Agriculture & Biology
cropping systems
84%
soil quality
82%
Nematoda
69%
soil organic matter
50%
particulate organic matter
49%
soil resources
46%
leys
45%
parasitic plants
44%
tillage
34%
growing season
28%
fluorescein diacetate hydrolysis
27%
soil biology
26%
soil food webs
26%
dairy manure
23%
food webs
19%
cover crops
19%
crop residues
19%
crops
18%
carbon nitrogen ratio
18%
microbial activity
18%
organic production
18%
nutrient availability
18%
soil
17%
community structure
16%
soil fertility
16%
root growth
15%
soil sampling
15%
farming systems
14%
vegetables
14%
degradation
10%
testing
6%
Earth & Environmental Sciences
cropping practice
88%
parasitic plant
59%
indicator
52%
soil resource
43%
particulate organic matter
40%
soil
37%
tillage
37%
soil organic matter
33%
food web
33%
root crop
28%
index
27%
organic farming
24%
crop residue
21%
nutrient availability
20%
vegetable
18%
manure
17%
recommendation
13%
crop
12%
decomposition
12%
disturbance
12%
health
12%
organic matter
11%
transition
11%
effect
4%
Medicine & Life Sciences
Soil
96%
Food Chain
24%
Particulate Matter
21%
Organic Agriculture
16%
Manure
14%
diacetylfluorescein
13%
Health Care Quality Indicators
13%
Vegetables
8%
Fertility
8%
Hydrolysis
8%
Nutrients
7%
Growth
4%