Edaphic Factors affecting agricultural production - SS2 Agriculture Past Questions and Answers - page 2
How does soil depth impact plant growth?
It affects soil color
It determines the type of crop to be grown
It influences root development
It controls soil temperature
Which edaphic factor contributes to water-holding capacity in soil?
Soil organic matter
Soil temperature
Soil type
Soil depth
What is the primary function of beneficial soil microorganisms?
Decompose organic matter
Decrease soil acidity
Increase soil compaction
Enhance pest resistance
Which type of soil is often prone to compaction?
Sandy soil
Clayey soil
Loamy soil
Silty soil
What do edaphic factors help farmers optimize in agriculture?
Crop yields
Animal populations
Crop rotation
Seed selection
How can farmers improve soil fertility in acidic soils, and why is it important?
Farmers can add lime to raise the pH and make it less acidic, which enhances nutrient availability and promotes better plant growth.
Explain the relationship between soil texture and water retention in agriculture.
Soil texture determines how well soil retains water; for example, clayey soils retain more water than sandy soils.)
Why is soil testing considered a valuable practice in modern agriculture?
Soil testing helps farmers identify nutrient deficiencies and tailor their fertilizer applications, promoting efficient nutrient use and better crop yields.
Describe the role of soil microorganisms in nutrient cycling within agricultural ecosystems.
Soil microorganisms decompose organic matter, releasing nutrients for plants to absorb, thus promoting nutrient cycling and plant growth.
How does soil depth influence the selection of crops and their growth patterns?
Shallow soils may limit root development, affecting crop selection, and deep soils allow for deeper root penetration, influencing crop choices and their ability to access water and nutrients.