WAEC 2016 AGRICULTURAL SCIENCE QUESTIONS AND ANSWERS NOW AVAILABLE FOR FREE

AGRICULTURAL SCIENCE 2 (ESSAY) 9.30AM � 11.40AM AGRICULTURAL SCIENCE 1 (OBJ) 11.40AM � 12.30PM AGRIC OBJ: 1-10: BBCDBBBADC 11-20: DBACACCDCC 21-30: AACBDDBBCA 31-40: CCBBBCBADB 41-50: DBCCDADBBD (1a) Tabulate: Subsistence: -Requires low capital -Requires family labour -Require small area of land -Low farm output -Requires low technical know how Commercial: -Requires high capital -Requires mechanized farming -Requires large area of land -High farm input -Requires high technical know how (1b) (i)Inadequate Land: -Prohibition of land tenure system by government -Leasing of land by government to farmers at subsidized prices (ii)Inadequate finance: -Provision of loans to farmers at low interest rate by commercial banks -Provision of farm inputs at subsidized prices by government (iii) -Practising of crop rotation -By using disease resistant varieties (1c) Agricultural ecology is the agricultural environment on how they affect agricultural production (1d) Sewage,Refuse,Oil spillage,Fertilizer and drains (2a) Farm surveying can be defined as the act of determining the dimension of a farm land ie the length,breadth,soil type, structure etc in order to determine its viability for farm production (2b) -Its shock can lead to fatal injury -It is unreliable in most developing nations -It is sometimes expensive to maintain -It cannot be used for most driven engines (2c) -To give an efficient work output -To maintain lengthy lifespan -To reduce cost of maintenance -To avoid incessant breakdown (2d) Land is any land that is used for either cultivation of crops or rearing of animal for human use and consumption (2e) -Population pressure:High population pressure creates a problem of inadequate land availability for farm production -Mining brings more pressure on agricultural land use because it destroys farm lands -A good topography encourages more agricultural land use (3a) Staking is when yam is staked with strong stick or bamboo to ensure adequate exposure of the leaf surface to sunlight and increases yield (3b) The nusery needs of spacing 20cm x 20cm on a field of 3mx3m on a loamy soil containing organic matter in a filled up polythene bags.The seeds are sown with shade to prevent it from direct heating by the sun and water and weeding is done twice daily or every morning/evening (3c) -To reduce the breakage of grains -It helps to bring vitamins to the outer layer of the grains -It reduces the labour requirement to remove husk -It saves time (3d) Advantages: -It helps to increase the farmers income and standard of living -It gives access to forest product -It creates employment opportunities Disadvantages: -Cultivation of selected crops -Reluctance in releasing fertile soil (4a) -Artificial insemination:Is the process by which semen of a desired male animal is inserted into the vulva of the female ie no physical contact between two animals -Pen mating:Is the one which a group of male and female animals are allowed to mate at random without any preference -Individual mating:The farmer selects the mate and female animals to be material with preference (4b) DRAW THE DIAGRAM (4c) -They give beauty to the environment -They provide capital when sold -They help reduce green house effect -They are used for decoration purposes -They encourage pollination (6a) Print (i)newspaper (ii)hand bills (iii)pamplets Media (i)radio (ii)televison (iii)film show (6b) (i)it is not at tendious as in the case of individual method (ii)it enable extension workers to reach but to many farmers at a time (iii)it saves time and money (iv)it tends to show more intrest in what may be introduce (6c) assembling as a marketing function;this is the re-gathering of various produce brought form different sources.it is also involving the repackage of produce in readness for final consumption (6d) -maize streak symptom (i)reduced yield control (ii)destroy diseased plant (iii) use resistant varieties -ground nut rosette symptoms (i)yellow leaves with mosaic mottling control (ii)early planting (iii)uproot and burn infected plant Answer loading.............