| Cite this article: | 张晋丰,郭雅飞,栗丽,等.山西省小麦种植区土壤养分特征分析[J].灌溉排水学报,0,():-. |
| ZHANG Jinfeng,GUO Yafei,LI Li,et al.山西省小麦种植区土壤养分特征分析[J].灌溉排水学报,0,():-. |
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| Soil Nutrient Status in Wheat Planting Areas in Shanxi Province |
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ZHANG Jinfeng, GUO Yafei, LI Li, LI Tingliang, LIU Yang, CHEN Ting, WANG Jiahao, Lv Zhuocheng
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College of Resources and Environment, Shanxi Agricultural University
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| Abstract: |
| Abstract:【Objective】The objective of the study was to clarify the soil nutrient supply capacity in wheat planting area of Shanxi Province and further provide theoretical basis for local wheat production with higher quality and efficiency.【Method】 Three counties, including Hongtong, Xiangfen and Wenxi, were selected as the representative wheat planting areas in the study based on the data of Shanxi Statistical Yearbook 2018,and the soil samples of plough layer (0～20 cm) were collected according to the soil type, topographic feature and distribution of wheat area. The soil nitrate nitrogen, available phosphorus, available potassium, organic matter and six trace elements (Cu, Zn, Fe, Mn, Ni and Se) were analyzed.【Result】The content of soil nitrate nitrogen in typical wheat planting area was 1.9~115.2 mg/kg, with an average value of 35.14 mg/kg; the content of available phosphorus was 2.4~88 mg/kg, with an average value of 26.9 mg/kg; the content of available potassium was 97.1~576.2 mg/kg, with an average value of 297.9 mg/kg, the content of organic matter was 5.61~64.28 g/kg, with an average value of 21.65 g/kg In general, the soil nutrient content in this study were 1.26 %~109.4 % higher than that of the second soil survey of Shanxi Province. The 6 trace elements contents were also relatively abundant in wheat planting area. The content of Cu ranges from 16.09 to 59.71 mg/kg, with an average of 30.40 mg/kg; the content of Zn ranges from 57.88~198 mg/kg ,with an average of 90.04 mg/kg; the content of Fe ranges from 2.30 %~6.66 %,with an average of 3.76 %; the content of Mn ranges from 426 to 926.1 mg/kg, with an average of 660.24 mg/kg; the content of Ni ranges from 23.1 to 47.75 mg/kg, with an average of 34.80 mg/kg; the content of Se ranges from 0.017 to 1.354 mg/kg, with an average of 0.434 mg/kg. The contents of 6 trace elements increased by 10.82 %~141.11 % compared with the background values of soil elements in Shanxi Province, and the sequence of 6 trace element contents was Fe >Mn >Zn >Ni >Cu >Se. there was extremely significant correlation between the organic matter and available phosphorus and total Se in local soil. The spatial distribution of soil nutrients in wheat planting area showed the content of soil nitrate nitrogen, available phosphorus, available potassium of Xiangfen County were the highest, and the content of 6 trace elements of Wenxi County were the lowest.【Conclusion】After more than 30 years of soil evolution and fertilization management, the soil nutrient content in wheat planting area of Shanxi Province was significantly higher than that of second soil survey of Shanxi Province, and the overall content was relatively abundant. The wheat production with high quality and high efficiency, and the safety of soil ecological environment in Shanxi Province are the important contents to be considered in the process of fertilization management in the future. |
| Key words: Wheat cultivation area; major element; Organic matter; trace element |
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