WAEC GCE 2016 Agricultural Science ANSWER OBJECTIVE AND THEORY (obj and essay) QUESTION AND ANSWER EXPO/CHIOKES Now Available -NOVEMBER/DECEMBER (NOV/DEC)

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EXAM TIME: Tuesday, 6th September, 2016
Agricultural Science (Essay&Objec
9.30am – 12.30pm
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(1a)

(i) They help to educate the farmers on new farming techniques

(ii) They help provide agricultural shows and talks to the farmers

(iii) They help to provide improved seedlings to the farmers

(iv) They help to provide pesticides to the farmers

(v) They help to train the farmers on better planting methods as newly developed

 

(1b)

Advantages:

(i) the land can be used as collateral to obtain loans from commmercial banks

(ii) the land cab be improved by way of fertilizer-application in order to maintain its fertility

Disadvantages:

(iii) it leads to excessive land fragmentation wgich makes the land very difficult and unecomincal

(iv) sharing of land is a delicate issue which can generate bitter enmity among family members

 

(1c)

(i) plant the crops on the best soil within the farm

(ii) building should be located in easily accessible areas

(iii) livestock buildings should be located on the poorest soil withing the farm

(iv) farm building should not be located on slopes to avoid erosion

 

(1di)

(i) The knapsack sprayer is used for applying pesticide to the crops

(ii) The knapsack sprayer is used for applying fertilizer to the soil

 

(1dii)

(i) Cultivators

(ii) Harrow

(iii) Planks and rollersrollers

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(2a)

Soil PH can be defined as a measure of degree of acidity or alkalinity of the soil

 

(2b)

(i) leaching

(ii) Use of acid fertilizers

(iii) Presence of acid parent materials

 

(2c)

(i) Agricultural limestone

(ii) Wood ashes

(iii) Organic matter

 

(2d)

-Cowpea: Grain legumes-These crops are rich in protein

-Amaranthus:Vegetable crops-These crops provide vitamins and minerals

-Oil palm: Oil crops-These crops provide oil when processed for domestic and industrial use

-Coconut: Oil crops-These crops provide oil when processed for domestic and industrial use

-Cassava: Root and tuber crops-These crops produce tubers under the ground and they provide arbonhydrate

-Maize: Cereal crops-This crops belong to the grass family and they provide carbonhydrate

-Soya bean: Grain legumes-These crops are rich in protein

-Cocoa: Beverage crops-They provide food drinks when processed

-Pepper: Spices-They provide vitamins and minerals

-Plantain: Fruit crops-They also provide vitamins and mineral

 

(2e)

(i)Cowpea-Vigna unguiculata

(ii)Rubber-Hevea braziliensis

(iii)Oil palm-Elaeis guineensis

(iv)Yam-Dioscrea spp

(v)Cocoa-Theobroma cacao

 

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(3ai) It is caused by fungi

(3aii) Rain and wind can spread disease, as well as insects and irrigation water.

(3aiii) chlorosis of the onion leaves occurs

3aiv)

(i)Bury or flail infected crop residues after harvest to promote decomposition.

(ii)Avoid overhead water and over-watering, especially in transplant production.

 

(3b)

(i)They feed on natural fibers

(ii)They have a direct impact on agricultural food production by chewing the leaves of crop plants

(iii)They reduce crop yield

(iv)they reduce the quality of crops

(v)they cause retarded growth of crops

 

(3c)

(i)Select boars that are free from defects

(ii) grow faster than average

(iii)have less backfat than the average of the breed

(iv) have eaten less feed than average to reach a specific weight.

 

(3d)

(i)Good for maternal and rotational crossbreeding

(ii)Docility and ease of management

(iii)Lower wintering cost

(iv)Early maturity and longevity

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(6a)

(i)he must be persuasive

(ii)he must be approachable

(iii)he must pass government policy to the farmers

(iv)he must be knowledgeable

 

(6bi)

Advantages:

-the farmer receives more attention from the agent.

-the farmer gets information faster through the use of telephone

disadvantages:

-it waste a lot of time

-many farmers cannot e reached

 

(6bii)

advantages:

-it saves cost and time

-it is not as tedious as in personal contact

disadvantages:

-the unserious ones can discourage others

-shortage of extension workers to reach many groups

 

(6c)

these are laws promulgated by the government in form of decrees, edicts and bye laws to prevent people from exploiting the forest at will, that is helps to conserve or preserve trees.

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