Agriculture & Biology
systematic review
81%
biochar
74%
biogeochemical cycles
69%
crop yield
55%
soil
31%
cation exchange capacity
25%
nutrient use efficiency
23%
application rate
20%
soil pH
20%
agricultural management
13%
soil minerals
13%
nutrients
12%
peers
12%
sustainable development
11%
sandy soils
11%
engines
10%
nutrient availability
10%
total nitrogen
10%
soil properties
10%
leaching
10%
crop production
9%
potassium
7%
minerals
7%
screening
7%
nitrogen
6%
methodology
2%
Earth & Environmental Sciences
nutrient cycle
82%
crop yield
66%
biochar
66%
sandy soil
63%
soil
26%
cation exchange capacity
18%
continent
14%
nutrient use efficiency
14%
dietary mineral
12%
agricultural management
10%
nitrogen
10%
nutrient availability
10%
nutrient cycling
9%
crop production
9%
South America
8%
engine
8%
soil property
7%
screening
7%
potassium
7%
leaching
6%
effect
6%
productivity
6%
rate
5%
nutrient
5%
mineral
4%
method
1%
Engineering & Materials Science
Nutrients
77%
Crops
69%
Soils
48%
Positive ions
14%
Minerals
11%
Nitrogen
10%
Potassium
6%
Leaching
6%
Search engines
5%
Screening
5%
Websites
4%
Productivity
4%
Availability
4%
Internet
3%
Chemistry
Biogeochemical Cycle
100%
Nutrient
30%
Reaction Yield
25%
Cation Exchange
10%
Heterogeneity
10%
Mineral
9%
Nitrogen
6%
Size Effect
6%
Leaching
5%
pH Value
4%
Application
3%