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Weeds, Gloria Leger-Goodes, Grace Beaudoin, Evelyne Leveille, Angeline…

- - - - Controlling pests
        
        raises nutrient density
        
        Use a refractometer
    - - Negative charge
        
        Only happens in clay soil
  - - - Rice production
    - - Changes in land use
        
        Deforestation
        
        Grassland
      - Fossil fuels
        
        Machinery
        
        Fertilizer
    - - Fertilizers
        
        Excess nitrogen in soil
      - Soil compaction
  - - - Hold
      - Release
      - Absorb
    - - Clay
      - Sand
      - Silt
  - - - Symbiotic relationship with plants (Hyphea attatch onto roots)
        
        Easier for plants to access water & nutrients
        
        Easier for fungi to access energy (sugar)
    - - Decomposition of organic matter
        
        Makes nutrients available to plants
    - - Create air tunnels in soil
        
        Produces more air for plants
    - - Support different populations of microorganisms
        
        Crucial to the correction of imbalances in soil
- - - - Conventionally: we would add nutrients without considering its side effects or if the soil truly needed it.
      - Limits greenhouse gases emissions (nitrous oxide due emissions due to excess nitrogen added in soil)
      - Limits excess nutients in soil resulting in soil contamination
    - - Microbes makes nutrients available to plants
      - Farmers might add nutrients that doesn't match the need of the plant
        
        Weeds are then really important because they act as the "lighthouse"