Agr0121:Annual Crops Question Paper
Agr0121:Annual Crops
Course:Diploma In Agriculture
Institution: Meru University Of Science And Technology question papers
Exam Year:2013
QUESTION ONE (30 MARKS)
a) What are the importances of crops classification? (4 Marks) b) Explain the difference between annuals, biennials and perennial crops. (6 Marks) c) Describe the economic importance of weeds in crop production. (5 Marks) d) What do you understand by: i. Tillering ii. Rationing iii. Silking iv. Biocidal crops v. Variety (5 Marks) e) Explain the characteristic behaviour and control measures of witchweed (striga spp). (5 Marks) f) Highlight five pests of economic important in maize production. (5 Marks)
QUESTION TWO (15 MARKS)
a) Explain the ecological requirements of the following crops; i. Wheat (Triticum aestivum) ii. Bulrush millet (pennisetum gluacum) iii. Dry beans (Phaseoulus vulgaris) (12 Marks) b) Highlight three (3) common diseases of tobacco (Nicotiana tabacum). (3 Marks)
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QUESTION THREE (15 MARKS)
a) Explain four types of culture that are used in Rice coryza sative L.) production. (8 Marks) b) Explain why water moisture is critical in annual crops during the flowering and earing. (7 Marks)
QUESTION FOUR (15 MARKS)
a) Given the planting spacing of a crop, the seed rate and the germination percentage, explain how you would calculate the crop population or plant density. (10 Marks) b) Describe the control measures of head and ear smuts (ustalago spp). (5 Marks)
QUESTION FIVE (15 MARKS)
a) Despite the high yielding hybrid seeds in cereals, farmers don’t realise the full potentials of these crops. Why? (10 Marks) b) What is the relationship of early planting to nitrogen flush? (5 Marks)
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