Chapter 11: Problem 7

State and define the relationships among humus, detritus, and soil organisms. Describe the role each of these factors plays in creating a soil favorable to plants.

Short Answer

Expert verified

Humus is the organic part of soil formed through the decomposition of plant material by soil organisms. Detritus refers to dead organic material which, when decomposed by soil organisms, helps form humus. Soil organisms, such as bacteria and fungi, aid in this decomposition process. Together, they play a crucial role in creating fertile and well-structured soil conducive to plant growth.

Step by step solution

Define humus

Humus is the organic part of soil, created by the degradation of leaves and other plant material by soil microorganisms. It provides essential nutrients for plant growth.

Define detritus

Detritus is dead organic material, such as decaying plants and animals. It contributes to the formation of humus when decomposed by soil organisms.

Define soil organisms

Soil organisms are living entities in the soil, such as bacteria, fungi, insects, and earthworms. They help in the decomposition of detritus into humus.

Relate humus, detritus, and soil organisms

Detritus, consisting of dead organic matter, provides food for soil organisms. These organisms decompose detritus, creating humus, which in turn, enhances the fertility and structure of the soil.

Role of these factors in soil creation

Humus, detritus, and soil organisms all play crucial roles in creating a soil that is favorable to plants. Detritus provides food for soil organisms, which decompose this material to create humus. Humus improves the soil structure and nutrient content, making it favorable for plant growth.

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State and define the relationships among humus, detritus, and soil organisms. Describe the role each of these factors plays in creating a soil favorable to plants.

Short Answer

Step by step solution

Define humus

Define detritus

Define soil organisms

Relate humus, detritus, and soil organisms

Role of these factors in soil creation

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