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Nar0240:Soil Fertility And Fertilizers Question Paper

Nar0240:Soil Fertility And Fertilizers

Course:Diploma In Agriculture

Institution: Meru University Of Science And Technology question papers

Exam Year:2013

QUESTION ONE – 30 MARKS
(a) What is soil fertility? (3Marks) (b) Explain the factors influencing level of soil organic matter. (5Marks) (c) Explain how drainage is factor of soil fertility. (5Marks) (d) Explain five (5) factors that affect the fertilizer use. (5Marks) (e) Explain the role of Nitrogen and Phosphorous in plant metabolism. (7Marks) (f) Describe five ways in which soil may lose fertility. (5Marks)
QUESTION TWO – 15 MARKS
(a) Describe the application methods of fertilizer. (8Marks) (b) Explain the characteristic features of Nitrogen fertilizers. (7Marks) QUESTION THREE – 15 MARKS (a) Explain the deficiency symptoms and excess or toxicity of Potassium (5Marks) (b) Differentiate the deficiency symptoms of Nitrogen, Magnesium, Sulphur and Zinc. (10Marks)
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QUESTION FOUR – 15 MARKS (a) Explain the limitations of using Visual symptoms as a diagnostic tool for plant nutrients. (12Marks) (b) Explain the following terms: (i) Essential elements (ii) Macronutrients (iii) Hidden hunger (3Marks)
QUESTION FIVE – 15 MARKS (a) Explain how the following influence the soil fertility:- (i) Soil PH (ii) Cation Exchange Capacity (CEC) (iii) Soil Solution (6Marks) (b) By use of a diagram, illustrate the nutrients level of concentration in the plants. (9Marks)

Nar0240:Soil Fertility And Fertilizers Question Paper

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