Agriculture & Biology
climate change
60%
agriculture
53%
production technology
36%
soil carbon
34%
greenhouse gases
33%
carbon dioxide
33%
carbon sequestration
33%
greenhouse gas emissions
32%
soil water
24%
economics
19%
nitrogen cycle
18%
livestock feeds
18%
land use change
17%
soil erosion
17%
arable soils
16%
biorefining
16%
nitrous oxide
16%
biocompatible materials
16%
biogeochemical cycles
16%
nutrient use efficiency
16%
bioenergy
15%
microclimate
15%
crop residues
15%
agroecosystems
15%
water holding capacity
14%
soil nutrients
14%
soil properties
14%
food production
14%
agricultural land
14%
environmental impact
14%
leaching
13%
methane
13%
long term effects
13%
biofuels
13%
feedstocks
13%
linkage (genetics)
12%
farming systems
11%
temperature
11%
climate
11%
rain
11%
phosphorus
10%
carbon
9%
nitrogen
8%
crops
7%
Medicine & Life Sciences
Climate Change
100%
Agriculture
83%
Soil
77%
Greenhouse Gases
71%
Carbon
20%
Nitrogen
20%
Nitrogen Cycle
19%
Microclimate
16%
Manure
16%
Economics
15%
Carbon Cycle
15%
Temperature
14%
Biofuels
14%
Methane
14%
Costs and Cost Analysis
12%
Livestock
12%
Nitrous Oxide
12%
Climate
11%
Phosphorus
10%
Biocompatible Materials
10%
Nutrients
8%
Food
7%
Water
6%