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Organic farming - class-IX

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Study the following ststements regarding organic farming and select the correct ones.
(i) It utilities genetically modified crops like Bt cotton.
(ii) It uses only naturally produced inputs like compost and biofertilisers.
(iii) It does not use pesticides and urea.
(iv) It produces vegetables rich in vitamins and minerals.

  1. (i) and (ii)

  2. (iii) and (iv)

  3. (ii) and (iii)

  4. (ii), (iii) and (iv)


Correct Option: C
Explanation:

In organic farming, farmers use manures, bio fertilisers, biopesticides and biocontrol agents to increase the crop production instead of using artificial fertilisers and pesticides. It does not utilise genetic engineering.

Organic farming does not include:

  1. Green manures

  2. Chemical fertilisers

  3. Farmyard manures

  4. Compost


Correct Option: B
Explanation:

Organic farming includes several methods to enhance soil fertility. In such farming, methods of biological origin are used, e.g., biopesticides, biofertilisers, IPM (Integrated Pest Management) green manure, bioherbicides, keeping pests and pathogens under control, etc. Chemical fertilisers are not used in organic farming. 

Intensive cultivation of fruits, flowers and vegetables for commercial purpose is called _______.

  1. Sericulture

  2. Pisciculture

  3. Horticulture

  4. Apiculture


Correct Option: C
Explanation:
  • Sericulture is the industrial growth of silkworm for silk. 
  • Pisciculture is the commercial breeding and raising of fish stock for consumption. 
  • Horticulture is growing flowers, fruits and vegetables at a commercial level. 
  • Apiculture is breeding of honey bees for honey production.

Horticulture deals with

  1. Production of crops

  2. Breeding of animals

  3. Study of soil

  4. Production of fruits and vegetables


Correct Option: D
Explanation:

Horticulture is the branch of science that deals with the art and technology of growing plants. It includes the cultivation of fruits, vegetables, medicinal plants, ornamental plants and other plants. Agriculture is the science that deals with the study of the production of crops. Breeding of animals is called animal husbandry. Study of soil is called pedology.

So, the correct answer is option D.

Advantages of organic farming is (are)

  1. No pollution

  2. Safe and hygienic food

  3. Maintained or better soil health

  4. All of the above


Correct Option: D
Explanation:

Organic farming produces condition for high yielding and good quality of crops. They improve the physical properties of the soil. It supports water conservation. They save energy and protect our environment. 

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

Crop rotation is an important part of organic farming. Why is monocropping problematic?

  1. The crop is vulnerable to organized crop thieves.

  2. It encourages the build-up of diseases and pests that destroy that particular crop.

  3. It does not use minerals.

  4. It is expensive.


Correct Option: B
Explanation:

Monocropping is problematic as it encourages the buildup of diseases and pests that destroy that particular crop. It decreases the total land productivity. In monocropping, the farmer is dependent on a single crop so the risk of crop failure increases which leads to economical loss.

So, the correct answer is option B.

Crop production without using chemicals is called as

  1. Crop farming

  2. Organic farming

  3. Crop rotation

  4. None of the above


Correct Option: B
Explanation:

Organic farming is a system which involves those practices which maintain the natural fertility of the soil. It avoids or largely excludes the use fertilizers, pesticides, hormones and relies upon crop rotations, crop residues, animal manures and biological system of nutrient mobilization and plant protection.

Thus, the correct answer is option B.

In the long term, which of these saves energy and protect the environment?

  1. Crop rotation

  2. Mixed cropping

  3. Organic farming

  4. Fish farming


Correct Option: C
Explanation:
Organic farming is the technique which is used for the evolution of the agricultural techniques and increase the production without the use of antibiotics, fertilizers and pesticides. Organic farming is a combination of farming with traditional methods and maintenance of livestock. This livestock includes cattle and other farm animals. This system also uses the microbial culture to enhance the soil quality and fertility. The animals and the microbes are used for the production of crops. There is no problem of pollution or leaching of the chemicals into the water system. This type of farming saves energy and money. There is no harm to the environment due to the activities performed during organic farming. 
Thus, the correct answer is option C. 

All of the following are associated with organic farming except

  1. Cross breeding

  2. Biofertilizers

  3. Biopesticides

  4. Green manure


Correct Option: A
Explanation:

Organic farming is the technique which is used for the evolution of the agricultural techniques and increase the production without the use of antibiotics, fertilizers and pesticides. There is combination of farming with traditional methods and maintenance of livestock. There is use of biofertilizers and biopesticides which include the use of live organisms for providing nutrition to the plants. Green manure is used for increasing the soil fertility. This also improves the water-holding capacity of the soil. 

Thus, the correct answer is option A. 

Identify the integrated farming of crops and livestock.

  1. Organic farming

  2. Mixed cropping

  3. Composite farming

  4. None of the above


Correct Option: A
Explanation:

Organic farming is the technique which is used for the evolution of the agricultural techniques and increase the production without the use of antibiotics, fertilizers and pesticides. Organic farming is a combination of farming with traditional methods and maintenance of livestock. This livestock includes cattle and other farm animals. This system also uses the microbial culture to enhance the soil quality and fertility. 

Thus, the correct answer is option A. 

