Agriculture & Biology
root zone drying
100%
deficit irrigation
68%
irrigation management
57%
wheat
56%
irrigation
52%
tomatoes
45%
water use efficiency
45%
biochar
40%
potatoes
39%
drought
38%
leaves
36%
nitrogen
29%
water stress
27%
soil
26%
grain yield
23%
stomatal conductance
23%
corn
23%
abscisic acid
23%
temperature
22%
flowering
21%
nutrient use efficiency
19%
water
19%
phosphorus
18%
mycorrhizae
18%
gas exchange
17%
heat stress
16%
mycorrhizal fungi
16%
uptake mechanisms
15%
plant-water relations
15%
Earth & Environmental Sciences
irrigation
35%
rhizosphere
26%
wheat
25%
nitrogen
24%
water use efficiency
23%
abscisic acid
21%
drying
21%
arbuscular mycorrhiza
20%
potato
20%
soil
18%
biochar
18%
maize
17%