FORMS IN WHICH ELEMENTS OCCUR IN SOIL

Question 1

SOIL

1. • is the form in which the
     element is combined as a part of a
     compound and is not accessible to
     plant absorption until the compound
     is “decomposed”.

2.

Answer 1

Unavailable

Question 2

• is the form which
  the element exists as a cation or anion
  adsorbed (surface attraction) on the
  surface of organic compounds or clay
  minerals. The exchangeable ions are
  partly available to plants.

Answer 2

Exchangeable form -

Question 3

• is assumed to be the
  most available form.

Answer 3

Solution form

Question 4

– growth of plants is limited by the plant nutrient present in limiting amounts.

Answer 4

Law of minimum

Question 5

developed an equation, which related growth to the supply of plant nutrients.
•He observed that the increase in growth with each successive addition of the element in question progressively becomes smaller

Answer 5

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