Table 2 Soil fertility management scenarios used in the ex-ante analysis
From: Good soil management can reduce dietary zinc deficiency in Zimbabwe
Scenario | Description of scenario and soil fertility management practices | Proportions of farmers using different soil fertility management practices | Weighted average grain Zn | Weighted average grain yield |
|---|---|---|---|---|
mg kg−1 | kg ha−1 | |||
1 | Current practice | 15:43:42 (0 N:Mineral N:Mineral N + Organic N) | 16.6 | 1119 |
2 | Farmers who were applying no fertilizers start to apply mineral NPK | 0:58:42 (0 N:Mineral N:Mineral N + Organic N) | 16.8 | 1204 |
3 | All farmers apply mineral NPK and organic N | 0:0:100 (0 N:Mineral N:Mineral N + Organic N) | 19.3 | 1501 |
4 | All farmers apply mineral NPK + *soil Zn | Blanket adoption | 25.8 | 2100 |
5 | All farmers apply cattle manure + mineral NPK + soil Zn | Blanket adoption | 28.0 | 3000 |
6 | All farmers apply woodland leaf litter + mineral NPK + soil Zn | Blanket adoption | 32.4 | 3400 |