Agriculture & Biology
saline sodic soils
100%
surface irrigation
90%
irrigation
50%
pipes
41%
soil
35%
filters
24%
subsurface flow
19%
Iran
16%
sugarcane
16%
infiltration (hydrology)
13%
furrows
13%
drainage
12%
crops
12%
fluid mechanics
12%
sediments
11%
transpiration
10%
silty clay soils
10%
exchangeable sodium
9%
overland flow
9%
irrigated farming
8%
furrow irrigation
8%
testing
7%
silt
7%
water conservation
7%
water requirement
6%
flooded conditions
6%
runoff
6%
water flow
6%
surface water
6%
irrigation systems
6%
simulation models
6%
clay
5%
plasticity
5%
sand
5%
Earth & Environmental Sciences
sodic soil
91%
saline soil
79%
irrigation
49%
pipe
33%
evaluation
30%
soil
29%
filter
14%
drain
13%
crop
13%
drainage
10%
subsurface flow
10%
transpiration
9%
synthetic material
9%
silty soil
9%
hydraulics
9%
siltation
8%
soil test
8%
silty clay
8%
perforation
8%
clay soil
7%
particle
7%
plasticity
6%
sediment
6%
furrow irrigation
6%
flow velocity
6%
silt
6%
waterlogging
5%
test
5%
sodium
5%
irrigation system
5%