Agriculture & Biology
gypsum
100%
leachates
98%
carbon
54%
soil
42%
crop residues
22%
Epiaqualfs
20%
Fragiudalfs
20%
glucose
18%
water
12%
silt
11%
greenhouse experimentation
10%
trace elements
10%
water quality
10%
managers
10%
soil types
10%
drinking water
10%
clay
9%
soil quality
9%
heavy metals
9%
farmers
7%
nutrients
6%
sampling
3%
Earth & Environmental Sciences
gypsum
79%
leachate
77%
carbon
47%
soil
35%
glucose
28%
crop residue
25%
water cost
14%
loam
11%
used water
11%
soil quality
11%
rate
10%
soil type
9%
silt
8%
drinking water
7%
trace element
7%
heavy metal
7%
water quality
6%
nutrient
6%
pollutant
6%
land
5%
cost
5%
water
3%