Agriculture & Biology
crop coefficient
74%
evapotranspiration
58%
nitrogen fertilizers
49%
heat sums
44%
growing season
44%
irrigation
43%
corn
34%
water stress
34%
alfalfa
25%
water
22%
crops
21%
grasses
20%
developmental stages
19%
nutrient deficiencies
15%
water treatment
14%
clay
12%
water uptake
12%
Zea mays
11%
plant growth
9%
nutrients
8%
nitrogen
8%
methodology
3%
Earth & Environmental Sciences
evapotranspiration
49%
maize
49%
fertilizer
47%
irrigation
42%
growing season
40%
crop
39%
water stress
37%
nitrogen
32%
alfalfa
27%
grass
18%
rate
14%
nutrient
14%
water uptake
12%
water use
10%
water
10%
harvest
9%
water treatment
9%
clay
7%
laboratory
5%
trend
5%
product
5%
effect
2%
method
2%
Medicine & Life Sciences
Fertilizers
85%
Zea mays
68%
Nitrogen
54%
Water
36%
Dehydration
35%
Medicago sativa
34%
Poaceae
27%
Nutrients
18%
Growth
16%
Clay
15%
Water Purification
14%
Engineering & Materials Science
Nitrogen fertilizers
100%
Evapotranspiration
92%
Irrigation
65%
Crops
61%
Water
29%
Nutrients
17%
Water treatment
8%
Clay
6%
Nitrogen
6%