Agriculture & Biology
ash (inorganic matter)
81%
alfalfa
74%
stems
50%
corn
50%
soil
40%
liming
21%
fertilizers
13%
electricity generation
13%
gasification
11%
economic sustainability
10%
bioenergy
9%
acid soils
9%
Medicago sativa
9%
trace elements
8%
soil pH
8%
clay
8%
byproducts
8%
feedstocks
8%
sand
7%
Zea mays
7%
salinity
7%
metals
6%
phosphorus
6%
greenhouses
6%
biomass
5%
energy
5%
Earth & Environmental Sciences
alfalfa
100%
stem
72%
maize
71%
ash
65%
soil
34%
liming
22%
fertilizer
15%
economic viability
11%
acid soil
10%
electricity generation
10%
gasification
9%
byproduct
7%
sound
7%
trace element
6%
salinity
6%
rate
5%
sand
5%
biomass
5%
metal
5%
energy
4%