JAMB UTME - Agricultural Science - 2022

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It is very expensive to operate.

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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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Availability of fund

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The climatic factors which affect organisms include air, sunlight, and rain. Rocks are not a climatic factor, although they can indirectly affect organisms through their impact on soil composition and drainage patterns.

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None of the above.

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The process that is not used in rice processing is fermentation. Threshing is the process of separating the grain from the straw, while winnowing is the process of separating the chaff from the grain. Perboiling involves partially boiling the rice in the husk, which results in increased nutritional value and easier removal of the husk. Fermentation is a process used in the production of certain types of alcoholic beverages and some food products, but it is not a typical step in rice processing.

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Plough.

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

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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.

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The A-Horizon of soil profile is also called the "top soil."

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Temperature

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

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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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The condition that is not necessary for germination is "zero temperature." All seeds require an optimum temperature range for successful germination, which varies among different plant species. While some seeds may require a specific temperature, such as stratification or scarification to overcome dormancy, no seeds can germinate at zero temperature. Therefore, the correct statement is: The following conditions are necessary for germination except zero temperature: - adequate moisture - viable seed - optimum temperature

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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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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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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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Five

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Irrigation is the artificial watering of farmland.

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The botanical name for maize is Zea mays.

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Outbreeding.

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Poster.

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Planting of trees.

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

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

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A bridge.

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Poor transportation network.

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in-planting operations

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Presence of bad roads

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Diffusion.

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

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The nutrient class that is used only for energy production in farm animals is Carbohydrates. While all nutrient classes can be sources of energy for animals, carbohydrates are particularly important for providing energy quickly and efficiently. Proteins and minerals are primarily used for building and repairing tissues and structures in the body, while fat and oil serve a variety of functions including energy storage, insulation, and as building blocks for certain hormones.

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

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Harrow

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Ecosystem

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Mouldboard plough makes deeper cuts than disc plough

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Agricultural extension is the process which assist farmers through educational procedures in improving farming methods.