Keyphrases
Soil Organic Carbon
82%
Struvite
59%
Soil Enzyme Activity
53%
Ammonium Phosphate
53%
Soil Organic Matter
49%
Agroecosystem
45%
Permanganate Oxidizable Carbon
40%
Phosphorus P
36%
Soil Properties
35%
Soil Organic Carbon Stock
35%
Fertilizer
34%
Soil Samples
32%
Phosphomonoesterase
32%
Soil Health
30%
Maize
29%
Enzyme Activity
29%
Soil Carbon
28%
Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS)
27%
Cover Crops
26%
Phosphorus Fertilizer
26%
Illinois
25%
US Midwest
25%
Agriculture
24%
Maize Yield
24%
P Pools
23%
Agricultural Fields
23%
Fourier Transform Infrared Spectroscopy (FT-IR)
23%
P Fertilizer
22%
Soil Phosphorus
22%
Soil Science
22%
Glucosidase
21%
Optimum pH
20%
Central U.S.
20%
Triple Superphosphate
19%
Nutrient Loss
19%
Residue Management
19%
Soil Lead
19%
P Removal
19%
P Cycling
19%
Soil pH
18%
Fertilization
18%
Crop Rotation
17%
Permanganate
17%
Soil Type
17%
Phosphate
17%
Organic Carbon
17%
Chronosequence
17%
Phosphate Fertilizer
17%
Soil Health Indicators
16%
Land Use
16%
Earth and Planetary Sciences
Soil Organic Carbon
100%
Struvite
51%
Soil Organic Matter
46%
Enzyme Activity
44%
Soil Health
44%
Agricultural Ecosystem
43%
Soil Enzyme Activity
42%
United States of America
42%
Organic Carbon
41%
Reflectance
39%
Soil Carbon
35%
Organic Matter
32%
Soil Property
28%
China
28%
United States
25%
Fourier Transform Infrared Spectroscopy
22%
Phosphate Rock
21%
Land Use
21%
Fractionation
20%
Biogeochemistry
20%
Ammonium Phosphate
20%
Liming
20%
Farmland
19%
Cover Crop
19%
Nutrient Loss
19%
Chronosequence
19%
Soil Analysis
17%
Parent Material
15%
Illinois
15%
Machine Learning
14%
Infrared Spectroscopy
14%
Soil Enzyme Assays
13%
FTIR Spectroscopy
13%
Inorganic Carbon
12%
Amazon
12%
Carbon Mineralization
12%
Anthropocene
12%
Soil Science
12%
Vertical Distribution
11%
Mississippi
10%
Kenya
10%
Agricultural Management
10%
California
9%
Pedon
9%
Environmental Impact Assessment
9%
Water Storage
9%
Soil Nitrogen
9%
Soil Fertility
9%
Water Body
9%
Denitrification
9%
Agricultural and Biological Sciences
Soil Organic Carbon
74%
Struvite
44%
Soil Health
43%
Agroecosystem
41%
Enzyme Activity
41%
Land Use
36%
Soil Property
35%
Soil Organic Matter
31%
Glucosidase
27%
Soil Enzyme Activity
27%
Phosphorus Fertilizers
26%
Soil Carbon
20%
Nanoparticle
19%
Carbon Sink
19%
Grains
18%
Enzymatic Hydrolysis
17%
Phosphodiesterase
17%
Spectroscopy
16%
Meta-Analysis
15%
Soil Enzyme Assays
14%
Aminopeptidase
14%
Nematode
14%
Fourier Transform Infrared Spectroscopy
14%
Agroforestry
14%
Soil Enzymes
13%
Oxisol
12%
Cover Crop
12%
Robusta Coffee
12%
Arbuscular Mycorrhiza
12%
Spring
12%
Hydrolase
12%
Enzyme Assay
12%
Microbial Biomass
11%
Soil Analysis
10%
Bioavailability
10%
A Horizons
9%
Chronosequence
9%
Watersheds
9%
Mollisol
8%
Conservation Agriculture
8%
Reduced Tillage
8%
Deforestation
8%
Microbial Biomass in Soil
8%
Cash Crop
8%
Inorganic Carbon
8%
Ammonium Sulfate
8%
Diammonium Phosphate
8%
Soil Science
8%
Polluted Soils
8%
Land Use Change
8%