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2. Hydrophobic soil - Wikipedia

   en.wikipedia.org/wiki/Hydrophobic_soil

   Hydrophobic soil is a soil whose particles repel water. The layer of hydrophobicity is commonly found at or a few centimeters below the surface, parallel to the soil profile. [ 1 ] This layer can vary in thickness and abundance and is typically covered by a layer of ash or burned soil.

3. Hydroponics - Wikipedia

   en.wikipedia.org/wiki/Hydroponics

   Due to the plants continuous fight against gravity, plants typically mature much more quickly than when grown in soil or other traditional hydroponic growing systems. [55] Because rotary hydroponic systems have a small size, they allow for more plant material to be grown per area of floor space than other traditional hydroponic systems.

4. Plant nutrition - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrition

   Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite .

5. Wood Chips Are the Secret to Healthy Soil and Plants ... - AOL

   www.aol.com/wood-chips-secret-healthy-soil...

   To insulate the roots of your plants, add a 2—to 3-inch layer over the soil. Compost Wood chips are carbon-rich, making them a great material to use in compost.

6. Infiltration (hydrology) - Wikipedia

   en.wikipedia.org/wiki/Infiltration_(hydrology)

   Soil compaction also impacts infiltration capacity. Compaction of soils results in decreased porosity within the soils, which decreases infiltration capacity. [4] Hydrophobic soils can develop after wildfires have happened, which can greatly diminish or completely prevent infiltration from occurring.

7. Bioavailability (soil) - Wikipedia

   en.wikipedia.org/wiki/Bioavailability_(soil)

   As the contact time between the contaminant and soil increases, a decrease in bioavailability is observed, termed “ageing”, due to diffusion and sorption processes with mineral and organic fractions of soil. [5] Environmental conditions influence bioavailability. Drought conditions result in lower soil water content. This can reduce the ...