Phosphate in Soils: An Undergraduate Exploration of Soil Texture, Chemistry, and Amendment

Phosphate in Soils: An Undergraduate Exploration of Soil Texture, Chemistry, and Amendment
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土壤中的磷酸盐:土壤质地、化学和改良的本科探索

DOI:
10.1021/acs.jchemed.9b00529
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发表时间:
2020
影响因子:
3
通讯作者:
Brown, Ashli
Brown, Ashli
中科院分区:
化学2区
文献类型:
--
作者:
Crisler, Glenn B.;Perera, Viveka;Hernandez, Cintly Guzman;Orr, Andre;Davis, Roger;Moore, Jessie;Smith, James;Varco, Jac;Schauwecker, Tim;Brown, Ashli

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本文介绍了一个以土壤科学和化学为主要内容的本科生实验室。学生们进行了一系列测试,通过添加新型土壤改良剂铝镁生物炭,对土壤的磷酸盐保留特征、质地、pH值、有机质含量和渗透性进行分类。这个实验室的成本很低,因为大多数化学品都很便宜,土柱是用用过的水瓶、滤纸和胶带制作的。学生应用他们的测量来了解农业如何在海洋和流域健康中发挥作用,以及土壤测试,土壤改良剂和负责任的农业实践如何最大限度地减少农业的足迹。重要的是,以农业为重点的学生要了解土壤化学如何与作物产量,以及负责任的农业实践的重要性。本实验的学习成果和学生的态度进行了评估,以评估实验。
This paper presents an experimental lab designed for undergraduate students which focuses on soil science and chemistry. Students perform a series of tests to classify soil’s phosphate retaining characteristics, texture, pH, organic matter content, and permeability with the addition of a novel soil amendment, Al Mg biochar. This lab has minimal cost as most chemicals are inexpensive and a soil column is crafted from a used water bottle, filter paper, and masking tape. Students apply their measurements to understand how agriculture plays a role in ocean and watershed health and how soil-testing, soil amendments, and responsible farming practices can minimize agriculture’s footprint. It is important for agriculturally focused students to understand how soil chemistry relates to crop yields, and the importance of responsible agricultural practices. Learning outcomes and student attitudes from this experiment were assessed to evaluate the experiment.
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