Earth & Environmental Sciences
agricultural land
81%
watershed
75%
land use
68%
lake
60%
agriculture
49%
cropping practice
34%
crop
32%
stoichiometry
25%
animal
23%
nutrient
14%
agricultural practice
12%
soybean
12%
farming system
12%
open ocean
11%
headwater
11%
multiple regression
11%
pasture
11%
eutrophication
10%
maize
10%
algal bloom
10%
regression analysis
9%
phosphorus
8%
nitrogen
6%
test
4%
water
3%
Agriculture & Biology
land use
100%
lakes
84%
agriculture
57%
agricultural watersheds
42%
stoichiometry
28%
crops
27%
regression analysis
22%
animals
16%
nutrients
15%
eutrophication
15%
oceans
13%
pastures
10%
phosphorus
9%
soybeans
9%
corn
8%
nitrogen
7%
testing
5%