Organic farming completely relies on

  1. Chemical fertilizers

  2. Sustainable techniques

  3. Growth hormones

  4. None of the above


Correct Option: B
Explanation:

Organic farming is the technique which is used for the evolution of the agricultural techniques and increase the production without the use of antibiotics, fertilizers and pesticides. The method completely relies on sustainable techniques like microbial inoculation which doesn't pose a threat to the environment. This system uses the microbial culture to enhance the soil quality and fertility. The activity of the microbes adds nutrients to the soil. These nutrients can be used by the plants for growth and development. The technique involves the use of cattle and other farm animals for farming. There is use of green manure, biofertilizers and biopesticides. 

Thus, the correct answer is option B. 

Consider the following statements (A-D) about organic farming

(A) Utilizes genetically modified crops like Bt cotton.
(B) Uses only naturally produced inputs like compost.
(C) It does not use pesticides and urea.

(D) Produces vegetables rich in vitamins and minerals.

Which of the above statements are correct?

  1. (B) and (C) only

  2. (A) and (B) only

  3. (B), (C), and (D)

  4. (C) and (D) only


Correct Option: A
Explanation:

A- Organic farming is the method of cultivation of crops through use of fertilizers of organic origin such as green manure, compost, bonemeal etc. It uses techniques such as crop rotation and companion plantation. Synthetic fertilizers and pesticides are strictly prohibited. 

Horticulture is related to

  1. Olericulture

  2. Floriculture

  3. Pomology

  4. All of the above


Correct Option: D
Explanation:

Horticulture has been defined as the culture of plants for food, comfort and beauty. It includes plant conservation, landscape restoration, soil management, landscape and garden design, construction, and maintenance, and arboriculture. It also includes Olericulture (science of vegetable growing, dealing with the culture of non-woody (herbaceous) plants for food), Floriculture, or flower farming(discipline of horticulture concerned with the cultivation of flowering and ornamental plants for gardens and for floristry, comprising the floral industry) and Pomology(is a branch of botany that studies and cultivates fruit). Hence, the horticulture is related to olericulture, floriculture and pomology.

So, the correct answer is 'All the above'.

Horticulture deals with management of

  1. Farms

  2. Orchards and gardens

  3. Trees and shrubs

  4. Forests


Correct Option: B
Explanation:

Horticulture is the science or art of cultivating fruits, vegetables, flowers, or ornamental plants. It impacts our lives on a daily basis by providing nutritious fruits and vegetables, offering visual enjoyment, and promoting recreational activities.

So the correct option is 'Orchards and gardens'.

Growing trees and shrubs in small pots is

  1. Bonsai

  2. Culture

  3. Green gardening

  4. Tree culture


Correct Option: A
Explanation:

Bonsai is an art of growing trees and shrubs in small pots or containers. It is originated from Chinese horticulture practice. In this, ornamental dwarf plants are grown in pots. Once potted, it is regularly shaped to limit its growth.

Thus, the correct answer is option A.

Vegetable cultivation comes under

  1. Horticulture

  2. Agriculture

  3. Olericulture

  4. Floriculture


Correct Option: C

Instead of fertilizers, organic farming uses

  1. Compost and manure

  2. Green manuring

  3. Crop rotation and intercropping

  4. All the above


Correct Option: D
Explanation:

To overcome the problems associated with the overuse of chemical fertilizers ,the farmers have now switched to organic farming . It is the process of use of natural methods like bio-fertilizer , manure , vermicompost & crop rotation etc.

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

The pesticides used in organic farming are

  1. Organochlorines

  2. Carbamates

  3. Margosa, nicotine and pyrethrum

  4. All the above


Correct Option: C
Explanation:

Margosa, nicotine and pyrethrum are natural pesticides obtained from neem, tobacco plants and chrysanthemum plants respectively.

Carbonates and organochlorides are pesticides that are manufactured using chemicals.
So the correct option is.

Hatchlings grown in nursery ponds form :

  1. Fingerlings

  2. Fries

  3. Adults

  4. Spawns


Correct Option: B

Which one of the following human activities would cause least damage to the ecosystem?

  1. Organic farming

  2. Shifting agriculture

  3. Urban expansion

  4. Cultivation of genetically engineered plants


Correct Option: A

Products of organic farming are preferred because they are

  1. Free from pollutants

  2. Costlier

  3. More delicious

  4. Large sized


Correct Option: A
Explanation:

Organic foods or products are preferred because it has high nutritional value than conventional food . The reason for this is the absence of pesticides & fertilisers .  In the absence of these , the plants boost their production of phytochemicals that strengthen their resistance to bugs and weeds .

So the correct option is ' Free from pollutants ' .

Organic farming does not employ

  1. Compost

  2. Pesticides

  3. Removal of weeds

  4. Agrochemicals


Correct Option: D
Explanation:

Organic farming is a method of crop and livestock production that involves much more than choosing not to use pesticides, fertilizers, genetically modified organisms, antibiotics and growth hormones. An agrochemical is a chemical product used in agriculture. In most cases, agrochemical refers to pesticides including insecticides, herbicides, fungicides and nematicides. Hence, agrochemicals are not used in organic farming because of their chemical nature .
So the correct option is ' Agrochemicals ' .

Consider the following statements (A-D) about organic farming
(a) utilizes genetically modified crops like Bt cotton
(b) uses only naturally produced inputs like compost
(c) does not use pesticides and urea
(d) produces vegetables rich in vitamins and minerals.
Which of the given statements are correct?

  1. B, C and D

  2. C and D only

  3. B and C only

  4. A and B only


Correct Option: C
Explanation:

Organic farming uses only naturally produced inputs like compost and organic farming doesn't use pesticides and urea.

So, the correct option is 'B and C only'

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