Agriculture & Biology
Sedum
85%
biosolids
78%
heavy metals
52%
Zea mays
49%
zinc
31%
land application
27%
hyperaccumulators
24%
agricultural productivity
24%
grain crops
20%
copper
15%
plant growth
14%
germination
14%
water content
13%
uptake mechanisms
13%
crops
10%
methodology
5%
Earth & Environmental Sciences
cropping practice
59%
biosolid
53%
heavy metal
43%
plant species
26%
zinc
24%
trial
23%
monoculture
17%
germination
17%
cereal
16%
effect
13%
water content
11%
crop
10%
copper
10%
productivity
10%
pollutant
8%
land
8%
resource
8%
cost
7%
Engineering & Materials Science
Biosolids
100%
Heavy metals
76%
Crops
43%
Zinc
42%
Water content
21%
Impurities
19%
Copper
16%
Productivity
15%
Recovery
13%
Costs
7%
Chemistry
Heavy Metal
49%
pH Value
12%
Application
9%