Agriculture & Biology
Ethiopia
72%
soil organic matter
64%
villages
63%
case studies
58%
agricultural soils
21%
crop residues
21%
animal manures
18%
cooking
18%
energy
17%
animal manure management
13%
composted manure
13%
soil degradation
12%
cattle manure
11%
natural resources
10%
agricultural land
9%
long term effects
9%
conservation areas
9%
grazing
8%
methodology
2%
Earth & Environmental Sciences
soil organic matter
65%
village
58%
manure
43%
trend
34%
crop residue
27%
agricultural land
27%
agricultural practice
24%
energy source
22%
soil degradation
13%
long-term effect
12%
energy saving
12%
compost
11%
agricultural production
11%
cattle
11%
cropping practice
11%
protected area
10%
grazing
10%
soil
9%
natural resource
9%
restoration
8%
organic matter
7%
removal
6%
Engineering & Materials Science
Biological materials
90%
Soils
53%
Manures
42%
Cooking
17%
Crops
16%
Natural resources
9%
Restoration
7%
Energy conservation
6%
Availability
5%
Degradation
5%
Recovery
5%
Chemical Compounds
Soil Organic Matter
100%
Soil
29%
Energy
16%
Compost
15%
Organic Matter
12%
Fuel
9%
Pressure
6%