数字农科院2.0

Biochar prevents soybean seedling injury caused by atrazine residue by regulating the concentration of this herbicide in soil pore water

文献类型： 外文期刊

作者： Jun Xie;Yage Guo;Yongqiang Ma;Hongyun Jiang;Lan Zhang;Liangang Mao;Lizhen Zhu;Chi Wu;Yongquan Zheng;Xingang Liu

作者机构：

关键词： Atrazine;Biochar amendment;Critical value of injury;Soil pore water;Soybean

期刊名称： Biochar

ISSN： 2524-7867

年卷期： 2024 年 6 卷 1 期

页码：

收录情况： SCIE（2024版） ; ; CSCD（2023-2024年度）

摘要： The residue of atrazine in field soils poses a major threat to crop growth in the rotation system, raising concerns about grain security and food safety. Current agricultural production requires more efficient and cost-effective mitigation measures in response to the emerging threat. This study reported the critical concentration (0.1 mg L−1) of atrazine injury to soybean seedlings in soil pore water and how biochar amendment could influence the distribution of atrazine in different soil environments. The results showed that biochar significantly reduced the concentration of atrazine in soil pore water, for example, 0.5% biochar in red (cinnamon, fluvo-aquic, paddy, black) soil reduced atrazine concentration from 0.31 (0.20, 0.18, 0.12, 0.03) mg L−1 to 0.004 (0.002, 0.005, 0.013, 0.011) mg L−1 in pore water (P < 0.01). On the basis of these, a reliable mathematical model was developed to predict the atrazine concentration in soil pore water under (or without) biochar amendment conditions. The verification results showed that the mean absolute percentage error of the model was 14.1%, indicating that the prediction error was within a reasonable range. Our work provides a precise solution to crop injury caused by soil residual herbicides with the aid of biochar, which reduces the bioavailability of atrazine in soybean seedlings. This method not only maximizes the use of biochar but also provides effective crop protection and environmental benefits. Graphical Abstract: (Figure presented.).

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