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SOIL SCIENCE
  • Ryan Edzel Remo

  • 問題数 29 • 4/13/2024

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    問題一覧

  • 1

    Most abundant minerals containing Al, O and Si

    Silicates or alumino- silicates

  • 2

    Capacity to sustain plant life with required nutrients

    Soil Fertility

  • 3

    High surface area is equivalent to high soil holding capacity

    TRUE

  • 4

    The process of which running water on the soil surface, wind, ice or other agents transport soil from one place to another

    soil erosion

  • 5

    Also called as nutrient mining

    crop removal

  • 6

    Ammonium ion to nitrite will become nitrogen gas

    Anammox

  • 7

    Conversion from NH4 to NH3 or ammonium to ammonia

    Volatilization

  • 8

    Conversion from inorganic materials back to organic

    immobilization

  • 9

    Denitrification caused by what kinds of bacteria

    Chemoautotrophic bacteria

  • 10

    Conversion from organic to inorganic

    Mineralization

  • 11

    Reduction of NO3 into gaseous forms of Nitrogen

    Denitrification

  • 12

    Used by fertiliser companies to manufacture most nitrogen carriers

    Haber- Bosch process

  • 13

    Is a term which describes in a general way the relative ease in which a nutrient element is supplied by the soil to the plant

    Availability

  • 14

    The concentration of the nutrients in the soil solution

    intensity factor

  • 15

    The ability of the soil to replenish the ions in the soil solution as they are absorbed by the root

    Capacity factor

  • 16

    The rate of replenishment of the nutrients in the soil solution as they are absorbed by plant roots

    Rate factor

  • 17

    Mechanisms by Which nutrients are made available to plant roots

    All of the above

  • 18

    When the nutrients dissolved in soil water is transported to the root surface

    mass flow

  • 19

    Movement of nutrients from higher to lower concentration

    Diffusion

  • 20

    A process wherein there is an intimate contact with soil surfaces so that ions are exchange directly between the soil particles and the root surface

    Contact exchange

  • 21

    The nutrients are absorbed by the roots as they ramify through the soil

    Root interception

  • 22

    Phosphorus comes from apatite minerals

    TRUE

  • 23

    How many essential elements

    18

  • 24

    Soil Fertility is edapological approach

    TRUE

  • 25

    Key role in ATP reactions or energy transformation

    Phosphorus

  • 26

    Major components of organic compound

    All of the above

  • 27

    Protein synthesis

    Nitrogen

  • 28

    Stomatal movements; osmotic potential in plant cells

    Potassium

  • 29

    These 2 micronutrients involves in nitrogen cycle

    Iron, Molybdenum