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The darkest layer of soil, rich in organic matter, is called the topsoil or the A-horizon. This layer is crucial for plant growth as it contains nutrients and microbial activity necessary for healthy soil fertility and plant development.

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1y ago

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What Soil Horizon Has The Darkest And Richest Soil?

The soil horizon that has the darkest and richest soil is usually the topsoil layer, known as the A horizon. This layer contains a high amount of organic matter and nutrients, making it ideal for plant growth.


What is the layer of soil?

The layer of soil is called the topsoil, which is the uppermost layer of soil that contains most of the organic matter and nutrients that plants need to grow. It is typically the darkest and richest layer of soil, where most plant roots are found.


What layer layer of soil is the finest?

The topsoil is the finest soil layer. Soil 'layers' are called horizons.


Top layer of soil is called?

The top layer of soil is called the topsoil. It is the outermost layer that contains the highest concentration of organic matter and nutrients, making it ideal for supporting plant growth.


What is the soil layer of rock beneath the soil is called what?

The soil layer of rock beneath the soil is called bedrock. It is the solid rock layer that underlies the loose topsoil and subsoil layers.


What is the horizontal layer of soil called?

they are called Horizons.


What is the name for a horizontal layer of soil?

There are four layers and the four layers are top layer called the organic layer, Upper soil layer, middle soil layer, and the last one is lowest layer.


What is the layer of rock beneath the soil?

== == This layer is called bedrock.


The soil layer of rock beneath the soil is called?

Bedrock


What is the uppermost layer of soil called?

The uppermost layer of soil is called topsoil. It is the layer that contains the highest concentration of organic matter and nutrients, making it crucial for plant growth.


A Solid layer of rock under the soil is called?

This layer of solid rock is called bedrock.


Horizonal layer of soil is called what?

A Horizon