In order to explore the influences of sheep manure mixed with chemical fertilizers upon the yield and quality of maize and the spatial and temporal distribution of soil inorganic nitrogen under the wheat-maize rotation system, achieve increased yield and efficiency with rational fertilization of maize in this area, and at the same time provide a reasonable scientific basis for green production, an experiment was performed at Wanbei Comprehensive Experimental Station of Anhui Agricultural University in 2020 accordingly. The soil for the experiment is sand ginger black soil, and the subject is Zhengdan 958. The experiment adopts a randomized block design with 6 treatments: no fertilizer (T1), single application of the chemical fertilizer (T2), 15% sheep manure mixed with the chemical fertilizer (T3), 30% sheep manure combined with the chemical fertilizer (T4), 45% sheep manure added with the chemical fertilizer (T5), and only sheep manure (T6). The amount of nitrogen, phosphorus, and potassium applied in each treatment remains the same. The result of the experiment shows that T1 treatment has the lowest yield, followed by T6 treatment. The yield of sheep manure combined with the chemical fertilizer is much higher than that of pure sheep manure and no fertilizer. Among them, the yield of T3 is the highest and T4 is the lowest. There is no obvious variation between the combined treatments. Compared with single usage of the chemical fertilizer, the fat content of maize kernels treated with T3 and T4 is 8.9% and 5.6% higher than that of T2 treatment. The protein content of maize kernels treated with T3, T4, and T5 is 2.3%, 2.5%, and 2% higher than that of T2. It shows that the mixture of sheep manure and chemical fertilizer can improve the quality of maize kernels in some degree. The partial productivity of the nitrogen fertilizer in T3 and T5 treatments is 3.7% and 0.8% higher than that of T2 treatment, and the agronomic utilization rate of the nitrogen fertilizer is 10.9% and 1.6% higher than that of T2 treatment. T6 is much lower than that of T2 treatment. It certifies that the combined application of chemical fertilizers with sheep manure can increase the partial productivity and the agronomic utilization rate of the nitrogen fertilizer and increase crop yields and farmers’ income. The nitrate nitrogen of 40–60 cm soil layer is increased by 30.4%, 60–80 cm soil layer is increased by 56.5%, and 80–100 cm soil layer is increased by 11.6%. It shows that the mixed usage of organic and inorganic fertilizers can prevent nitrate nitrogen from moving to deep soil and reduce groundwater pollution.

中文翻译：

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羊粪配施化肥对玉米产量、品质及土壤无机氮时空分布的影响

为探讨小麦-玉米轮作制度下羊粪混施化肥对玉米产量、品质及土壤无机氮时空分布的影响，实现玉米合理施肥增产增效。在为绿色生产提供合理科学依据的同时，2020年在安徽农业大学皖北综合实验站进行了相应的试验。试验土壤为沙姜黑土，试验对象为正单958。试验采用随机区组设计，6个处理：不施肥（T1）、单施化肥（T2）、15%羊粪混施与化肥（T3），30%羊粪加化肥（T4），45%羊粪加化肥（T5），只加羊粪（T6）。各处理施氮、磷、钾量保持不变。实验结果表明，T1处理的产量最低，其次是T6处理。羊粪配施化肥产量远高于纯羊粪不施化肥。其中，T3的产量最高，T4的产量最低。联合治疗之间无明显差异。与单独施用化肥相比，T3和T4处理的玉米籽粒脂肪含量比T2处理高8.9%和5.6%。T3、T4、T5处理的玉米籽粒蛋白质含量分别为2.3%、2.5%、并且比 T2 高 2%。说明羊粪与化肥混合使用能在一定程度上提高玉米粒的品质。T3和T5处理氮肥部分生产力比T2处理提高3.7%和0.8%，氮肥农艺利用率比T2处理提高10.9%和1.6%。T6远低于T2治疗。证明化肥与羊粪配合施用，可提高部分生产力和氮肥的农艺利用率，增加作物产量和农民收入。40~60 cm土层硝态氮增加30.4%，60~80 cm土层增加56.5%，80~100 cm土层增加11.6%。