To date, there have been few reports on the use of soil

The gap

Evidence profile

Sourced from the stated research gap and abstract and future-work section of the source papers, classified as general, drawn from work published between 1971 and 2026, spanning 6 journals. Those papers have been cited 31 times in total.

Supporting evidence — 6 representative gaps

• Diagnosis of Soil Quality in Barley Farmlands in Central and Northern Hubei Province (2026) · Agronomy · doi

  The paper notes that soil quality evaluation requires an integrated analysis of various soil functions, but does not explicitly state the research gap. The study implies that there is a need to assess the soil quality of barley farmlands in central and northern Hubei Province. The paper also notes that the existing soil quality evaluation methods may not be suitable for the region.

  generalstated research gap
  Keywords: paper notes soil quality evaluation requires integrated analysis
• Synergistic effect of the amendment on soybean yield increase and soil remediation in soda saline–alkali land: focusing on the soil quality index (2026) · Frontiers in Plant Science · doi

  However, to date, there have been few reports on the use of soil quality index (SQI) to characterize soil quality restoration in different soil layers of saline alkali land.

  generalabstractevidence 5/5
  Keywords: soil quality date there reports index characterize restoration different layers saline alkali land
• Performance evaluation of soil quality indices in agricultural landscapes (2026) · Discover Soil. · doi

  The study identifies a gap in the current methods for evaluating soil quality. The study highlights the need for a more reliable and effective approach for assessing salt-affected soil quality.

  generalstated research gapevidence 5/5
  Keywords: study identifies gap current methods evaluating soil quality
• Spatial Variability of Soil Quality Under Diverse Land Use Systems in Tropical Coastal Environments: A Case Study from India (2026) · Journal of Landscape Ecology · doi

  Further studies can investigate the effects of land-use changes on soil quality in other regions. Research can focus on developing strategies to improve soil quality in degraded areas.

  generalfuture-work sectionevidence 5/5
  Keywords: further studies investigate effects land-use changes soil quality
• Monitoring of Mineral Fertilizer for Quality Assurance in Division Faisalabad (2026) · Agricultural Science · doi

  Further studies can be conducted to monitor the quality of fertilizers in other divisions. Research can be done to develop more effective methods for quality assessment of fertilizers.

  generalfuture-work sectionevidence 5/5
  Keywords: further studies conducted monitor quality fertilizers other divisions
• SOIL QUALITY IN ILLINOIS—AN EXAMPLE OF A SOILS GEOGRAPHY RESOURCE ANALYSIS∗ (1971) · The Professional Geographer · cited 31× · doi

  The paper suggests that geographical analysis of the genetic soil forming factors in Illinois could provide insight into understanding the areal patterns evident in the soil quality analysis. The paper also suggests that the soil quality analysis could be used to support or refute concepts developed in agricultural geography analysis.

  generalfuture-work sectionevidence 5/5
  Keywords: paper suggests geographical analysis genetic soil forming factors

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