The challenge of reducing Cd contamination in farmland soil

The gap

Evidence profile

Sourced from the conclusions and abstract and stated challenges and stated research gap of the source papers, classified as general, drawn from work published between 2025 and 2026, spanning 5 journals. Those papers have been cited 13 times in total.

Supporting evidence — 6 representative gaps

• Intermittent Irrigation Outweighs the Methanogenic Stimulation of Potassium Fertilization in Rice Paddies (2026) · Agronomy · doi

  Paddy field water and potassium management profoundly regulate soil microenvi- ronment, carbon dynamics and GHG emissions, while comprehensive trade-off analysis among yield, ecological benefit and environmental risk remains insufficient in previous studies.

  generalconclusions
  Keywords: paddy field water potassium management profoundly regulate soil microenvi ronment carbon dynamics emissions comprehensive trade
• Microplastics in rice-based farming systems and their connection to plastic waste management in the Chicoral district of Espinal-Tolima (2025) · Chemosphere · cited 7× · doi

  Our results suggested that MPs contamination in rice crop soils at Chicoral is influenced by irrigation water transport and improper plastic waste management, highlighting the need for further research on their effects on agricultural systems.

  generalabstract
  Keywords: contamination rice crop soils chicoral influenced irrigation water transport improper plastic waste management highlighting need
• Effects of intercropping system on phytoremediation of cadmium contaminated farmland soil in the central Hanjiang River Basin (2025) · Frontiers in Sustainable Food Systems · cited 1× · doi

  The challenge of reducing Cd contamination in farmland soil. The difficulty of understanding the effects of intercropping systems on Cd removal from soil. The need to develop effective phytoremediation strategies using hyperaccumulators.

  generalstated challengesevidence 5/5
  Keywords: challenge reducing contamination farmland soil difficulty understanding effects
• Specific water management facilitated rice-based phytoremediation of cadmium contaminated paddy fields (2026) · Plant and Soil · doi

  The study identifies a gap in the understanding of the effects of water management on Cd uptake and accumulation in rice plants. Prior research has not fully explored the use of specific water management techniques to facilitate rice-based phytoremediation of cadmium contaminated paddy fields.

  generalstated research gapevidence 5/5
  Keywords: study identifies gap understanding effects water management uptake
• Specific water management facilitated rice-based phytoremediation of cadmium contaminated paddy fields (2026) · Plant and Soil · doi

  The study identifies the challenge of Cd contamination in paddy soils as a significant environmental challenge. The research highlights the need to develop effective water management practices to reduce Cd contamination in paddy fields. The study notes the difficulty in determining the optimal water management practices for reducing Cd contamination in paddy fields.

  generalstated challengesevidence 5/5
  Keywords: study identifies challenge contamination paddy soils significant environmental
• Perspectives on machine learning: Predicting the combined effects and strategies of water management and biochar treatment on soil Cd activity and Cd accumulation in rice (2025) · Agricultural Water Management · cited 5× · doi

  Biochar passivation is a commonly used method for remediating Cd contamination in soils; however, under different water management conditions, the appropriate Cd concentration range for biochar remediation in Cd-contaminated soil remains to be investigated.

  generalabstractevidence 4/5
  Keywords: biochar passivation commonly used remediating contamination soils different water management conditions appropriate concentration range remediation

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