Case Study of Organic Farming

Q. Choose a set of secondary metabolites.

1. Caffeine and glucose
2. Strychnine and valine
3. Cellulose and codeine
4. Anthocyanin and chlorophyll

Q.

Is hydroponics organic farming?

Q.

QUES. Which one of the following is not used in organic farming?

A. Snail

B. Earthworm

C. Glomus

D. Oscillatoria

Q.

An organism that can be used for making manure is

1. earthworms

2. house flies

3. eagle

4. crow

Q. Mutualism is a type of interspecific interaction in which both the interacting species are benefitted.

Match column I with column II and choose the correct option.

Column I	Column II
A. Benefit to mycobiont from phycobiont	1. Absorption of mineral nutrients from the soil
B. Benefit to plants in mycorrhizal association	2. Pollination
C. Benefit to female wasp from fig tree	3. Food
D. Benefit to Ophrys from bees	4. Place to safely deposit eggs

1. A-1, B-2, C-3, D-4
2. A-1, B-3, C-4, D-2
3. A-3, B-1, C-2, D-4
4. A-3, B-1, C-4, D-2

Q. Name two natural biopesticides.

Q. What is mutualism? Mention any two examples where the organisms involved are commercially exploited in agriculture. [2]

Q.

Give reasons for the following:

Farmers add fertilizers to their crops.

Q. Farming without the use of chemicals as fertilizers, herbicides and pesticides is known as .

Q.

Farming without the use of chemicals.

1. Organic farming

2. Hydroponics

3. Intercropping

4. Natural farming

Q. What are the benefits of organic farming ?

Q.

Give one word for the following :

Farming without the use of chemicals as fertilizers, herbicides and pesticides is known as .

Q. Neem leaves or turmeric are used specifically in grain storage as

1. Biopesticides
2. Biofertilizers
3. Both A and B
4. None of the above

Q. 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 above statements are correct?

1. (B) and (C) only
2. (C) and (D) only
3. (B), (C) and (D)
4. (A) and (B) only

Q. 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)

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

1. It is expensive
2. The crop is vulnerable to organized crop thieves
3. It does not use minerals
4. It encourages the buildup of diseases and pests that destroy that particular crop

Q. Explain giving two reasons (b) What is organic farming? Why is it suggested to switch over to organic farming?

Q. .......... is a farming system with minimal or no use of chemicals such as fertilizers, herbicides, pesticides.

1. Subsistence farming
2. Ley farming
3. Organic farming
4. Industrial farming

Q. Which of the following is used in organic farming?

1. Antibiotics
2. Microbial culture
3. Growth hormones
4. Synthetic pyrethroids

Q. In an agriculture field there is a prevalence of the following organism and crop disease which are affection the crop yield badly ________________.

1. White rust
2. Leaf and strips rust
3. Black rot
4. jassids

Q. Organic farming is raising crops through use of

1. Biofertilizers
2. Manures
3. Resistant varieties
4. All of the above

Q. Farming techniques in sustainable farming (are)

1. Ecofriendly
2. Ensures public health
3. Protect human communities and animal welfare
4. All of the above

Q. Organic farming includes :

1. Use of fertilisers and pesticides of biological origin
2. IPM (Integrated Pest Management)
3. Locally developed pest resistant varieties
4. All of these

Q. 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

Q. 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

Q. What is sustainable agriculture?

Q. Organic farming does not employ

1. Compost
2. Pesticides
3. Removal of weeds
4. Agrochemicals

Q. What is organic farming ?

Q. Identify the integrated farming of crops and livestock.

1. None of the above
2. Organic farming
3. Mixed cropping
4. Composite farming

Q. From the following list, choose three microbes, which are suitable for organic farming and is in great demand these days for various reasons. Mention one application of each one of the selected microbes.
Mycorrhiza; Monascus; Anabaena; Rhizobium; Methanobacterium; Trichoderma