Soil 320: Soil Fertility And Plant Nutrition Question Paper
Soil 320: Soil Fertility And Plant Nutrition
Course:Bachelor Of Science In Agriculture
Institution: Egerton University question papers
Exam Year:2013
ATTEMPT ALL QUESTIONS
1. Explain the main soil factors that affect nutrient availability to plants. (10 Marks)
2. Briefly describe the mechanisms by which nutrients are taken up by plants from soil. (9 Marks)
3. With reference to plant nutrition, define the following terms giving two examples for
each: (12 Marks)
a. Micronutrients
b. Macronutrients
c. Beneficial elements
4. Explain the following terms in relation to nutrient cycle (9 Marks)
a. Mineralization
b. Denitrification
c. Nutrient fixation
5.(a) Define the term lime requirement. (2 Marks)
(b) What is fertilizer use efficiency? (4 Marks)
6. Explain the importance of soil organic matter in crop production. (10 Marks)
7. Discuss the factors influencing fertilizer placement method. (10 Marks)
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