Agriculture & Biology
crop residues
89%
mineralization
80%
soil organic matter
77%
soil
41%
rhizodeposition
36%
barley
32%
genotype
29%
Lolium
25%
root residues
25%
uptake mechanisms
10%
substitution lines
10%
plant residues
10%
degradation
9%
agricultural soils
9%
biogeochemical cycles
9%
plant nutrition
9%
microbial biomass
8%
crops
8%
microbial activity
8%
additive effect
8%
nutrient uptake
7%
particle size
7%
dates (fruit)
6%
planting
6%
microorganisms
5%
carbon
5%
nutrients
4%
nitrogen
4%
sampling
2%
Earth & Environmental Sciences
crop residue
100%
soil organic matter
77%
mineralization
61%
genotype
59%
barley
53%
soil
34%
effect
19%
crop
13%
decomposition
13%
plant residue
12%
nutrient uptake
11%
nutrient cycling
10%
chromosome
9%
agricultural soil
9%
nutrition
9%
planting
8%
microbial activity
8%
turnover
8%
substitution
8%
soil surface
7%
material
7%
particle size
6%
nutrient
5%
biomass
5%
nitrogen
5%
sampling
5%
carbon
5%
rate
2%
Medicine & Life Sciences
Soil
88%
Hordeum
30%
Lolium
21%
Genotype
18%
Nutrients
7%
Carbon Cycle
6%
Biomass
5%
Particle Size
4%
Nitrogen
4%
Chromosomes
3%