Agriculture & Biology
animal manures
98%
crops
22%
decision making
10%
developing countries
10%
Ethiopia
11%
farm surveys
14%
farms
69%
fertilizers
7%
imports
10%
livestock
85%
livestock farming
13%
nutrients
62%
recycling
98%
rural areas
10%
social barriers
17%
soil fertility
9%
statistics
9%
sustainable development
11%
urban farming
17%
urbanization
11%
water pollution
12%
Earth & Environmental Sciences
allocation
9%
calculation
5%
crop
29%
decision making
7%
demand
6%
developing world
8%
distribution
3%
farm
88%
fertilizer
8%
import
10%
land
5%
livestock
98%
livestock farming
12%
manure
100%
nutrient
67%
recycling
80%
rural area
9%
savings
10%
soil fertility
11%
statistics
7%
sustainable development
8%
urbanization
8%
water pollution
10%