Garden Myths - Learn the truth about gardening

Posts tagged nutrients

Can Leaves be Used to Identify Nutrient Deficiencies?

There are lots of examples of people trying to use plant leaf characteristics to identify nutrient deficiencies in the soil. This seems to make a lot of sense. If the soil is lacking a specific nutrient, it should show up in the plant and it seems to follow that by examining the physical characteristics of the leaf you should be able to identify the nutrient deficiency.

How reliable is this method of diagnosis? Can you really identify a nutrient deficiency in the soil by looking at plant leaves?

Plant Nutrient Deficiency Symptoms by Permablitz

Plant Nutrient Deficiency Symptoms by Permablitz

—————- Read More —————-

Trace Mineral Fertilizers – How Many Nutrients Do Plants Need?

I just replied to a comment in my Fish Fertilizer Post which said, “It’s surprising the article makes no mention of the full spectrum of minerals present in sea food, and therefore the fertilizer. Sea water is known to have an astounding 82 elements (don’t have the link, please Google it) The only thing that prevents us from using sea water as fertilizer is the high sodium content. Fish do the wonderful job of filtering out that excess sodium and leaving you with extremely mineral rich organic matter ! “.

A couple of weeks ago at the Guelph Organic Conference, one of the salespeople selling an Australian sea salt extract, claimed that his product contained 99 nutrients that plants need.

I found the following claim on a company website; “Azomite – Organic Trace Mineral Powder – 67 Essential Minerals for You and Your Garden”. Azomite is a brand name product made from “special” rock dust.

Why does fertilizer only show three nutrient numbers, NPK, when plants need either 67, 82 or 99 nutrients? Inquisitive gardeners want to know.

Periodic Table of Elements

Periodic Table of Elements

—————- Read More —————-

Eggshells – Do They Decompose In The Garden?

Lots of people add eggshells to the garden or compost pile. It is claimed that they add important calcium to the soil for plants. Is this true? How well do they decompose? What happens to them in a compost pile? Do they add any value to the garden?

Eggshells - Do They Decompose In The Garden

Eggshells that have been sitting in the garden for more than 3 years, by Robert Pavlis

—————- Read More —————-

Container Gardening – Fertilizers

The GardenMyths.com blog is mostly focused on gardening in the ground. Comments may or may not apply to container gardening and I rarely make special comments about potted plants.. A few weeks ago a reader asked me several questions about fertilizing plants in containers and it got me thinking about the various differences between container gardening and gardening in the ground. In this post I’ll be looking specifically at fertilizing potted plants grown in a soil-less mix.

Fertilizing potted plants

Fertilizing potted plants

—————- Read More —————-