Liquid fertilizer composition containing color change indicator
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United States of America Patent
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app pub date -
May 29, 2015
filing date -
May 29, 2014
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Abstract
A liquid fertilizer adjuvant composition is provided that includes a fertilizer, a pH buffering agent, a surfactant, and one or more color indicator that produce a first color change that indicates when an pre-selected first level of field treatment has been achieved. The composition is provided as a single solution. A second color change occurs when a pre-selected second, higher level of field treatment is required. The color change indicative of a pre-selected pH, water hardness, or a combination of both. The composition is particular well suited for inclusion of a urea fertilizer.
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Cited Art Landscape
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