Earth & Environmental Sciences
acidification
17%
agriculture
15%
ash
15%
carbon
22%
carbon stock
17%
cattle
19%
compost
17%
drying
19%
effect
21%
fertilizer
40%
fractionation
15%
genotype
15%
leaching
24%
maize
22%
manure
34%
nitrogen
30%
nutrient
18%
nutrient uptake
21%
organic carbon
25%
organic waste
56%
phosphorus
91%
pig
17%
sewage sludge
45%
slurry
51%
soil
100%
soil fertility
16%
straw
25%
trial
15%
turnover
21%
wheat
42%
Agriculture & Biology
ash (inorganic matter)
15%
carbon
15%
corn
19%
Denmark
15%
fertilizers
28%
grasslands
16%
nutrient uptake
22%
nutrients
21%
organic wastes
34%
Penicillium
20%
phosphorus
66%
root growth
20%
root hairs
17%
sewage sludge
58%
soil
83%
soil fertility
22%
soil organic carbon
17%
soil organic matter
21%
spring wheat
28%
straw
21%
uptake mechanisms
24%
wheat straw
16%