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CSC 321: ARABLE CROP PRODUCTION

UNIVERSITY OF NIGERIA NSUKKA

FACULTY OF AGRICULTURE

DEPARTMENT OF CROP SCIENCE

SESSION: 2012/2013

COURSE NAME: CSC 321: ARABLE CROP PRODUCTION 



1 (a) State one major difference between organic and inorganic manures.

b. Define fertilizer grade

c. if Sulphate of Ammonia has 21% of theactive ingredient (i) Calculate the amount of sulphate of ammonia that will supply 63kg of the active ingredient

ii. Wrtie the name of the active ingredient

d. State two reasons for parboiling rice before milling

e. If a cassava farm has many of the plants showing the “candle stick appearance”

i. which pest would you suggest that is attacking such a  farm?

ii. List three control measures you would adopt to deal with situation

2. (a) State one reason why yam is a stem tuber

b. Briefly discuss yam production under the following headings:

i. cultivated species (ii) planting materials (iii) Land preparation (iv) staking

3. a. if maize is planted on 1st March 2013, state the right date that the first does of NPK fertilizer will be applied.

b. Discuss two important field pests and one major storage pest of maize under the following headings: (i) Name of pest (ii) Damage caused (iii) Control measures

c. List four storage facilities for maize grains.

4. Discuss ginger (Zingiher officinale Roscoe) producton under the following headings:

(i) Climate requirements (ii) propagation (iii) fertilization (iv) weeding (v) Harvesting (vi) Processing (vii) Storage (viii) utilization 

5. As an agronomist, estimate the total quantity of seeds in kg  that will be used to plant the following hectarages given that 1kg contain 1000seeds (making an allowance of 5% for damage due to drought).

i. 15½ hectares of maize (Zea Mays L) at a plant spacing of 75cm  x 25cm

ii. 10½ hectares sorghum (Sorghum vulgare L Moench) at a palnt spacing of 60cm x 25cm.

iii. 45  hectares of cowpea (Vigna Unguiculata L Walp) at a plant spacing of 30cm x 30cm

iv. 60 hectares of groundnut (Arachis hypogae L) at a plan t spacing of 20 cm x 20cm

6 (a) Enumearte the features that enable sorghum to be drought tolerant

b. explain the reasons why sowing sorghum on ridges is preferred in the tropics.

c. mention five diseases of sorghum, their symptoms and control

7. Write short notes: (i.) Ginning (ii) Pegging (iii) topping and suckering (iv) Alley cropping (v) Primary tillage implements  








UNIVERSITY OF NIGERIA NSUKKA

FACULTY OF AGRICULTURE

DEPARTMENT OF CROP SCIENCE

SESSION: 2011/2012

COURSE NAME: CSC 321: ARABLE CROPS PRODUCTION




Instruction: Answer question one and any other 4 questions

1(a) Define intercropping

b. State 5 advantages of intercropping

c. List two primary tillage implements and state their uses in land preparation for arable crop production

d. How will you amend an arable land that has low pH?

e. List 5 causes of soil acidity

f. If a farmer is to apple 120kg N/ha, what quantity of urea does the farmer require for 2 hectares?

g. Briefly describe with diagrams the three staking methods for ware yam production

h. State two reasons why a yam farm should be kept weed free.

2a) State the step-by-step procedure of  producing cassava stems for cassava farmers.

b. Given the product rate of primegram as 5L/ha, the delivery rate of 250L/ha of the chemical solution and a CP30 knapsack sprayer, calculate the amount of chemical that will be mixed with the 30 litres of water in the knapsack sprayer.

c. if you are to grow cassava in a mealybug endemic area, state three precautionary meamsures you would adopt to prevent attack of the pest on your farm.

3(a) List five cereals you have studied (state both the common and botanical names)

b. Discuss rice production under the following headings:

i. Water requirements  ii. land preparation  iii. Planting methods  iv. Weeding   

c. Why do you consider parboiling important during prcessesing of paddy?

