Agriculture & Biology
Scandinavia
100%
spring barley
99%
agricultural soils
93%
Hordeum vulgare
83%
phosphorus
61%
soil
41%
methodology
15%
leaves
14%
Denmark
13%
Norway
12%
ammonium lactate
10%
grain yield
10%
ammonium acetate
8%
sodium bicarbonate
7%
testing
7%
soil temperature
6%
Finland
6%
Sweden
6%
interviews
6%
vegetative growth
5%
field experimentation
5%
tissues
5%
rhizosphere
5%
soil water
5%
farmers
4%
uptake mechanisms
4%
biomass
3%
nutrients
3%
extracts
3%
Earth & Environmental Sciences
barley
97%
agricultural soil
85%
phosphorus
59%
soil
35%
soil test
34%
extraction method
19%
overfertilization
15%
ammonium
15%
tissue
13%
plant production
11%
bicarbonate
9%
soil temperature
9%
soil layer
8%
acetate
8%
harvest
8%
field experiment
8%
method
8%
soil moisture
7%
trial
7%
sodium
6%
young
6%
nutrient
6%
biomass
5%
methodology
5%
resource
5%
experiment
3%
parameter
3%