Lecture 8: Soil management Flashcards
1
Q
Issues
A
yield plateaus
soil degradation
2
Q
leys
A
temporary short-term pastures (grass/legume) for soil improvement
3
Q
benefits of leys
A
higher soil quality
better WHC
direct drilling preserves them
structure improved
aggregates better and more SOC
dry weight crops increase
increase root and shoot biomass
more earthworms with increased diversity
4
Q
aneic earthworms
A
deep, permenant burrows
water, deep root growth, SOM deeper
5
Q
endogeic earthworms
A
transient burrows, promote SOC, macroaggregation
casts formed
6
Q
epigeic
A
live in and process litter layer
