Soil Quality Flashcards
1
Q
Factors affecting world food supply
A
1) natural resources available
2) technical and knowledge resources (infrastructure and management)
3) appropriate animal/plant varieties and management thereof
4) supply of production inputs
2
Q
Inherent quality
A
Soil’s natural ability to function; does not change easily
Ex: sandy soils drain faster than clayeybsoil
3
Q
Dynamic quality
A
Dependent on management
Ex: OM content, soil structure, water and nutrient holding capacity
4
Q
How to maintain good soil quality
A
Add OM, reduce tillage, manage fertilizers and pesticides, increase ground cover
