Subject
agronomy
72
soil
28
agriculture
26
crop
26
soil science
11
soil chemistry
10
soil microbiology
9
soil water
8
fertilization
7
greenhouse gas
7
mathematical model
7
drought
6
nitrogen
6
nutrient
6
soil biology
6
soil physics
6
hydrology
5
contamination
4
food production
4
groundwater
4
microbial ecology
4
phosphorus
4
productivity
4
rice
4
soil pollution
4
weed
4
breeding
3
ecological microbiology
3
food
3
infrared spectroscopy
3
nanoparticle
3
organic matter
3
organic pollutant
3
pesticide
3
remediation
3
transgenic plant
3
NMR (nuclear magnetic resonance)
2
Python (programming language)
2
SQL (database query language)
2
biodegradation
2
biogeochemical cycle
2
biosphere
2
climatic change
2
computer simulation
2
environmental chemistry
2
environmental impact
2
evaporation
2
evapotranspiration
2
fertilizer
2
flow measurement
2
more ...