JAMB UTME - Agricultural Science - 2022

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The problem that is usually not associated with subsistence agriculture is "it requires a large area of land." Subsistence agriculture is typically practiced on small plots of land and involves growing crops and raising livestock for the sole purpose of feeding one's family, without generating any surplus for sale. The other three problems mentioned (unreliable family labour supply, use of simple tools, and lack of surplus for sale) are all commonly associated with subsistence agriculture.

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Poisoning is not a commonly used fishing method and is generally considered unethical and harmful to the environment. The other three techniques, netting, trapping, and hooks and lines, are commonly used methods in fishing.

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Harrow

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Malnutrition is said to occur when a ration does not provide all the food nutrients in adequate quantities needed by an animal.

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- Never innovators

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Planting of trees.

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Planting weed is not a basic consideration in planting operations. The other options listed are all important factors to consider when planting, as they can affect the growth and development of the plants. Planting space determines how far apart to plant the seeds or seedlings, which affects how much space the plants will have to grow and how much light, water, and nutrients they will receive. Planting time is important because different plants have different requirements for temperature and moisture, and planting at the wrong time can result in poor growth or even the death of the plants. Planting depth is important because different seeds require different depths to germinate properly, and planting too shallow or too deep can affect the germination rate and the growth of the plants.

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Pulses.

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Preservation of fish prevents the following except processing. Preservation methods such as refrigeration, freezing, smoking, canning, and drying are used to prevent spoilage, destruction, and injury of fish. These methods help to maintain the quality and freshness of the fish for a longer period of time. However, processing, such as filleting, skinning, and deboning, is a separate step that is often performed after preservation to prepare the fish for consumption.

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Late adopters.

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Plough.

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Incubator.

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Irrigation is the artificial watering of farmland.

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Essentially Innovators.  Early adopters too have a minor role to play in this case.

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Nutritional deficiency is a disease condition which emanates from inadequate nutrition.

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Availability of fund

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Nursery is a special place prepared for raising seedlings which are later taken to the field for planting.

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"It may not perform maximally" is not an advantage of introduction.

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Synecology

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Ecosystem

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The main function of an Agricultural Extension Officer is to pass information or new innovation from the research institute to the farmers, not just pass information but sometimes also demonstrate how to use these information. They are like and intermediary between the researchers and the farmers.

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Poster.

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to place the correct number of seed(s) into a hole with regular spacing within and between rows.

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The branch of ecology that deals with the study of an individual organism and its interaction with the environment is called "autecology."

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The B-horizon of soil profile is also called the sub-soil.

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The "red revolution programme" is not an example of agricultural extension.

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The quantity of ration that can supply the required nutrients above the maintenance to enable the animal to produce the form of animal product for which the livestock is kept is known as a "production ration."

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Stumping operation involves the use of farm tools like the cutlass, spade, mattock, ax, bull-dozer, etc, to manually or mechanically remove or uproot the base of trees and shrubs. This is done to compose cultivation easier and free from obstruction.

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A bridge.

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Diffusion.

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Micro-organisms is not an abiotic component of an ecosystem.

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A Tractor is a powerful and expensive multipurpose motor vehicle used for lifting or pulling farm implements.

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The method of storage that is commonly used for grains is "silos".

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The vertical section of the soil showing a series of horizontal layers of different types of soil is called a "Soil profile".

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Presence of bad roads

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Five

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The process of removing excess seedlings from a seedbed after the viable seeds have germinated is called "thinning".

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Seeds are raised in the nursery for several reasons, including: - To protect them from harsh environmental conditions, such as extreme temperatures or heavy rain, which could damage or kill the seeds. - To provide them with a controlled environment with optimal growing conditions, such as the right amount of water, nutrients, and light. - To monitor and manage pests and diseases that could harm the seeds. - To allow for easier transplanting and handling of the seedlings once they are ready to be moved to their final growing location.