Agricultural Science

Agricultural land, types and uses

len Alfred Ajibola - Thu, 02nd May, 2019 @ 9:17 AM

Topics in Agricultural Science

Importance of forest: Forest reserves in Nigeria Wildlife reserves in Nigeria and its importance 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 Definitions and Meanings of Agricutural terms (P - Q) 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


Academic Questions in Agricultural Science

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

Cordage is made from _____ crop.

  • A. Food

  • B. Fibre

  • C. Ornamental

  • D. Oil

  • E. Cash

  • F. Vegetables and Spice

_____ is defined as the solid and arable part of the earth where agricultural activities are be carried out.

  • A. Soil

  • B. Farmland

  • C. Agricultural land

  • D. Biosphere

  • E. Open land

  • F. Planting and grazing land

Gymnosperms and angiosperms are seed bearing plants under the division spermatophyta?

  • A. True

  • B. False

Which of the following is false concerning gymnosperms?

  • A. Cones are present

  • B. Sepals are present

  • C. Petals are absent

  • D. Only seeds are produced

  • E. Sporophyll form the cones

  • F. In seed formation, the ovules aren't present in the ovary

Which of the following statement is incorrect concerning seeds?

  • A. The ovary develops into the seed after fertilization

  • B. The embryo in the seed develops into a young plant

  • C. The seed's endosperm serve as a source of food reserve for the developing embryo

  • D. A seed has its own genotype

  • E. Seeds are products of sexual reproduction

  • F. Apomictic seeds aren't produced sexually and the hawkseed is an example

The _____ is the reproductive organ in plant's sexual reproduction.

  • A. Pollen grain

  • B. Ova

  • C. Sperm

  • D. Flower

  • E. Fruit

  • F. Seed

In flowering plants, fertilization occurs when the _____ comes into contact with the ova (as genetic materials are eventually exchanged).

  • A. Sperm

  • B. Endosperm

  • C. Exosperm

  • D. Stigma

  • E. Ovule

  • F. Pollen grain

The fusion of sperm and ova in animals leads to the formation of _____.

  • A. Foetus

  • B. Embryo

  • C. Ovary

  • D. Neonate

  • E. Zygote

  • F. Egg

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What is agricultural land:

Land is a free gift of nature and it's included as one of the three most important parts of the earth; the others being water and air.

On earth, land is often referred to as the lithosphere. Consequently, the lithosphere is generally termed as that solid part of the earth where life is found. However, it is noteworthy to state that an agricultural land is a part of the lithosphere.


Agriculture land can be defined as the solid and arable part of the earth where agricultural activities are carried out.

Agricultural activities include the growing of crops and rearing of animals.

You can read on the methods of plant propagation here.

Meanwhile, understand that agricultural activities can also be carried out on water.

 

Uses of Land

From the introduction above, land may be summarised to serve main 2 purposes. These are

  1. Agricultural purposes
  2. Non Agricultural purposes

According to the edaphologists (those who are concerned with how the soil affect plants), it is believed that land should be used for agricultural purposes.

On the other hand, the pedologist are of the opinion that land should be used for non agricultural purposes.

Generally, non agricultural purposes of land can be put into 4 uses. These are:

  1. Residential use of land
  2. Commercial use of land
  3. Transportation
    Please read on land mode of transportation here.
  4. Recreational use of land

However, it is the physical and biological characteristics of land that suggests how it may be used; for instance, land with fertile soils are ideal for agricultural activities and may be likely used for agricultural purposes.

You can read on the problems of agriculture here.

 

Types of Agricultural Land

Agricultural land can be classified under the following headings:


  • Land for the cultivation of crops

A crop is a cultivated plant that is grown for income or subsistence.

Please read more on the differences between plants and crops here.


Classes of Crops

Crops can be generally put into 6 categories.These are:

  1. Food Crop: They are crops grown for human consumption. Examples are yam, millet, potatoes and beans.
  2. Fibre Crop: They are grown for textile and cordage (rope). Cotton is an example of fibre crop.
  3. Ornamental Crops: They are grown for gardening and beautification purposes. Examples are pampas grass and roses.
  4. Oil Crops: They are grown for their oil. Examples are soyabean, coconut, cottonseed and corn.
  5. Industrial Crops: They are grown for various industrial reasons, and are subsequently used as raw materials in production. Examples are rubber and cotton crops.
  6. Cash Crop: They are grown to generate income and foreign exchange. Examples are cocoa and rubber.

Land utilized for the cultivation of crops must be properly managed in a manned that constantly preserve its nutrients. For this reason, agricultural practices like crop rotation, irrigation farming, bush fallowing, fertilizer and manure application should be encouraged in order to retain and improve soil fertility.

Please read on agricultural tools and their uses here.

 

  • Land for rearing of animals

A variety of animals are reared in agriculture. Forms of animal rearing include:

  1. Cattle, sheep and goat farming: The rearing of cattles sheep and goats.
  2. Snailery: The rearing of snails.
  3. Poultry Farming: The rearing of birds such as chickens, turkeys, peacocks, ducks and geese.
  4. Pisticulture: The rearing of fishes.
    You can read on how to start a home based fish farming here.
  5. Apiculture or BeeKeeping: The rearing of bees.

Note: Agricultural Science as a subject has got its various technical terms.

Please read on the various agricultural terms and meanings here.

 

  • Land for wildlife reserve

A wildlife reserve is a region where different kinds of wild animals are kept and protected in order to avoid their extinction; while also aiming to generate income from them.

Animals preserved as wildlife include lions, elephants, crocodiles and snakes.

Understand that the land required for wildlife do not necessarily need to be fertile; neither should it be occupied by numerous trees (as seen in a forest).

please read on the importance of wildlife and examples of wildlife reserves in Nigeria here.

 

  • Land for forest

A forest is an ecosystem dominated by a variety of trees and animals.

The land required for the evolution of a forest does not have to be too fertile. Also, it will do no harm if the land is prone to erosion.

Please read on the importance of forest and examples of forest reserves in Nigeria here

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 10 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. It is shown below:
    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.

Examples of carnivorous plants include sundew and Venus flytrap.

Please read more on carnivorous plants here