Subject
agriculture
32
agronomy
58
ammonia
1
arsenic
1
barley
1
biological membrane
1
biological stress
2
breeding
3
carbon dioxide
1
climatic change
4
climatic impact
2
contamination
1
corn
1
crop
25
cultivated plant
2
developing country
1
dissolved organic matter (DOM)
1
drought
6
dynamics
1
ecology
1
emission
1
environmental balance
1
environmental impact
2
environmental impact assessment
1
environmental law
1
environmental policy
1
environmental protection
1
erosion
2
evaporation
2
evapotranspiration
1
fertilization
7
fertilizer
2
fishery
1
food
1
food production
4
forestry
2
global change
1
global warming
1
grain growth
1
greenhouse effect
1
greenhouse gas
8
groundwater
2
groundwater pollution
1
heat
1
humic substance
1
humus
1
infrared spectroscopy
3
international trade
1
irrigation
1
land use
1
more ...