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Updated: Feb 3, 2026

Establishing Pollination Requirements in Japanese Plum by Phenological Monitoring, Hand Pollinations, Fluorescence Microscopy and Molecular Genotyping
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Crop fertilization affects pollination service provision - Common bean as a case study.

Davi de L Ramos1, Mercedes M C Bustamante1, Felipe D da Silva E Silva2,3

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Summary

Ecological intensification boosts crop yield by supporting pollinators, especially with low nitrogen fertilizer. Landscape management also enhances pollinator and beneficial insect populations for sustainable agriculture.

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Area of Science:

  • Agricultural Ecology
  • Conservation Biology
  • Ecosystem Services

Background:

  • Increasing demand for insect-pollinated crops contrasts with conventional agriculture's reliance on fertilizers, potentially harming biodiversity in nutrient-poor hotspots.
  • Ecological intensification, using ecosystem services like pollination, offers an alternative to conventional farming practices.

Purpose of the Study:

  • To investigate the interactive effects of fertilization and ecological intensification on crop yield in the Brazilian savannas.
  • To assess how nitrogen fertilizer input and landscape management influence pollinator effectiveness and biodiversity.

Main Methods:

  • Field study focusing on common bean (Phaseolus vulgaris L.) in the Brazilian savannas, a nitrogen-demanding crop.
  • Examined varying nitrogen fertilization levels and proximity to natural vegetation.
  • Monitored crop yield, pollinator abundance and diversity, and biocontrol agent populations.

Main Results:

  • Positive impacts of native pollinators on common bean yield were greatest under low nitrogen fertilization (≤72 kg ha-1).
  • Landscape management, including minimizing isolation and maximizing natural vegetation cover within 500m, increased pollinator and biocontrol agent richness.
  • Synergistic effects suggest a balance between chemical inputs and landscape management enhances land productivity.

Conclusions:

  • Ecological intensification, balancing fertilizer use with landscape management, is a viable strategy for common bean production in Brazil and globally.
  • Maintaining natural vegetation near croplands supports biodiversity and ecosystem services, crucial for sustainable agriculture.
  • Optimizing agricultural practices can enhance both crop productivity and local biodiversity, even in sensitive ecosystems.