Agriculture & Biology
woody biomass
100%
energy crops
84%
bacterial communities
46%
grasslands
39%
soil
38%
fungal communities
34%
willows
33%
Populus
30%
microbial communities
28%
community structure
28%
plantations
25%
nitrates
25%
Nitrospirae
25%
history
23%
hybrid poplars
19%
land use change
18%
Salix
18%
soil nutrients
15%
biofuels
14%
feedstocks
13%
growing season
12%
climate
11%
vegetation
11%
ribosomal RNA
10%
summer
9%
fungi
9%
nitrogen
8%
genes
5%
Earth & Environmental Sciences
crop
54%
grassland
46%
biomass
45%
land
41%
plantation
34%
soil
32%
community structure
32%
microbial community
31%
nitrate
27%
new community
27%
biofuel production
23%
soil nitrogen
21%
history
21%
soil nutrient
20%
growing season
17%
fungus
16%
gene
14%
vegetation
11%
summer
10%
climate
10%
effect
4%
Engineering & Materials Science
Crops
83%
Biomass
68%
Soils
59%
Nitrates
31%
Fungi
17%
Nutrients
15%
Biofuels
14%
Feedstocks
12%
Genes
12%
Nitrogen
11%