The potential contamination of groundwater with pathogens
Research gap analysis derived from 3 agriculture papers in our local library.
The gap
One of the challenges is the potential contamination of groundwater with pathogens. Another challenge is the need to ensure the safe management of human excreta. The study also faces the challenge of scaling up the use of human excreta-derived fertilizers to promote sustainable food systems.
Evidence profile
Sourced from the stated research gap and future-work section and stated challenges of the source papers, classified as general, drawn from work published between 2024 and 2025, spanning 3 journals. Those papers have been cited 15 times in total.
Research trend
Established — well-defined area with open sub-problems.
Supporting evidence — 4 representative gaps
- Waste-Derived Fertilizers: Conversion Technologies, Circular Bioeconomy Perspectives and Agronomic Value (2025) · Agronomy · cited 12× · doi
There is a need for further efforts in standardization, safety assurance, and farmer engagement to implement waste-based fertilization strategies. The paper identifies gaps in the current regulatory frameworks and commercialization challenges for waste-derived fertilizers. There is a lack of integrated processes for nutrient recovery from waste streams.
generalstated research gapKeywords: there need further efforts standardization safety assurance farmer - Closing the loop: crop yield response and soil health implications of human excreta-derived fertilizer application in dryland agriculture (2025) · Frontiers in Sustainable Food Systems · cited 1× · doi
Investigating the long-term effects of excreta-derived amendments on soil health and crop productivity. Exploring the potential environmental impacts of excreta-derived amendments, such as greenhouse gas emissions and soil pollution. Evaluating the economic viability of using excreta-derived amendments in dryland agriculture
generalfuture-work sectionevidence 5/5Keywords: investigating long-term effects excreta-derived amendments soil health crop - Closing the loop: crop yield response and soil health implications of human excreta-derived fertilizer application in dryland agriculture (2025) · Frontiers in Sustainable Food Systems · cited 1× · doi
One of the challenges is the potential contamination of groundwater with pathogens. Another challenge is the need to ensure the safe management of human excreta. The study also faces the challenge of scaling up the use of human excreta-derived fertilizers to promote sustainable food systems.
generalstated challengesevidence 5/5Keywords: one challenges potential contamination groundwater pathogens another challenge - Nitrogen and phosphorus mineralization dynamics in human excreta-derived fertilizers (2024) · Frontiers in Agronomy · cited 1× · doi
The paper identifies a gap in the understanding of the agronomic relevance of human-excreta derived fertilizers. There is a lack of widespread emphasis on resource recovery from human excreta. The increasing scarcity, climate change impact, and price volatility of mineral fertilizers have increased interest in alternative approaches to fertilization, but more research is needed.
generalstated research gapevidence 4/5Keywords: paper identifies gap understanding agronomic relevance human-excreta derived
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