Earth & Environmental Sciences
agricultural practice
14%
alkalinization
10%
allocation
5%
alluvial deposit
13%
alluvial plain
38%
breeding
5%
correspondence analysis
29%
crop
31%
crop production
7%
cultivar
33%
demand
8%
diagram
5%
effect
6%
estuary
5%
fertilizer
10%
fold
11%
foodstuff
6%
gas exchange
30%
genotype
17%
groundwater
16%
irrigation
46%
leaching
5%
loss
7%
method
6%
natural resource
9%
nutrient
21%
paddy field
41%
plain
5%
protein
7%
rice
100%
river
12%
river basin
46%
salinity
28%
salinization
7%
selenate
37%
selenite
49%
selenium
59%
sodium
14%
soil
14%
soil damage
10%
soil fertility
7%
staple food
7%
sustainability
13%
tissue
19%
tributary
10%
twentieth century
7%
water
17%
water demand
6%
water management
5%
water quality
35%
Agriculture & Biology
agriculture
6%
alluvial plains
43%
basins
24%
biofortification
40%
bran
5%
climate change
22%
crop yield
24%
crops
12%
cultivars
15%
dosage
5%
drought
21%
dry season
8%
dryers
19%
farmers
6%
gas exchange
25%
genotype
9%
leaves
11%
nutrient deficiencies
5%
nutrients
16%
Oryza sativa
47%
oscillation
9%
paddies
23%
Poaceae
27%
Portugal
9%
rice
53%
rivers
21%
selenates
22%
selenites
33%
selenium
52%
sodium selenate
14%
sodium selenite
12%
spraying
5%
staple foods
6%
tissues
12%
water shortages
10%
weather
7%
wet season
8%