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Plant nutrition questions.

Plant nutrition questions.

Find Plant nutrition university examination questions in acaproso.com

# Question
1

Deficiency symptoms of molybdenum in plants are basically the deficiency symptoms of nitrogen. Discuss.


Long answers
2

Briefly describe the role of potassium in regulating water loses in plant.


Long answers
3

Name two compounds and one element that constitute the mixed catalyst used in the process of wet digestion during N determination in plant samples.


Practical
4

What is the function of the following reagents during total N determination?

  1. concentrated H_{2}SO_{4}
  2. catalyst mixture
  3. saturated NaOH
  4. boric acid H_{3}BO_{3}
  5. dilute H_{2}SO_{4}

Practical
5

Define and briefly state the importance of each of the following terms.

  1. A standard sample
  2. A blank
  3. Critical nutrient value
  4. Critical nutrient range

Practical
6
  1. Mention three processes that facilitate the absorption of ions from the bulk soil to the root surface.
  2. Describe one mechanism to account for the absorption of ions into root cells.
  3. Describe how nutrient ions are transported across the root i.e from epidermal cells to the xylem vessels. Illustrate your description using an appropriate diagram.

Long answers
7

Write short notes of the following steps of plant analysis:

  1. Plant sampling
  2. Drying plant samples
  3. Grinding plant samples

Short answers