Diploma in Agriculture module II : Crop Production, Soil fertility and plant nutrition past paper November 2012 Answers

Answers for Diploma in Agriculture module II : Crop Production, Soil fertility and plant nutrition past paper November 2012

Course Name:  Agriculture
Also Done By:
na
Course Level:  Diploma
Sub Level:       Module II
Course Unit:   Crop Production, Soil fertility and plant nutrition
Exam body:    KNEC
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1. . Explain the advantages of the following practices in cereal crop production: (a) Breeding for Pest Resistance (b) Biological Control of Pests ()
2. Explain how chitting of potato tubers improves the performance of the potato crop ()
3. Describe the establishment of tea crop ()
4. Describe the causal agent, symptoms, and control of: (a) Loose Smut of Sugar Cane (b) American Bollworm in Cotton ()
5. Describe the following: (a) Wet Processing of Coffee (b) Control of Striga Weed in Cereals (c) Utilization of Simsim (Sesame): ()
6. Explain the process of flue-curing in tobacco ()
7. Explain the effects of temperature on sunflower production ()
8. Explain the advantage of urea as a fertilizer ()
9. Explain the following processes in the nitrogen cycle: (i) Immobilization (ii) Mineralization ()
10. Following soil analysis, a maize farmer was advised to apply liming to soil before planting. (i) Name any two liming materials the farmer could use (ii) State the factors that determine soil liming ()
11. Given the following fertilizer materials; Muriate of potash 60% (K₂O), superphosphate (20% P₂O₅), and ammonium nitrate (33% N); calculate the amount of each fertilizer material that may be used to prepare 100 kg of 17-10-17 NPK ()
12. Explain how organic fertilizer materials influence soil properties ()
13. Explain: (i) Factors Affecting K-Fixation (ii) Benefits of Applying Fertilizer in Drip Irrigation ()
14. Describe deficiency symptoms of nitrogen in plants ()
15. Explain how soil pH influences the availability of plant nutrients ()
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