应用电导法实时测定磷酸氢二铵和氯化钾混合肥液浓度
【目的】通过电导率（EC）准确反应水肥一体化条件下磷酸氢二铵和氯化钾不同配比值的肥液质量浓度。【方法】测定了一定质量浓度范围（2~10 g/L）和温度范围（20~45 ℃）内不同磷酸氢二铵和氯化钾配比混合肥液的EC值，并基于灰色关联分析（GRA）法研究了质量浓度?f、温度T和配比值rv对磷酸氢二铵、氯化钾混合溶液电导率的影响。【结果】磷酸氢二铵、氯化钾混合肥液电导率（EC）随质量浓度?f和温度T的升高而增大，随配比值rv的增大而减小；3个因素对混合液EC影响的大小顺序为：质量浓度?f>温度T>配比值rv；基于拟合优度评价指标对比3次样条插值和3次B样条插值后的数据分别优选混合溶液质...
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| Published in | Guanʻgai paishui xuebao Vol. 40; no. 1; pp. 71 - 78 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese English |
| Published |
Xinxiang City
Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
01.01.2021
西北农林科技大学旱区节水农业研究院,陕西杨凌 712100%西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌 712100 中国科学院水利部水土保持研究所,陕西杨凌 712100 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌 712100 西北农林科技大学水利与建筑工程学院,陕西杨凌 712100 西北农林科技大学旱区节水农业研究院,陕西杨凌 712100 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1672-3317 |
| DOI | 10.13522/j.cnki.ggps.2020203 |
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| Abstract | 【目的】通过电导率（EC）准确反应水肥一体化条件下磷酸氢二铵和氯化钾不同配比值的肥液质量浓度。【方法】测定了一定质量浓度范围（2~10 g/L）和温度范围（20~45 ℃）内不同磷酸氢二铵和氯化钾配比混合肥液的EC值，并基于灰色关联分析（GRA）法研究了质量浓度?f、温度T和配比值rv对磷酸氢二铵、氯化钾混合溶液电导率的影响。【结果】磷酸氢二铵、氯化钾混合肥液电导率（EC）随质量浓度?f和温度T的升高而增大，随配比值rv的增大而减小；3个因素对混合液EC影响的大小顺序为：质量浓度?f>温度T>配比值rv；基于拟合优度评价指标对比3次样条插值和3次B样条插值后的数据分别优选混合溶液质量浓度-EC、温度-EC、配比值-EC单因素曲线模型，构建了以磷酸氢二铵、氯化钾混合肥液EC、温度T、配比值rv为自变量的质量浓度预测模型。【结论】该模型预测精度为97.53%，满足实际使用要求，可用于水肥一体化灌溉过程中的肥液浓度的实时监测。 |
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| AbstractList | S275; [目的]通过电导率(EC)准确反应水肥一体化条件下磷酸氢二铵和氯化钾不同配比值的肥液质量浓度.[方法]测定了一定质量浓度范围(2～10 g/L)和温度范围(20～45℃)内不同磷酸氢二铵和氯化钾配比混合肥液的EC值,并基于灰色关联分析(GRA)法研究了质量浓度ρf、温度T和配比值rv对磷酸氢二铵、氯化钾混合溶液电导率的影响.[结果]磷酸氢二铵、氯化钾混合肥液电导率(EC)随质量浓度ρf和温度T的升高而增大,随配比值rv的增大而减小;3个因素对混合液EC影响的大小顺序为:质量浓度ρf>温度T>配比值rv;基于拟合优度评价指标对比3次样条插值和3次B样条插值后的数据分别优选混合溶液质量浓度-EC、温度-EC、配比值-EC单因素曲线模型,构建了以磷酸氢二铵、氯化钾混合肥液EC、温度T、配比值rv为自变量的质量浓度预测模型.[结论]该模型预测精度为97.53％,满足实际使用要求,可用于水肥一体化灌溉过程中的肥液浓度的实时监测. 【目的】通过电导率（EC）准确反应水肥一体化条件下磷酸氢二铵和氯化钾不同配比值的肥液质量浓度。【方法】测定了一定质量浓度范围（2~10 g/L）和温度范围（20~45 ℃）内不同磷酸氢二铵和氯化钾配比混合肥液的EC值，并基于灰色关联分析（GRA）法研究了质量浓度?f、温度T和配比值rv对磷酸氢二铵、氯化钾混合溶液电导率的影响。【结果】磷酸氢二铵、氯化钾混合肥液电导率（EC）随质量浓度?f和温度T的升高而增大，随配比值rv的增大而减小；3个因素对混合液EC影响的大小顺序为：质量浓度?f>温度T>配比值rv；基于拟合优度评价指标对比3次样条插值和3次B样条插值后的数据分别优选混合溶液质量浓度-EC、温度-EC、配比值-EC单因素曲线模型，构建了以磷酸氢二铵、氯化钾混合肥液EC、温度T、配比值rv为自变量的质量浓度预测模型。【结论】该模型预测精度为97.53%，满足实际使用要求，可用于水肥一体化灌溉过程中的肥液浓度的实时监测。 |
| Author | HE, Zili NIU Wenquan WU Menglong WEN Shenglin LI Xuekai |
| AuthorAffiliation | 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌 712100;西北农林科技大学水利与建筑工程学院,陕西杨凌 712100;西北农林科技大学旱区节水农业研究院,陕西杨凌 712100%西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌 712100;西北农林科技大学水利与建筑工程学院,陕西杨凌 712100;中国科学院水利部水土保持研究所,陕西杨凌 712100;西北农林科技大学旱区节水农业研究院,陕西杨凌 712100 |
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| Author_FL | NIU Wenquan WU Menglong HE Zili WEN Shenglin LI Xuekai |
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| Copyright | Copyright Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 2021 Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Snippet | 【目的】通过电导率（EC）准确反应水肥一体化条件下磷酸氢二铵和氯化钾不同配比值的肥液质量浓度。【方法】测定了一定质量浓度范围（2~10 g/L）和温度范围（20~45... S275; [目的]通过电导率(EC)准确反应水肥一体化条件下磷酸氢二铵和氯化钾不同配比值的肥液质量浓度.[方法]测定了一定质量浓度范围(2～10... |
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| SubjectTerms | Accuracy Agricultural management Agrochemicals Chloride Chlorine compounds Correlation analysis Electrical conductivity Electrical resistivity Feasibility studies Fertilization Fertilizers Hydrogen Interpolation Irrigation Measurement methods Monitoring Potassium Potassium chloride Real time Temperature Temperature requirements Time measurement |
| Title | 应用电导法实时测定磷酸氢二铵和氯化钾混合肥液浓度 |
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