Landbrug og biologi
agricultural colleges
17%
corn
50%
crops
25%
cultivars
9%
economics
10%
fertilizers
12%
flowering
11%
foliar application
87%
grain yield
64%
harvest index
17%
leaves
21%
nutrients
9%
nutrition
12%
Pakistan
14%
soil
8%
soil treatment
85%
sowing date
17%
uptake mechanisms
10%
vegetative growth
14%
Zea mays
66%
zinc
64%
zinc fertilizers
24%
Medicin og biovidenskab
Agriculture
23%
Economics
15%
Fertilizers
62%
Nutrients
17%
Pakistan
22%
Population
7%
Soil
87%
Zea mays
100%
Zinc
77%
Geo- og miljøvidenskab
agriculture
7%
crop
21%
cultivar
12%
economics
5%
effect
2%
fertilizer
17%
field experiment
8%
harvest
18%
index
5%
maize
71%
need
5%
nutrient
6%
nutrition
10%
parameter
3%
plant population
13%
soil
34%
sowing
12%
spray
29%
zinc
65%