Subject
soil chemistry
soil microbiology
soil pollution
5
soil biology
4
soil protection
4
soil science
3
soil water
3
enzymatic reaction
2
enzyme activity
2
humic substance
2
humus
2
microbial degradation
2
pesticide residue
2
soil
2
soil acidity
2
soil physics
2
soil surface
2
agronomy
1
denitrification
1
drought
1
enzymatic analysis
1
enzyme production
1
enzyme reaction
1
microorganism
1
natural organic matter
1
nitrification
1
nitrogen fixation
1
organic matter
1
pesticide
1
porous material
1
retention
1
weed
1