Agriculture & Biology
greenhouse gases
96%
greenhouse gas emissions
92%
agricultural soils
92%
soil properties
82%
nitrous oxide
70%
water holding capacity
42%
soil
41%
carbon dioxide
32%
clay minerals
29%
grassland soils
28%
soil minerals
26%
soil texture
24%
arable soils
23%
ammonium nitrate
23%
headspace analysis
22%
organic carbon
22%
carbon nitrogen ratio
21%
mineral fertilizers
21%
total nitrogen
20%
methane
20%
nitrogen content
19%
fertilizer application
19%
clay
19%
regression analysis
17%
gases
15%
water content
14%
environmental factors
13%
sampling
7%
Earth & Environmental Sciences
soil gas
100%
agricultural soil
84%
greenhouse gas emissions
72%
soil property
72%
greenhouse gas
47%
soil
35%
effect
19%
inorganic fertilizer
18%
grassland soil
17%
fertilizer application
16%
ammonium nitrate
15%
soil texture
14%
multiple regression
13%
clay mineral
12%
moisture content
11%
environmental factor
11%
agricultural land
10%
organic carbon
10%
clay
9%
water
8%
nitrogen
8%
sampling
7%
mineral
7%
gas
6%
modeling
5%
Engineering & Materials Science
Gas emissions
83%
Greenhouse gases
83%
Soils
64%
Fluxes
33%
Organic carbon
12%
Clay minerals
11%
Fertilizers
10%
Nitrates
10%
Water
8%
Minerals
8%
Clay
8%
Nitrogen
7%
Moisture
7%
Textures
6%
Sampling
5%
Chemical Compounds
Soil
69%
Greenhouse Gas
47%
Soil Texture
17%
Fertilizer
11%
Clay Mineral
10%
Ammonium Nitrate
10%
Organic Carbon
10%
Sampling
7%
Mineral
7%
Nitrogen
5%