Agriculture & Biology
Sahel
77%
nutrient use efficiency
65%
irrigation management
61%
nitrogen fertilizers
52%
drying
45%
rice
38%
Senegal
30%
soil matric potential
23%
flood irrigation
22%
river valleys
20%
irrigation
19%
water
17%
valleys
15%
lowlands
7%
growing season
6%
rivers
6%
soil
4%
Earth & Environmental Sciences
rice
51%
fertilizer
50%
drying
48%
irrigation
44%
nitrogen
34%
water saving
29%
wetting
24%
valley
23%
matric potential
22%
paddy field
17%
effect
13%
flooding
13%
river
12%
soil
10%
water use
7%
growing season
7%
field experiment
7%
sustainability
6%
productivity
5%
water
5%
comparison
3%
rate
2%
Medicine & Life Sciences
Fertilizers
91%
Oryza
69%
Nitrogen
57%
Senegal
29%
Water
29%
Rivers
26%
Soil
23%
Technology
4%
Social Sciences
irrigation
71%
efficiency
41%
regime
41%
Senegal
35%
water
30%
river
27%
Irrigation water
15%
Water use
13%
productivity
8%
sustainability
7%
experiment
5%
management
4%
performance
4%
Chemical Compounds
Nitrogen Fertilizer
100%
Irrigation
87%
Nitrogen
35%
Soil
24%
Reaction Yield
23%
Application
3%