Biological Properties (Leaving Cert Agricultural Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What three key factors do biological properties of soil determine?
What three key factors do biological properties of soil determine?
Nutrient availability, structure, soil health
Which organisms are described as 'ecosystem engineers' in soil?
Which organisms are described as 'ecosystem engineers' in soil?
Earthworms
What does the soil microbiome refer to?
What does the soil microbiome refer to?
Community of tiny living organisms
Which nitrogen form is most easily absorbed by plants?
Which nitrogen form is most easily absorbed by plants?
Nitrate
What is the process of converting atmospheric nitrogen gas into ammonia called?
What is the process of converting atmospheric nitrogen gas into ammonia called?
Nitrogen fixation
What happens to organic matter under continuous tillage?
What happens to organic matter under continuous tillage?
Faster decomposition & reduced fertility
What is carbon sequestration in agricultural soils?
What is carbon sequestration in agricultural soils?
Long-term storage of carbon in soil
Which nutrient uptake do mycorrhizal fungi especially improve?
Which nutrient uptake do mycorrhizal fungi especially improve?
Phosphorus
What is the rhizosphere?
What is the rhizosphere?
Active soil zone around plant roots
How does permanent grassland affect organic matter compared to continuous tillage?
How does permanent grassland affect organic matter compared to continuous tillage?
Maintains higher OM levels