Landbrug og biologi
basins
43%
carbon
3%
carbon sinks
88%
conservation practices
7%
conventional tillage
5%
crop residues
5%
farm surveys
7%
farming systems
60%
farms
49%
fertilizers
4%
hands
62%
minimum tillage
7%
phosphorus
3%
small farms
18%
soil
5%
soil carbon
89%
soil fertility
4%
soil organic carbon
5%
soil organic matter
4%
soil quality
68%
Zambia
93%
Medicin og biovidenskab
Agriculture
85%
Carbon
73%
Farms
84%
Fertility
4%
Fertilizers
8%
Hand
56%
Phosphorus
5%
Practice Management
6%
Soil
80%
Zambia
100%
Geo- og miljøvidenskab
basin
23%
carbon
2%
carbon stock
79%
crop residue
6%
crop rotation
6%
effect
17%
farm
62%
fertilizer
4%
management practice
4%
organic carbon
4%
parameter
5%
phosphorus
3%
province
6%
smallholder
19%
soil
6%
soil carbon
75%
soil fertility
5%
soil organic matter
5%
soil quality
78%
tillage
11%