Fertilizers’ Impact on Soil Health Compared

In a newly published study, researchers dug into how fertilizing with manure affects soil quality, compared with inorganic fertilizer, according an article by the American Society of Agronomy.

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Ekrem Ozlu of the University of Wisconsin-Madison and his team studied two fields in South Dakota. From 2003 to 2015, the research team applied either manure or inorganic fertilizer to field plots growing corn and soybeans. They used low, medium, and high manure levels, and medium and high inorganic fertilizer levels. They also had a control treatment of no soil additives to provide a comparison.

In the summer of 2015, they collected soil samples at a variety of depths using a push probe auger. Then they analyzed the samples.

Continue reading at the American Society of Agronomy.

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