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home.howstuffworks.com/question181.htm

Carbon, hydrogen and oxygen - Available from air and water and therefore in plentiful supply; Nitrogen, phosphorus, potassium (a.k.a. potash) - The three ...

www.hunker.com/13406975/what-is-the-purpose-of-fertilizers

Jun 25, 2010 ... Fertilizers are an important tool in any garden, lawn, commercial farming operation, or landscape maintenance enterprise. Fertilizers help ...

www.simplot.com/pdf/best/educational_info/roll_of_fertilizer.pdf

WHAT IS FERTILIZER? There are 17 elements that are known to be essential for plant growth and development. Fertilizers (also called plant food elements) are ...

soilsmatter.wordpress.com/2015/03/18/why-do-farmers-use-fertilizers

Mar 18, 2015 ... So, while fertilizers serve an important purpose, farmers must be careful to use the right amount, at the right time, to avoid potential negative ...

www.maximumyield.com/definition/233/all-purpose-fertilizer

An all-purpose fertilizer is a type of fertilizer that includes adequate amounts of the three core chemicals to ensure proper growth: nitrogen, phosphorous, and ...

www.sunset.com/garden/garden-basics/crash-course-fertilizers

Labels identify the package contents as "rose food" or "vegetable food," "lawn fertilizer" or "general-purpose fertilizer." In some stores, you'll find bins filled with ...

www.gardeners.com/how-to/fertilizer-ratios/5161.html

In most cases, an all-purpose, 5-5-5 fertilizer will provide the nutrients all plants need for healthy growth. If a soil test reveals certain nutrient deficiencies, or if you  ...

www.finegardening.com/fertilizing-basics

But for all gardeners, knowledge of fertilizers and how to apply them effectively is ... For instance, a general-purpose fertilizer labeled 20-20-20 means that each ...

www.homedepot.com/c/grow_healthy_lawn_with_all_purpose_fertilizer_HT_BG_OD

This Home Depot all purpose plant fertilizer guide helps you learn about plant characteristics, fertilizer types and how to apply to a variety of plants.