Agriculture & Biology
loess
100%
cropping systems
74%
plateaus
71%
China
50%
water
32%
crops
23%
buckwheat
5%
poverty
5%
water shortages
5%
meteorological data
5%
evapotranspiration
5%
arid zones
5%
food production
4%
food security
4%
statistics
4%
transpiration
4%
potatoes
3%
corn
3%
Earth & Environmental Sciences
cropping practice
78%
loess
74%
productivity
54%
province
50%
crop
31%
water
24%
sorghum
6%
hydrological modeling
5%
potato
5%
used water
5%
transpiration
5%
food production
5%
semiarid region
5%
poverty
5%
food security
5%
agricultural production
5%
county
4%
evapotranspiration
4%
maize
4%
statistics
3%
world
2%
Social Sciences
productivity
65%
water
61%
China
47%
food
6%
agricultural production
5%
agricultural product
4%
shortage
4%
statistics
3%
poverty
3%
Medicine & Life Sciences
China
64%
Water
52%
Sorghum
7%
Fagopyrum
7%
Solanum tuberosum
6%
Food Supply
5%
Zea mays
5%
Poverty
5%
Statistics
3%
Food
3%
Chemical Compounds
Food
56%
Green
54%
Reaction Yield
16%