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Aims Phosphorus (P) deficiency is a major constraint for rice production in the tropics. Field-specific P management is key for resource-limited farmers to increase yields with minimal inputs. We used soil P fractionation analysis to identify the relevant factors controlling P uptake and the responses to P fertilization of rice in flooded and highly weathered soils. Methods Phytometric pot-based...
In the southeastern-forest region of Madagascar, the year-around anaerobic condition of most lowlands favors soil organic matter (SOM) accumulation, while the inherently nutrient-poor soils limit rice yields. Accelerating decomposition of the accumulated SOM through the soil surface drainage before transplanting is a conceivable approach to improve rice production. However, the effect of soil drying...
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