Agricultural Science

Agricultural Terms: Definition and Meanings of Agricultural Terms (P and Q), part 2

len Alfred Ajibola - Sat, 22nd June, 2019 @ 15:18

Topics in Agricultural Science

Prevention and Control of Crop Pests Economic Importance of Crop Pests Classification of Insect Pests and their Economic Importance Agricultural Machines and their Uses Soil Erosion: Causes of Soil Erosion Ways to prevent Soil Erosion Asexual Propagation in Plants, Types and Examples Differences between Gymnosperms and Angiosperms Scheme of Work, Agricultural Science, SS1, First Term Scheme of Work, Agricultural Science, SS1, Second Term Scheme of Work, Agricultural Science, SS1, Third Term Len Academy Agric Science exam questions, JSS1, First Term Len Academy Agric Science exam questions, JSS1, First Term, part 2 Agriculture Terms - Definitions and Meanings of Agricutural Terms (P - Q) Agricultural Terms: Definition and Meanings of Agricultural Terms (P and Q), part 2 Len Academy questions for Agric Science JSS1, 2nd Term Len Academy questions for Agric Science JSS1, 2nd Term, Part 2 Roles of Government in Agriculture Agricultural pest and Crops attacked Agriculture Terms - Definitions and Meanings of Agricutural Terms (I - O)

Academic Questions in Agricultural Science

Please check out our Test Your Knowledge page to see all Questions and Answers

Which of the following is an example of oil crop?

  • A. Melon

  • B. Rubber

  • C. Flax

  • D. Moringa

  • E. Ginger

  • F. Coffee

Concerning crops and plants, which of the following statement is incorrect?

  • A. All plants are not crops

  • B. All crops are plants

  • C. Cactus can be a crop

  • D. Corpse flower is not a plant

  • E. Venus flytrap is not a crop

  • F. All the options are correct

Which of the following is not a problem associated with agriculture?

  • A. Superfluous research facilities

  • B. Poor road network

  • C. Illiteracy

  • D. Lack of storage facilities

  • E. Limited mechanized farming

  • F. Bad government policies

Mallet - Len Academy

The above image is a _____.

  • A. Hammer

  • B. Crowbar

  • C. Shear

  • D. Secateur

  • E. Bolo

  • F. Mallet

Cutlass - Len Academy

The agricultural tool shown in the image (above) is used for the followings except _____.

  • A. For cutting tree branches, weeds, and other plant materials in farmland

  • B. To remove dirts from the top soil

  • C. For harvesting crops like sugarcane

  • D. To clear bushes

  • E. For planting crops like melon

  • F. To dig superficial holes for the planting of seeds

Which of the following statement is false concerning soil erosion?

  • A. The top soil is moved from one point to another

  • B. Man is an agent that bring about soil erosion

  • C. Wind and water are natural agents of soil erosion

  • D. Sheet erosion is said to occur when the surface of a land is eroded at an unequal levels

  • E. Deforestation will increase the likehood of wind erosion

  • F. Rill erosion results in the formation of miniature dongas on land

Gully erosion - Len Academy

The above diagram shows a _____ erosion.

  • A. Wind

  • B. Sheet

  • C. Rill

  • D. Gully

  • E. Landslide

  • F. Crooked

An instance of farming whereby a farmer uses animal and green manure as fertilizers in place of chemicals like NPK is termed _____.

  • A. Reformative farming

  • B. Alternative farming

  • C. Crude farming

  • D. Retrogressive farming

  • E. Non-Chemical farming

  • F. Agro-farming



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Agricultural Terms and Definitions:

This is a continuation of the agricultural terms and definitions for letters "P and Q".

You can read on Agricultural Terms for (letters P and Q) part 1 here


  • Plant Litter

This is the accumulation of plant’s leaves, twigs, bark, stem, branches, fruits, seeds, flowers and other plant parts on the surface of the soil.


  • Plantations

This is a very large area of agricultural land on which one type of crop may be established through planting.

Examples of plantations are cotton plantations, tobacco plantation, sugar cane plantations and so on.


  • Plantlets

These are small plants or young plants that grows via vegetative propagation from the parent plant.

Note: Vegetative propagation is a form of asexual reproduction in plants.

Please read on Methods of Plant Propagation here.


  • Plantibodies

These are recombinant antibodies that are produced from genetically modified crops.

Please read on Immunization here.


