Tag: modern agriculture

Questions Related to modern agriculture

Which of the following technique is used for rooftop gardening?

evs modern agriculture agricultural practices in india different types of farming and agriculture various agricultural practices

  1. Hydroponics

  2. Aeroponics

  3. Green roof

  4. All of the above

Show answer
Correct Option: D
Explanation:

(A)Hydroponics is also called as a floating-raft system in which farming is done without using soil on a nutrient-rich solution. For Example, Mint, Tomato, Potato, Lettuce, Basil etc.

(B)Aeroponics is an indoor gardening method in which plants are grown in a mist environment. Tomato, Pepper, Cucumber, e.t.c are some of the examples
of Aeroponics.
(C)Green Roof Is a system of planting trees covered with vegetation and growing medium. Small grasses, Herbs, Flowering Plants, e.t.c are some of the examples of the Green roof.
So, the correct option is 'All of the above'.

Net house farming provides protection against

evs modern agriculture agricultural practices in india different types of farming and agriculture various agricultural practices

  1. Insects

  2. Heat

  3. Strong wind

  4. Both A and C

Show answer
Correct Option: D
Explanation:
A Net house is a structure enclosed by agro nets or any other woven material to allow required sunlight, moisture and air to pass through the gaps. It creates an appropriate micro climate conducive to the plant growth. It is also referred as shade net house or net house.Uses of net house are as follows-
  • Helps in cultivation of flower plants, foliage plants, medicinal plants, vegetables and spices.
  • Used for fruit and vegetable nurseries as well as for raising of forest species etc.
  • Helps in quality drying of various agro products.
  • Used to protect against pest attack.
  • Protects from natural weather disturbances such as wind, rain, hail and frost.
  • Used in production of graft saplings and reducing its mortality during hot summer days.
So, the correct answers are both ' Insects & Strong wind'

Green house crops such as tomatoes and bell pepper produce higher yields. This is due to.

evs modern agriculture agricultural practices in india different types of farming and agriculture various agricultural practices

  1. Tomatoes and bell pepper are not $C _3$ plants

  2. Due to diffused light in green house

  3. $CO _2$ is limiting factor to photosynthesis

  4. $CO _2$ enriched atmosphere leads to higher yield

Show answer
Correct Option: D
Explanation:
  • Growing crops in greenhouse produce higher yields due to a lot of reasons like - temperature control, carbon dioxide factor, reduced pest and disease exposure and humidity. 
  • The concentrated carbon dioxide results in larger leaves, stronger plant stems and possible early flowering and fruiting.
  • So the correct option is 'CO2 enriched atmosphere leads to higher yield'.

Rooftop gardening are mainly found in urban areas because

evs modern agriculture agricultural practices in india different types of farming and agriculture various agricultural practices

  1. It absorbs heat radiated in the atmosphere.

  2. In urban areas, there is a shortage of space.

  3. It reduces rate of pollutants in the atmosphere.

  4. All of the above.

Show answer
Correct Option: D
Explanation:

Roof gardening is a type of garden which is started on the roof of the building. It is an ideal way of urban gardening.  In urban areas, local and fresh food can be available due to this gardening. To make cities more efficient and to reduce pollution. It reduces heat buildup in cities in the summer season.

So, the correct option is 'All of the above'.

Which is wrong among the following?

evs modern agriculture agricultural practices in india different types of farming and agriculture various agricultural practices

  1. Anabaena and Nostoc are capable of fixing nitrogen in free state.

  2. Root nodule forming nitrogen fixers live as aerobes under free living state.

  3. Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins.

  4. Nitrosomonas and Nitrobacter are chemoautotrophs.

Show answer
Correct Option: A

In agriculture, .......... is used for weeding and plowing, .......... is used for weeding and sowing and ........... is used for harvesting of crops. Here the implements are respectively

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Combine, seed drill and sickle

  2. Hoe, sickle and seed drill

  3. Cultivator, seed drill and sickle

  4. Hoe, seed drill and sickle

Show answer
Correct Option: A
Explanation:

1) In agriculture ploughing is process of turning up of the soil before sowing to increase the soil fertility.

  • This helps to turn organic matter in the soil to increase decomposition and add nutrients from the organic matter to the soil.
  • It is done using a plough.
2) Sowing is the process of planting, or sowing the seeds into the field.

  • It is done using seed drill.

3) Harvesting is the process of gathering a ripe crop from the fields.

  • Traditional tool used in harvesting was sickle, modern machine used in havesting is combine harvester.

.......... is the first step to be followed before growing a crop.

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Preparation of soil

  2. Harvesting

  3. Weeding

  4. None of the above

Show answer
Correct Option: A
Explanation:

A.Preparation of soil - it is bed to grow or cultivate soil.

B.Harvesting - Cutting of plants in a crop.
C.Weeding - removal of weeds in a crop
So, the correct option is 'preparation of soil'.

Mulching is a process that helps in

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Weed control

  2. Soil fertility

  3. Moisture conservation

  4. Improvement of soil structure

Show answer
Correct Option: C
Explanation:

Mulch is a protective layer of a material layered on top of soil. Mulch can be made of organic materials such as grass, straw, bark, etc. They can also be inorganic such as stones, brick pieces and plastic. Mulching prevents water evaporation from soil hence leads to moisture conservation. Thus, the correct answer is option C.

Which of the following wood is not used for making handle of spade? 

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Sheesham

  2. Babool

  3. Neem

  4. Mango

Show answer
Correct Option: A
Explanation:
Sheesham is an expensive wood and an endangered species of wood trees. It is thus not easily available and thus cannot be used to make handles of tools. It is frequently used to make furniture but requires permission from the government because of the ban on the use of sheesham to protect the species.
All other trees are common trees and can be used to make the handle of a spade.
The correct answer is 'sheesham'.

Name the tool used for scraping of soil.

biology modern agriculture modern equipments in agriculture soil quality methods of crop production

  1. Hoe

  2. Plough

  3. Both A and B

  4. Cultivator

Show answer
Correct Option: C
Explanation:

(A) Hoe- It is a tool which is used for digging and weeding made of a thin metal blade and a long handle. It is also used to break up the surface of the ground.

(B) Plough- It is used by the farmers for cultivation of the soil, and for sowing seed and making furrows. It is made up of a blade at the end which digs the field for planting.
(D) Cultivator- It is used to prepare a proper seedbed for the crop to be buried in. It is also used for loosening the soil.
So, the correct option is 'Both A and B'.