Agriculture & Biology
biochar
87%
carbon
24%
carbon dioxide
28%
carbon footprint
100%
carbon sinks
29%
case studies
62%
corn straw
49%
crop production
11%
cropping systems
69%
electric power
15%
energy
14%
energy costs
13%
fertilizers
9%
gases
9%
global warming
12%
greenhouse gas emissions
13%
input costs
16%
life cycle assessment
15%
methodology
3%
pesticides
10%
pyrolysis
40%
rice
48%
soil
18%
soil carbon
29%
soil treatment
13%
Earth & Environmental Sciences
biochar
78%
carbon
20%
carbon footprint
86%
carbon sink
14%
cost
6%
crop production
13%
cropping practice
73%
effect
5%
energy
23%
fertilizer
10%
field experiment
10%
gas
6%
global warming
10%
greenhouse gas emissions
10%
life cycle
9%
maize
32%
need
6%
pesticide
10%
pyrolysis
32%
rice
64%
soil
10%
soil carbon
25%
soil emission
16%
soil gas
14%
straw
37%
Engineering & Materials Science
Carbon
55%
Carbon footprint
91%
Costs
4%
Crops
13%
Experiments
4%
Fertilizers
15%
Gas emissions
12%
Gases
6%
Global warming
13%
Greenhouse gases
12%
Life cycle
10%
Pesticides
16%
Pyrolysis
34%
Soils
57%
Straw
45%