Agriculture & Biology
subsoil
98%
biochar
97%
root growth
71%
water
33%
straw
32%
spring barley
21%
irrigation and drainage
13%
soil water retention
13%
wilting point
13%
nutrient retention
12%
gasification
12%
application coverage
11%
bioenergy
9%
pyrolysis
9%
topsoil
9%
sandy soils
9%
hardwood
9%
Hordeum vulgare
9%
crop yield
8%
grain yield
7%
barley
7%
water content
6%
soil
4%
temperature
3%
Earth & Environmental Sciences
water retention
87%
biochar
86%
subsoil
84%
straw
36%
barley
31%
wilting
12%
bioenergy
10%
soil column
9%
crop yield
9%
gasification
9%
sandy soil
9%
topsoil
8%
pyrolysis
8%
moisture content
7%
incorporation
7%
penetration
7%
soil water
7%
irrigation
6%
drainage
6%
rate
5%
nutrient
5%
in situ
5%
effect
2%
Engineering & Materials Science
Straw
100%
Soils
47%
Water
44%
Springs (water)
33%
Hardwoods
28%
Nutrients
25%
Irrigation
24%
Crops
22%
Drainage
21%
Gasification
20%
Pyrolysis
19%
Moisture
17%
Temperature
8%
Chemical Compounds
Soil
68%
Irrigation
40%
Reaction Yield
33%
Gasification
31%
Nutrient
28%
Pyrolysis
18%
Column Like Crystal
16%
Amount
11%
Surface
8%