Get premium membership and access questions with answers, video lessons as well as revision papers.
1.Parent material:
>This refers to the mineral material, or organic material from which the soil is formed.
>Soils will carry the characteristics of its parent material such as color, texture, structure, mineral composition and permeability.
For example, if soils are formed from an area with large rocks (parent rocks) of red sandstone, the soils will also be red in color and have the same feel as its parent material.
2.Time:
>Soils can take many years to form.
>Younger soils have some characteristics from their parent material, but as they age, the addition of organic matter, exposure to moisture and other environmental factors may change its features.
>Eventually they may change from one soil type to another.
3.Climate:
>Of importance is temperature and precipitation.
>When precipitation exceeds evaporation, leaching of the soil will occur.
>Temperature determines the rate of reactions; chemical and biological decay and so has an influence on weathering and
humification.
4.Organisms:(Plants and animals)
>Plants provide vegetative residue cover.
>Roots also hold the soils and protect them from erosion.
>Plants shelter the soils from the sun and other environmental conditions, helping the soils to retain the needed moisture for chemical and biological reactions.
>Fungi, bacteria, insects, earthworms, and burrowing animals help with soil aeration.
>Worms help breakdown organic matter and aid decomposition.
>Animal droppings, dead insects and animals result in more decaying organic matter.
>Microorganisms also help with mineral and nutrient cycling and chemical reactions.
5.Topography and Relief:
>It's the shape of the land surface, its slope and position on the landscape
Impacts:
>It influences soil profile thickness i.e. as angle of slope increases so does the erosion hazard.
>It has an effect on climate which is also a soil forming factor.
>Gradient affects run-off, percolation and mass movement.
>It influences aspect which creates micro-climatic conditions.
Anganifelix answered the question on June 11, 2018 at 11:17
- Describe the soil profile(Solved)
Describe the soil profile.
Date posted: June 11, 2018. Answers (1)
- What is soil profile?(Solved)
What is soil profile?
Date posted: June 11, 2018. Answers (1)
- State the Functions of soils in agriculture(Solved)
State the Functions of soils in agriculture
Date posted: June 11, 2018. Answers (1)
- Overarching Functions of Soils(Solved)
Overarching Functions of Soils.
Date posted: June 11, 2018. Answers (1)
- (a)Define the term soil. (b)State the soil components of soil. (c)Define the term Pedology.(Solved)
1.a)Define the term soil.
b)State the soil components of soil.
c)Define the term Pedology.
Date posted: June 11, 2018. Answers (1)
- State the Constraints to Crop Production in Africa (Solved)
State the Constraints to Crop Production in Africa
Date posted: June 11, 2018. Answers (1)
- Describe the Special-Purpose Classification of plants(Solved)
Describe the Special-Purpose Classification of plants
Date posted: June 11, 2018. Answers (1)
- Describe the Agronomic/economic classification of plants(Solved)
Describe the Agronomic/economic classification of plants
Date posted: June 11, 2018. Answers (1)
- Explain the general Importance of Food Technology and Quality Assurance(Solved)
Explain the general Importance of Food Technology and Quality Assurance
Date posted: June 7, 2018. Answers (1)
- What is total quality management (TQM)?(Solved)
What is total quality management (TQM)?
Date posted: June 7, 2018. Answers (1)
- (a) Define Quality assurance. (b)Give the examples between quality assurance and Quality control (c) Explain how the desired results are obtained in food production.(Solved)
(a) Define Quality assurance.
(b) Give the examples between quality assurance and Quality control
(c) Explain how the desired results are obtained in food production.
Date posted: June 7, 2018. Answers (1)
- Explain the meaning and the importance of the following in food production;
1.Quality
2.Quality control(Solved)
Explain the meaning and the importance of the following in food production;
1.Quality
2.Quality control
Date posted: June 7, 2018. Answers (1)
- Explain the relationship between food science and food technology(Solved)
Explain the relationship between food science and food technology
Date posted: June 7, 2018. Answers (1)
- Define food according to the Codex Alimentarius Commission(Solved)
Define food according to the Codex Alimentarius Commission
Date posted: June 7, 2018. Answers (1)
- Explain the reasons why sorghum is able to tolerate drought better than most other grain crops.(Solved)
Explain the reasons why sorghum is able to tolerate drought better than most other grain crops.
Date posted: June 6, 2018. Answers (1)
- Give six approaches that can be used to minimize damage caused by striga weed in maize production(Solved)
Give six approaches that can be used to minimize damage caused by striga weed in maize production.
Date posted: June 6, 2018. Answers (1)
- Describe various agencies and institutions involved in the marketing of agriculture produce(Solved)
Describe various agencies and institutions involved in the marketing of agriculture produce.
Date posted: May 29, 2018. Answers (1)
- What are the disadvantages of strip grazing?(Solved)
What are the disadvantages of strip grazing?
Date posted: May 29, 2018. Answers (1)
- Outline the features of agribusiness management.(Solved)
Outline the features of agribusiness management.
Date posted: May 29, 2018. Answers (1)
- Outline the importance of agribusiness.(Solved)
Outline the importance of agribusiness.
Date posted: May 29, 2018. Answers (1)