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作者	单位
祝天天，贺鹏，李军辉，安桦，杨珍平	（1.山西农业大学农学院,山西晋中 030801 2.晋能控股煤业集团朔州煤电小峪煤业有限公司,山西朔州 038300）

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中文摘要:

为探究Zn（锌）、Fe（铁）、Ca（钙）、B（硼）4种矿质元素在燕麦籽粒中的含量与其在土壤中的有效态含量的相关性，在山西省燕麦种植面积较大的3个区县（朔州市平鲁区、右玉县和大同市左云县），选取了240个村庄的332个点位，采集耕层土壤，并收集其上种植收获的燕麦籽粒样品，检测4种元素在土壤中的有效态含量和在燕麦籽粒中的含量，并分析二者的相关性。结果表明：（1）4种元素在3个生产区土壤中的有效态含量表现为Ca>Fe>Zn>B，且Ca含量属于高水平，Fe、Zn、B含量属于中等或低水平；在同一区县不同采样点间，土壤有效Zn含量差异较大，有效Ca含量差异较小，另两种元素含量的差异性介于二者之间。（2）4种元素在燕麦籽粒中的平均积累量为Ca>Fe>B>Zn，与其他学者的研究结果相比，Fe与Zn的平均含量相对较低，Ca的平均含量相对较高；同一区县不同采样点间，燕麦籽粒中B积累量差异较大，Zn积累量差异较小，Fe、Ca积累量差异居中。（3）经相关分析，土壤中有效态Zn、Fe、B含量间存在显著正相关关系（P＜0.05），三种元素含量与Ca含量的相关程度存在地区差异；燕麦籽粒中Zn、Fe、B含量与Ca的积累量呈正相关；4种元素在燕麦籽粒中的积累量与其在土壤中的有效态含量的相关性在三个县区表现不一，其中在土壤有效态含量尤其Ca含量相对较高的右玉县，燕麦籽粒Zn含量与土壤有效态Zn、Ca、B含量均呈显著正相关。综上，本试验所在燕麦生产区，土壤有效态Fe、Zn、B含量与燕麦籽粒中Fe、Zn、B含量均有提升空间；钙质土壤区适当降低土壤有效态Ca含量有助于促进燕麦籽粒Ca积累。

英文摘要:

In order to explore the correlation between the available contents of Zn(zinc), Fe(iron), Ca(calcium) and B(boron) in oat grains and their available contents in soil, 332 sites of 240 villages were selected in three districts and counties with large oat planting area in Shanxi Province(Pinglu District and Youyu County of Shuozhou City, and Zuoyun County of Datong City). The topsoil was collected and the oat grain samples were harvested. The available contents of the four elements in the soil and their contents in oat grains were determined, and the correlation between the two was analyzed. The results showed that: the available contents of the four elements in the soil of the three production areas ranked as Ca>Fe>Zn>B, where the content of Ca was high, and the contents of Fe, Zn, and B were medium or low. Comparing the available contents of the four elements in the soil of different sampling points under the same district and county, the variation of available Zn content was large, the variation of available Ca content was small, and the differences of the available Fe or B contents falled into the middle. The average accumulation of the four elements in oat grain ranked as Ca>Fe>B>Zn. Compared with the results of other studies, the average content of Fe and Zn was relatively low, while the average contents of Ca was relatively high. Compared the accumulation of the four elements in oat grains in the different sampling sites under the same district and county, the variation of B accumulation was large, the variation of Zn accumulation was small. and the variations of Ca or Fe accumulation were in the middle.Correlation analysis showed that there was significantly positive correlation between the contents of available Zn, Fe and B in soil, and there were regional differences in the correlation between the contents of these three elements and Ca content. The contents of Zn, Fe and B in oat grains were positively correlated with the accumulation of Ca. The correlation between the original accumulation of the four elements in oat grains and their available contents in soil was different in the three counties. Among them, in Youyu County, where the available content of soil, especially Ca content, was relatively high, there was significantly positive correlation between grain Zn and soil available Zn, Ca and B. The correlation between grain Zn and soil available Zn, Ca and B was significantly positive. In summary, the contents of available Fe, Zn and B in soil and the content of Fe, Zn and B in oat grains in the oat production area of this experiment could be improved. Appropriate reduction of soil available Ca content in calcareous soil area is helpful to promote Ca accumulation in oat grains.

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