4(a) Calculate the quantity of seeds in kilogrammes required to paln 2½ hectares of land at the following spacing: i. 25cm x 75cm ii. 50cm x 50cm iii. 50cm x 100cm (Note that one seed is planted per point and 5000 seeds weigh, 1 kilogarmme)
b. Why is fertilizer applied to maize as early as two weeks after planting?

5a). List the distinct characteristics of Legumes, fiber, spice and drug crops you studied.

b. Name at least two members of each group stating the families and the botanical name.

6) Discuss in detail the following with respect to tobacco production: i) Climatic and soil requirement ii. Nursery practices iii) Transplanting  iv) Fertilization v) Topping and Suckering vi) Curing

7) Write short notes on the following: i) Pegging in groundnut ii) Advantages of farm mechanization iii) Characteristics of grade A cotton iv) African rice gall midge vi) Taro lead blight   







UNIVERSITY OF NIGERIA NSUKKA

FACULTY OF AGRICULTURE

DEPARTMENT OF CROP SCIENCE

SESSION: 2008/2009

COURSE NAME: CSC 321: ARABLE CROP PRODUCTION 



1.            A piece of land was allocated to you to cultivate maize (Zea Mays) to fulfill practical component of Arable crop production.

(a)          State the land area allotted to you

(b)         What were the inter and intra-raw spacing used in your plant

(c)          With the plant spacing staled in 1(b) above calculate the plant population

(i)           Two seeds per hole and (ii) one seed per hole

(d)            Given a recommended manure rate of 10 metric tones per hectare calculate the amount  (e) (i) At what stage of the field work did you apply the manure (ii) state two reasons for applying the manure at that stage.

2.             If a farmer is supplied with ammonium sulphate (21%N), single superphosphate (189% 205) and muriate of potash (60% K20). State clearly by means of calculations how this farmer would use there carrier materials to compound 300kg of 5:10:12 NKP mixture. Calculate the amount of filer material that will b added in the mixture .

3.            Describe the production of paddy rice (Oryza spp) under the following headings:

(a)          Land preparation (b) water requirement (c) Planting method (d) fertilizer requirement

4.             (a) List five pest of cassava (b) outline three symptoms of Mealybug (phenacoccus manihotis) attack on cassava (c) Briefly describe five control measures you would recommend for cassava mealybug.

5.            Write short notes on the following (a) Cultivated yam species (b) Minisett (c) weeding of yam plots (d) Fertilizer application in yam plots.

6.            a. Give 3 examples of (i) oil crops (ii) Fibre crops and (iii) drug crops

b. what is the difference between drying and non-drying oils

c. describe the following in soybean production; environmental requirement, fertilization, spacing, common diseases and pests.

d. Describe the 3 types of vegetable fibres and give an example of each

7.            (a) Briefly discuss the following in cotton production; fertilization, pest management and soil requirement

b. define topping and sucking and describe the agronomatic relevance in Tobacco production (c)  describe nursery and fertilization in tobacco production (d) Name and describe the 4 tobacco curing methods 





UNIVERSITY OF NIGERIA NSUKKA

FACULTY OF AGRICULTURE

DEPARTMENT OF CROP SCIENCE

SESSION: 2010/2011

COURSE NAME: CSC 321: ARABLE CROP PRODUCTION

Section A:

1a. List two characteristics of the following crop families:

i.                         Gramineae

ii.                       Leguminoseae

iii.                      Dioscoreaceae

iv.                      Malvaceae

v.                        Solanaceae

1b. Give one example of each of the families in 1a. above

c. As an agronomist, differentiate between the following:

i.                      Crop and weed

ii.                    Mixed farming and mixed cropping

iii.                   Turning and supplying

iv.                   Arable crop and plantation crop

v.                     Organic fertilizer and inorganic fertilizer

Section B:

1.            Explain the following in relation to the cereals you studied.

i.                      Importance of maize in tropical Africa

ii.                    Factors that enable sorghum to be drought tolerant

iii.                   Parboiling in rice

iv.                   Fertilization in barley

2.            Write concise on the following:

i. Pegging and weed control in groundnut

ii. Fertilizer use in soyabean production

iii. Control of storage pests in cowpea

iv. Harvesting of groundnuts

section c.

