The mechanisms underlying the effects of co-application

The gap

Evidence profile

Sourced from the future work and abstract and stated research gap and stated challenges and future-work section of the source papers, classified as general, drawn from work published between 2024 and 2026, spanning 6 journals. Those papers have been cited 382 times in total.

Supporting evidence — 8 representative gaps

• Soil salinization in agriculture: Mitigation and adaptation strategies combining nature-based solutions and bioengineering (2024) · iScience · cited 382× · doi

  Organic fertilizers ll OPEN ACCESS Using organic fertilizers offers an effective strategy for preserving soil organic carbon (SOC) levels and preventing soil salinization. Derived from natural sources like animal manure, compost, or cover crops, organic fertilizers deliver numerous benefits to soil health and fertility.65 By introducing organic matter into the soil, these fertilizers contribute to SOC enrichment. This organic matter serves as a carbon source that stimulates the activity of soil microorganisms, leading to the decomposition of organic materials. Consequently, this process releases essential nutrients into the soil, supporting plant growth while increasing SOC levels. By maintaining or augmenting SOC, organic fertilizers enhance soil structure and bolster water-holding capacity,66 effectively reducing the risk of soil salinization. Furthermore, organic fertilizers are vital in enhancing nutrient cycling and availability in the soil. The organic matter in these fertilizers acts as a reservoir of nutrients, slowly releasing them over time, thus reducing the likelihood of nutrient leaching and runoff.67 This efficient nutrient management helps maintain a balanced soil ecosystem and prevent the accumulation of salts, a major cause of soil salinization. Having said that ensuring a consistent and reliable supply of organic materials can be difficult due to factors such as availability, transportation, and cost. Second, determining the optimal application rates and timing of organic fertilizers demands a thorough understanding of soil characteristics and crop requirements.

  generalfuture workevidence 5/5
  Keywords: organic soil fertilizers nutrient salinization matter carbon levels activity decomposition materials nutrients structure reducing availability
• Integrated Application of Biochar and Polyacrylamide with Conservation Tillage Promotes Fertilizer-N Recovery in the Short Term (2026) · Agriculture · doi

  Although conservation tillage (CT), polyacrylamide (PAM), and biochar (BC) are each known to enhance soil organic carbon (SOC), their combined short-term effects on SOC sequestration and fertilizer-nitrogen (N) recovery remain unclear.

  generalabstractevidence 5/5
  Keywords: conservation tillage polyacrylamide biochar known enhance soil organic carbon combined short term effects sequestration fertilizer
• Long-term combined organic and inorganic fertilization enhances soil quality and crop yield by regulating bacterial diversity and soil physicochemical properties (2026) · Frontiers in Microbiology · doi

  The mechanisms by which organic fertilizers affect soil quality and crop yield are unclear. There is a need to understand how organic fertilizers drive soil quality and crop yield through microbial pathways.

  generalstated research gapevidence 5/5
  Keywords: mechanisms organic fertilizers affect soil quality crop yield
• Application of Trichoderma viride immobilized on rice husk under reduced synthetic fertilization in yellow chili pepper (Capsicum baccatum L.) var. pendulum (2026) · Frontiers in Agronomy · doi

  The intensive use of synthetic fertilizers generates economic and environmental impacts, and sustainable strategies are required to reduce mineral fertilizer inputs without compromising crop productivity. There is a need to evaluate the effect of organic amendments on crop variables such as height, chlorophyll index, root depth, fruit number, yield, and dry matter.

  generalstated research gapevidence 5/5
  Keywords: intensive use synthetic fertilizers generates economic environmental impacts
• Long-Term Nutrient Management (47 Years) Drives Yield Trajectories and Soil Organic Matter Dynamics in Maize-Wheat Cropping System of the Northwestern Himalayas (2026) · Journal of Soil Science and Plant Nutrition · doi

  The study identifies a gap in our understanding of the long-term effects of contrasting nutrient management practices on soil organic matter dynamics and yield stability. The study highlights the need for more research on the role of soil organic matter in sustaining soil fertility and carbon sequestration.

  generalstated research gapevidence 5/5
  Keywords: study identifies gap understanding long-term effects contrasting nutrient
• Effects of co-application chemical and organic fertilizers on microbial residues and their contribution to soil organic carbon accumulation (2026) · Frontiers in Microbiology · doi

  The mechanisms underlying the effects of co-application of chemical and organic fertilizers on SOC accumulation are unclear. There is a need to investigate the role of microbial residues in SOC dynamics.

  generalstated research gapevidence 5/5
  Keywords: mechanisms underlying effects co-application chemical organic fertilizers soc
• Organic fertilizer substitution alleviates microbial resource limitations to enhance soil function and crop yields (2026) · Soil Ecology Letters · doi

  Excessive nitrogen fertilizer use has resulted in severe environmental issues. The use of organic fertilizers can be limited by their availability and cost. The effects of organic fertilizer substitution on soil quality and ecosystem multifunctionality can be influenced by various factors such as soil type and climate.

  generalstated challengesevidence 5/5
  Keywords: excessive nitrogen fertilizer use has resulted severe environmental
• Long-term combined organic and inorganic fertilization enhances soil quality and crop yield by regulating bacterial diversity and soil physicochemical properties (2026) · Frontiers in Microbiology · doi

  Further studies are needed to investigate the long-term effects of combined organic and inorganic fertilization on soil quality and crop yield. Future research should focus on understanding the mechanisms by which organic fertilizers affect soil microbial communities and crop yields.

  generalfuture-work sectionevidence 3/5
  Keywords: further studies needed investigate long-term effects combined organic

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