Earth & Environmental Sciences
rhizobacterium
85%
antibiotic resistance
78%
plasmid
77%
alfalfa
52%
fixation
41%
arid land
27%
acetylene
24%
shoot
22%
fertilizer
18%
environmental conditions
16%
agriculture
15%
winter
12%
nitrogen
12%
summer
12%
sampling
11%
soil
9%
analysis
5%
Medicine & Life Sciences
Medicago sativa
100%
Sinorhizobium meliloti
98%
Microbial Drug Resistance
63%
Plasmids
51%
Nitrogen Fixation
49%
Acetylene
25%
Fertilizers
24%
Weights and Measures
20%
Agriculture
18%
Soil
17%
Nitrogen
15%
Weight Loss
13%
Agriculture & Biology
Ensifer meliloti
76%
antibiotic resistance
61%
plasmids
48%
Medicago sativa
44%
alfalfa
38%
acetylene reduction
27%
arid lands
22%
nitrogen fertilizers
19%
agriculture
15%
winter
13%
summer
13%
environmental factors
13%
shoots
13%
soil
10%
sampling
7%