Agriculture & Biology
subhumid zones
100%
irrigation requirement
92%
corn
40%
microirrigation
35%
China
25%
agroclimatology
23%
water stress
19%
irrigation rates
18%
filling period
17%
developmental stages
17%
soil water content
16%
water distribution
9%
irrigation systems
8%
heat sums
8%
irrigation water
8%
Zea mays
6%
growing season
6%
dates (fruit)
6%
grain yield
6%
irrigation
6%
planting
6%
rain
6%
crops
4%
seeds
4%
soil
4%
leaves
3%
water
3%
temperature
3%
Earth & Environmental Sciences
maize
57%
irrigation
49%
drip irrigation
42%
climate
34%
water stress
27%
province
20%
climatic zone
19%
soil water
13%
water content
12%
irrigation system
9%
planting
7%
seasonality
7%
growing season
7%
harvest
7%
crop
5%
distribution
5%
rainfall
5%
loss
4%
index
4%
simulation
3%
soil
3%
temperature
3%
water
2%
Medicine & Life Sciences
Zea mays
80%
Climate
74%
Soil
23%
Dehydration
23%
Water
14%
Growth
10%
China
5%
Temperature
5%
Chemical Compounds
Irrigation
96%
Soil
27%
Amount
9%
Reaction Yield
8%
Simulation
6%
Time
3%