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March 26, 2026NitrogenOpen Access

Does Drought Regulate DMPP Effectiveness in Alleviating Maize Manganese and Phosphorus Deficiencies in High-pH Soils?

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Authors

MEMathew Edung EtaboPRPablo Lacerda RibeiroBPBritta Pitann

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Overview

Experiments show DMPP alleviates Mn2+ and P deficiencies in maize, depending on drought and soil type, suggesting specific strategies for farmers.

Key Points

  • This study aims to investigate how drought affects the effectiveness of DMPP in alleviating manganese and phosphorus deficiencies in maize grown in high pH soils.
  • Grew maize plants in a greenhouse under varied soil textures (sand and silt loam) and moisture conditions (sufficient and drought)
  • Applied DMPP to assess its impacts on nutrient availability and plant biomass
  • Measured bulk and rhizosphere soil pH, Mn2+ availability, biomass yield, and micronutrient concentrations
  • DMPP increased shoot biomass production by 60% in silt loam under drought conditions
  • Mn2+ and P shoot concentrations increased by 38% and 21%, respectively, in silt loam soil under drought
  • DMPP did not improve biomass production or nutrient concentration in sand soil under drought conditions

Cite This Study

Etabo et al. (2026) studied this question.

synapsesocial.com/papers/69c4cc85fdc3bde448917cb6https://doi.org/10.3390/nitrogen7020034
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Also Consider

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