Neco runs 2017 : Verified agric science obj and theory expo /answers

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*THEORY ANSWERS*

*NOTE*:ANSWERS ONE QUESTION FROM EACH SECTION
*SECTION A, B, C, D, E*

*SECTION A*

*CHOOSE NO2*

*2ai)*
i)It depletes soil nutrients
ii)It destroys crops

*2aii)*
i)It makes it difficult for farmers to transport there goods to the market
ii)It makes it difficult for extension workers to access the rural farmers and educate them.
2b)
i)Non members of the community cannot have access to the land for farming
ii)It cannot be used as security to obtain loan in bank
iii)Increase in population tends to reduce the size of farmland shared to each member

*2c)*
Shifting cultivation is an agricultural system in which plots of land are cultivated temporarily, then abandoned and allowed to revert to their natural vegetation while the cultivator moves on to another plot. While Bush fallowing is a system of farming whereby the farmer cultivates one piece of land for some years and later leave it for some years with the aim of restoring the fertility of the soil naturally.

*2d)*
iWatering can
ii)Harvesting knife
iii)Sickle
iv)hand trowel

*2e)*
Area=length x breadth
Area = 200 x 400
Area = 80000m2

*SECTION B*

*CHOOSE NO3*

3a )
i)Use of organic matter
ii)Planting of cover crops
iii)Mixed cropping
iv)Land use planning

3bi)
*Monocropping* is an agricultural practice in which the same crop is planted year after year , without practicing crop rotation or resting the soil
while
*monoculture* is the agricultural practice of producing or growing a single crop , plant , or livestock species, variety , or breed in a field or farming system at a time .

3bii)
*mixed farming* is the process of growing cops and feeding livestock
while
*Mixed cropping* is growing of two or more crops simultaneously on the same piece of land .

3c)
i )Expansive land leveling is not required .
ii)Water saving irrigation intensity can be changed in accordance with the infiltration capacity of soil .
iii)High efficiency due to uniform water distribution .
iv)No special skills trained personal can operate the system reasonably well .

*SECTION C*
CHOOSE NO5

5a)
 Crop rotation is The successive planting of different crops on the same land to maintain soil fertility and help control insects and diseases.

5b)
 i) It serves as food for man
ii) Some weeds are used for medicinal purposes
iii) Weeds Add Organic Matter and Nutrients to the Soil:
iv) Weeds helps to control Wind, Water and Soil Erosion.

5c)
i) Overgrazing
ii) Climatic and weather conditions
iii) Soil texture and structure

5d)
i) They are used for decorations
ii) Some of them serves as food for man and animals
iii) They are used as scent plants for their fragrance

5e)
Preplanting activities are farm activities carried out before rubber plantation e.g land clearing *WHILE* post planting activities are activities carried out after planting e.g siping

*SECTION D*

*CHOOSE NO8*

8a)

i) Presence of pathogens on the farm
ii) Poor management and hygiene conditions of the animals
iii) Overstocking of animals

8b)
Diet is the sum of food consumed by an animal while ration  is the daily feed portion prepared from various feeds according to various animals’ requirements.

8c)

i) Soil nature
ii) Accessibility
iii) Availability of water supply
iv) Climatic and weather conditions

8d)

i) It causes diseases to farm animals
ii) It reduces farmers income
iii) It reduces the quality of farm animals and eventually leads to death

8e)
i) Bacteria
ii) sudden onset of fever and difficulty in breathing.
iii) Feeding on contaminated feed
iv) Through the identification of infested areas and use of insecticide

*SECTION E*
*CHOOSE NO9*

9ai)
 Supply in agricultural economics refers to the quantity of a good that the producer plans to sell in the market.

9aii)
i) Climatic conditions.
ii) Improvements in technology.
iii) The rate of supply of a related good
iv) Costs of production I.e cost of rearing cow
v) . The number of producer I.e cow rearers.

9b)
i) to maintain affordability of goods
ii) To prevent inflation
iii) To ensure a minimum income for providers of certain goods or a minimum wage.

9ci)
Advantage
i) -time savings compared with individual extension
ii) It is cheaper.

Disadvantage
i) It is not for communicating complex subject matters
ii) It is not easy to gather the target group and requires more skills.
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*THEORY ANSWERS COMPLETED*
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COURTESY OF BMASTERZ☆☆

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