Landbrug og biologi
autumn
51%
barley
41%
carbon nitrogen ratio
13%
Corn Belt region
18%
crops
27%
fertilizers
9%
grain yield
10%
growing season
10%
Hordeum vulgare
13%
leaching
37%
liquid manure
18%
mineralization
12%
nutrients
7%
planting
10%
plowing
75%
ridge tillage
20%
ridging
100%
soil
19%
soil transport processes
20%
straw
34%
stubble
46%
tillage
37%
uptake mechanisms
34%
winter
8%
Geo- og miljøvidenskab
autumn
54%
barley
60%
crop
27%
crop performance
21%
effect
3%
fertilizer
11%
field experiment
11%
growing season
11%
harvest
11%
immobilization
13%
incorporation
10%
leaching
29%
liquid manure
18%
maize
11%
mineralization
9%
nutrient
8%
planting
12%
plowing
79%
soil layer
37%
solute
11%
straw
39%
stubble
55%
tillage
40%
treatment residue
19%
winter
7%