Residue removal impacts depended on tillage in Year 3 only. Full irrigation increased corn yields up to 11% compared to limited irrigation. Strip till increased yield by 11% compared to no-till in Year 2 only. Baling and grazing had no effect on corn yield in Year 1, but baling and grazing increased yield by 9% compared to no removal in Year 2, likely due to lower water content. In Year 3, grazing and baling increased yield by 9% under no-till but not strip till. Overall, grazing had minimal impacts while baling increased yield and compaction and decreased water content with few variations due to irrigation or tillage.

中文翻译：

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灌溉保护性耕作制度下玉米秸秆打包放牧对玉米产量的影响

作物残茬放牧或打包在西部玉米带很常见。然而，其对不同灌溉水平和耕作制度下后续作物产量的影响尚不清楚。我们调查了内布拉斯加州三年内玉米 ( Zea mays L.) 残留物打包和牛放牧对土壤压实、含水量和玉米产量的影响，其中包括完全和有限灌溉免耕的内布拉斯加州。在第 2 年和第 3 年，实施额外的耕作处理（条耕）以评估其在上述处理下对谷物产量的影响。残留物去除对压实和含水量的影响不随灌溉水平而变化。放牧（3.68 动物单位公顷^-1) 与没有去除相比，对压实和土壤剖面含水量的影响最小。与没有去除相比，打捆在 0 到 12.5 厘米深度内增加了 34-53% 的锥度指数，并减少了 6 厘米的含水量。残留物去除对产量的影响不依赖于灌溉。残留物清除影响仅取决于第 3 年的耕作。与有限灌溉相比，完全灌溉将玉米产量提高了 11%。与仅在第 2 年的免耕相比，剥除耕作的产量提高了 11%。打捆和放牧对第 1 年的玉米产量没有影响，但与第 2 年的不清除相比，打捆和放牧使产量增加了 9%，这可能是由于含水量较低。在第 3 年，在免耕而不是条耕的情况下，放牧和打包使产量提高了 9%。全面的，