Engineering & Materials Science
Groundwater
100%
Leaching
85%
Nitrogen
78%
Sand
75%
Urea
51%
Soils
33%
Economics
27%
Fertilizers
17%
Potable water
17%
Water quality
17%
Drainage
15%
Contamination
13%
Polymers
10%
Earth & Environmental Sciences
maize
75%
sand
51%
groundwater
51%
nitrogen
50%
leaching
40%
soybean
34%
urea
32%
rate
20%
economics
18%
best management practice
12%
sandy loam
12%
sandy soil
10%
quality standard
10%
cropping practice
10%
fertilizer
9%
polymer
8%
drinking water
8%
drainage
7%
contamination
7%
water quality
7%
soil
4%
Chemical Compounds
Groundwater
91%
Leaching
63%
Nitrogen
51%
Soil
35%
Urea
33%
Percent Reduction
33%
Application
26%
Fertilizer
17%
Drinking Water
14%
Reduction
6%
Reaction Yield
5%