Mismatch between soil nutrient deficiencies and fertilizer applications: Implications for yield responses in Ethiopia

Lack of accurate information about soil nutrient deficiencies coupled with limited access to appropriate fertilizers could lead mismatch between (requirements) and fertilizer applications. Such anomalies mismatches are likely have important implications for agricultural productivity. In this article we use experimental (spectral analysis) data from Ethiopia examine farmers’ response its yield responses. We find that macronutrient (nitrogen phosphorus) is not always consistent agronomic recommendations. For example, farmers in our sample applying nitrogen soils lacking phosphorus, potentially due lack on or rural markets. On the other hand, respond perceivably poor-quality acidic by higher amount phosphorus fertilizers. further show such applications yield-reducing. Those matching their application enjoy additional gains. Marginal associated (phosphorus) increases deficiency soils. Similarly, yield-enhancing. These findings suggest may explain heterogeneities marginal returns chemical observed low adoption rates sub-Saharan Africa.