  • Plasmolysis

This is the shrinking of a living plant cell, animal cell or bacteria cell as a result of water loss from the cell cytoplasm to its environment; due to an outward osmotic water flow.


  • Plus Trees

These are trees in which their outward appearance are much bigger when compared to an average tree of the same species grown on a similar area of land.

Such plus trees may also be pest and disease resistant.


  • Pollen (Pollen Grains)

This is the male germ cell or gametophytes (or sex cell) in plants.

Pollen grains are present in the anther of a flower.


  • Pollen Rain

This is the fall of large amount of pollen grains and spores on a particular area.


  • Pollination

Pollination is the transfer of pollen (male gametes) from the anther of a flower to the stigma of a flower.

Pollination is of two types:

  1. Self Pollination: This is the transfer of pollen grain from the anther of a flower to the stigma (of the same flower or another flower) of the same plant.
  2. Cross Pollination: This is the transfer of pollen grain from the anther of a flower to the stigma of another flower on a different plant. Cross pollination may be brought about by wind, water and insects.


  • Pomology

This is a branch of botany that deals with the science or study of growing and cultivating fruit.


  • Postharvest Food Safety

This is the process of ensuring that food products from farmland are fit for human consumption.


  • Postharvest Treatment

The includes various processes like disease control, ripening initiation, preservation techniques, packing and grading of harvested crop in order to make them fresh for marketing and processing.

Please read on the Problems of Agriculture in Nigeria here.


  • Poult

A poult is a young turkey of either sex and usually not more than two months of age.


  • Poultry

Poultry consist of domestic birds raised for meat and eggs.


  • Precooling

This is the process in which large quantities of fruits or vegetables are rapidly cooled prior to loading for shipment.


  • Productive Soil

This is a soil in which the chemical, physical, and biological conditions are ideal for the economic production of certain crops in a given area.

Please read on Agricultural Land and its Uses here.


  • Primary Succession

This is the initial and natural development of the vegetation (usually plants or lichens) on a bare or barren area.

Note: Lichen is a symbiotic association between algae and fungi.


  • Pullet

A pullet is a female chicken less than 1 year old.


  • Q fever

This is an acute disease caused from infected dust and passed into cattle, sheep, goats and domestic animals.

The bacteria Coxiella burnetti present within these domestic animals are responsible for Q fever.

Please read on Micro-organism causing Diseases here

Please read on Agricultural Terms and Definitions, (Letter A) here

Please read on Agricultural Terms and Definitions, (Letters I - O) here

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 7 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.

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Amazing facts in Agricultural Science

🥜 Peanuts 🥜 are legumes and not nuts

Although plants neither see nor hear, they can recognize their siblings and even give them preferential treatments 🤔

Squirrels do plant more 🌲 trees 🌲 (through their actions) than an average human in their lifetime. They often hide their acorns and nuts underground and forget about them 😁

🐄 Cows 🐄 have got the ability to walk up stairs, but not down stairs

A group of cows 🐄 🐄 🐄  is called a team, drove or herd.

People just prefer to call them herd

NOTABLE POINTS IN Agricultural Science

Below are some common types of erosion:

  • Water Erosion: It is caused by rainfall and flooding on the topsoil. As a result of water erosion, some layers of the topsoil are lost.

  • Sheet Erosion: When an entire surface of land becomes eroded at a uniform (equal) level, such is referred to as sheet erosion.

    Sheet Erosion - Len Academy

  • Wind Erosion: It results from the actions of wind on a bare land. Wind erosion is often seen in deserts. Overgrazing and lack of vegetation cover will also enhance wind erosion on topsoil.

​​​Please read more on types of soil erosion here.

Soil erosion is defined as a process through which the topsoil is removed or moved from one point to another by agents like wind, water, man and animals.

Soil erosion occurs naturally (wind and water) and may also be facilitated by living organisms.

Soil erosion is more likely to occur on a sloppy land and land with no vegetation cover. When this occurs, the nutrient rich layer of the topsoil is washed away; and this ultimately results in fewer plants growing on such eroded soil.

Please read more on soil erosion here

There are about 630 different kinds of carnivorous plants.

Carnivorous plants are plants that derive some or most of their nutrients by consuming small animals, especially insects.

Carnivorous plants are also referred to as insectivorous plants.

Some example of carnivorous plants include sundew and Venus flytrap.

Please read more on Carnivorous Plants here