3.            With respect to yam production, briefly describe

i.                      Methods of planting

ii.                    Types of planting material

iii.                   Methods of staking

iv.                   Wed control

v.                     Harvesting

vi.                   Storage

Section D.

4.            A farmer has a piece of land measuring 240,000cm2 for planting cassava Ten percent of the land is reserved for farm structures.

a.             Calculate the number of cassava cuttings the farmer would require for the remaining pieces of land (planting distance of cassava = 1m x 1m)

b.            If  stand of cassava tuber yields 10kg, how many tons of cassava is expected in the remaining piece of farmland.

c.             Assuming the farmers farm in 5(a) above by cassava mealybug (phenacoccus manhotis), briefly describe five control of this pest in the next planting season

Section D:

5.            a. Describe the three (3) important classes of fibre obtained from plant (indicate their uses and sources)

b. Name the two (2) popular cultivated cotton species and describe their major distinguishing features.

c. To ensure the production of high quality cotton, describe the recommended fertilization and spray schedule.

d. List four (4) major pests of cotton and their control measures

6.            a. Describe three (3) methods used in classifying vegetable oils

b. Describe the practices involved in the following with respect of tobacco production

i. Nursery

ii. Field establishment

c. Define suckering and Topping and state their significant in tobacco production

d. Describe the four (4) curing methods in tobacco processing.






UNIVERSITY OF NIGERIA NSUKKA

FACULTY OF AGRICULTURE

DEPARTMENT OF CROP SCIENCE

SESSION: 2011/2012

COURSE NAME: CSC 321: ARABLE CROP PRODUCTION 




1.            a. Define intercropping

b. State 5 advantages of intercropping

c. list two primary tillage implements and state their uses in land preparation for arable crop production

d. How will you amend an arable land that has low pH?

e. List 5 causes of soil acidity

f. if a farmer is to apply 120kg N/ha, what quantity of Urea does the farmer require for 2 hectares?

g. Briefly describe with diagrams the three staking methods for ware yam production

h. State two reasons why a yam farm should be kept wed free

2.             a. State the step. Procedure of producing cassava stems for cassava farmers.

b. Give the product rate of primegram as 51/ha. The delivery rate of 250/L/ha of the chemical solution and CP30 knapsack sprayer, calculate the amount of chemical that will be mixed with the 30 ltres of water in the knapsack sprayer.

c. if you are to grow cassava in a mealybug endemic area, state three precautionary measures you would adopt to prevent attack of the pest on your farm

3.            A. List five cereals you have studied (state both the common and botanical names)

b. Discuss rice production under the following headings:

i. water requirements

ii. land preparation

iii. Planting methods

i.              Weeding

c. Why do you consider parboiling important during processing of paddy.

4.            Calculate the quantity of seed in kilograms required to plant 2½ hectares of land at the following spacings:

i.              20cm x 75cm ii. 50cm x 50cm iii. 50cm x 100cm

b. Why is fertilizer applied to maize as early as two weeks after planting?

5. a. List the distinct characteristics of legumes, fiber, spice and drug crops you studied

b. name at least two members of each group stating the families and the botanical name

6. Discuss in detail the following with respect to tobacco production

i.                       climatic and soil requirement

ii.                      Nursery practices

iii.                    Transplanting

iv.                     Fertilization

v.                      Topping and suckering

vi.                     Curing

7. Write short notes on the following:

i.                       Pegging in groundnut

ii.                      Advantages of farm mechanization

iii.                    Characteristics of grade a cotton

iv.                     African rice gall midge

v.                      Taro leaf blight



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