Agriculture & Biology
soil
100%
topsoil
99%
organic carbon
97%
agricultural management
77%
plant available water
76%
long term experiments
74%
artificial intelligence
71%
Sub-Saharan Africa
67%
Tanzania
65%
water holding capacity
62%
World Reference Base for Soil Resources
61%
soil quality
61%
soil properties
60%
soil organic matter
56%
highlands
55%
rhizosphere
52%
carbon sinks
51%
bedrock
51%
prediction
47%
bulk density
46%
soil texture
42%
China
38%
cation exchange capacity
36%
aggregate stability
36%
no-tillage
32%
USDA
32%
Ethiopia
31%
soil organic carbon
29%
earthworms
28%
organic production
28%
soil fertility
27%
uncertainty
25%
governmental programs and projects
21%
good agricultural practices
20%
monitoring
16%
soil aggregates
14%
field capacity
13%
conventional tillage
12%
kriging
12%
national forests
11%
United Nations
11%
woody biomass
11%
land cover
11%
carbon
11%
pedotransfer functions
10%
soil carbon
10%
deforestation
10%
forest ecosystems
9%
confidence interval
9%
shrublands
9%
Earth & Environmental Sciences
topsoil
87%
long-term experiment
76%
soil
75%
agricultural management
74%
zero tillage
65%
soil quality
63%
rhizosphere
61%
aggregate stability
54%
management practice
54%
earthworm
49%
organic carbon
46%
Africa
45%
crop rotation
42%
Europe
41%
soil organic matter
40%
agriculture
36%
organic matter
34%
resource
33%
soil fertility
32%
soil property
24%
carbon
22%
monoculture
20%
bulk density
19%
water
18%
tillage
18%
monitoring
15%
indicator
15%
bushland
15%
effect
14%
field capacity
13%
program
13%
trend
12%
grassland ecosystem
12%
emission levels
12%
recommendation
11%
United Nations
11%
soil aggregate
10%
soil carbon
10%
crop
10%
kriging
10%
pest
9%
confidence interval
9%
soil horizon
9%
weed
9%
maize
9%
forest ecosystem
9%
deforestation
9%
soil layer
9%
woodland
9%
soil texture
9%