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A fertilizer (American English) or fertiliser (British English) is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and industrially produced. [1]
Fertilizers are usually labeled with three numbers, as in 18-20-10, indicating the relative content of the primary macronutrients nitrogen (N), phosphorus (P), and potassium (K), respectively. More precisely, the first number ("N value") is the percentage of elemental nitrogen by weight in the fertilizer; that is, the mass fraction of nitrogen ...
The history of fertilizer has largely shaped political, economic, and social circumstances in their traditional uses. Subsequently, there has been a radical reshaping of environmental conditions following the development of chemically synthesized fertilizers .
A 56-year-old father died Friday inside a tanker truck at a Pasco fertilizer company. Viktor Voloshin was cleaning the trailer with a hose at Two Rivers Terminal in the afternoon when he climbed ...
The U.S. Food and Drug Administration (FDA) announced a ban this week on red dye No. 3, or erythrosine, from foods and oral medications due to a potential cancer risk.. Food manufacturers have ...
24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... January 18, 2025 at 5:48 AM. Are These Red Dye 3 Foods on Your Grocery List?
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