Organic Farming

Q.

What is advantage of using biofertilizers over fertilizers?

Q.

What is algal biofertilizer?

Q. Why do honeybees collect and store nectar?

1. Nectar is not available throughout the year.
2. Nectar protects the honeybees from predators.
3. Nectar is used as a poison to kill invaders.
4. Humans can use it throughout the year.

Q.

What is organic farming? [1 MARK]

Q.

Read each set of terms and identify the odd set. (a) Cow, milk, butter (b) Hen, meat, egg (c) Goat, milk, meat (d) Plant, vegetable, buttermilk.

Q.

How are Bacteriophages cultivated?

Q.

Replacing chemical fertilizers with organic manure is good for soil more than for plants. Explain

Q.

Write five importance of agriculture?

Q. The farming technique where there is minimum or no use of chemical fertilizers, herbicides and insecticides is called ___.

1. Organic farming
2. Genetic manipulation
3. Animal husbandry
4. Cattle farming

Q.

The highest milk yielding breeds of buffaloes of Gujarat are ___________

1. Murrah

2. Mehsana

3. Jersey

4. Dangi

Q.

Green manure enriches soil in-

1. Carbon and oxygen

2. Nitrogen and phosphorus

3. Nitrogen and sulphur

4. Nitrogen and calcium

Q.

The common biofertilizer used in organic farming is:

1. Margosa

2. Pyrethrum

3. Green manure

4. Nitrogen fixing bacteria and cyanobacteria

Q.

With respect to the following statements, choose the correct option.

(i) Food security depends on both, the availability of food and access to it.
(ii) Mixed farming degrades the nutrient quality of the soil.
(iii) Fertilisers are commercially produced plant nutrients.

1. Only statement (ii) is correct.

2. Statement (i) and (ii) are correct.

3. Only statement (iii) is correct.

4. Only statement (ii) is incorrect.

Q.

Which of the following cannot be used in organic farming

1. Farm-wastes

2. Bio-pesticides

3. Crop rotation

4. Herbicides

Q. Fill in the blanks:
19) Food grown on organic farming principles is called food.

Q. State true or false:
Organic farming is the method of farming where synthetic chemicals are used.

Q.

Which of the following is a variety of silkworm reared in sericulture?

1. Muga

2. Muscovy

3. Athulya

4. Naran

Q.

Fill in the blank with a suitable term:

Farming without the use of chemical fertilizers and insecticised/pesticides is known as_____________.

Q.

The farming technique in which there is no or minimal use of chemical fertilisers, herbicides, and insecticides is called___ farming.

Q. Which among the following group contains only animal products?

1. Eggs, vegetable and milk
2. Eggs, meat and paneer
3. Spinach, rice and pulses
4. Vegetable, rice and meat

Q.

Name two main resources of food.

Q.

The common biofertilizers used in organic farming are

1. Margosa

2. Nitrogen fixing bacteria and cyanobacteria

3. Pyrethrum

4. Green manure

Q. Why is organic farming different from general farming?​

1. Due to no use of chemicals​
2. Due to the use of pesticides​
3. Due to the use of cropping pattern​

Q. The farming technique in which there is minimal or no use of chemicals is termed as farming.

Q. A leguminous plant grown in an autoclaved, sterilized soil fails to produce root nodules because

1. Autoclaved soil is not good for root growth
2. Autoclaved soil is devoid of bacteria
3. Autoclaving reduces $N_2$ content of soil
4. Plants cannot form root hairs in such a soil

Q.

What is manure?

Q.

When culturing of fish is combined with poultry farming or piggery, it is called composite fish culture.

1. True
2. False

Q. Which type of farming is used to avoid the disadvantage of chemical fertilizers?

1. Organic farming
2. Extensive farming
3. Intensive farming
4. Inorganic farming

Q. Which of the following is a new bio-fertilizers?

1. Nitrates
2. Compost
3. Green Blue Algae
4. Farmyard manure

Q. Write down the objectives of Eleventh Five Year Plan.