Abiotic and Biotic Factors for Storage Loss

Q.

Describe the factors responsible for grain loss during storage?

Q.

Preventive and control measures adopted for the storage of grains include

1. strict cleaning

2. proper disjoining

3. fumigation

4. all of the above

Q.

How do storage grains losses occur ??

Q.

What factors may be responsible for losses of grains during storage?

Q.

How do storage grain losses occur?

Q.

Explain the various factors which are responsible for the loss of stored food grains.

Q.

Large amount of foodgrains gets spoiled every year in India due to improper storage of foodgrain. How can this be avoided?

Q.

Name the following:

1. Seed borne diseases
2. Airborne diseases

Q. Define biotic factors. Name some biotic factors which damage the food material during storage.

Q.

Name the biotic and abiotic factors that affect crop production.

Q.

Assertion (A): Grains should be dried properly before storing.

Reason (R): Moisture content increases the chances of spoilage due to micro-organisms.

1. Both A and R. are true and R is the correct explanation for A.

2. Both A and R are true and R is the not the correct explanation for A.

3. A is true and R is false

4. A is false and R is true

Q.

Write down two harmful effects of biotic factors on food grains.

Q.

As an incharge of a grain astore, how will you find out the presence of pests ?

Q.

Among the following which is the major cause of crop failure in India?

1. Monsoon failure

2. Pest attack

3. Adequate supply of fertilizers and manures

4. Inadequate supply of fertilizers and manures

Q. Explain biotic and abiotic factors that affects crop yield.

Q.

Question 5
How do storage grain losses occur?

Q.

The pesticides residue found in food grains like wheat and rice

1. Can be removed by washing

2. Cannot be removed by washing

3. Can be removed by other means

4. Can be easily removed

Q. What factors may be responsible for the loss of grains during storage?

1. Rodents
2. Bacteria
3. Temperature
4. None of these

Q. What factors maybe responsible for losses of grains during storage

Q.

Mention two factors which affect food grains.

Q. Question 5
How do storage grain losses occur?

Q. What factors may be responsible for losses of grains during storage explain with example. [2 Marks]

Q. Which of the following is the living factor that affects crop production?

1. Pests
2. Temperature
3. Rainfall
4. Salinity

Q. Biotic factor which destroys food grains is :

1. bacteria
2. humidity
3. moisture
4. frost

Q.

Which of the following conditions give the most benefits? Why? [3 MARKS]
(a) farmers use high - quality seeds, do not adopt irrigation or use fertilizers.
(b) farmers use ordinary seeds, adopt irrigation and use fertilizers.
(c) farmers use quality seeds, adopt irrigation, use fertilizers and use crop protection measures.

Q.

What factors may be responsible for the losses of grains during storage?

Q.

How do storage grain losses occur?

Q.

How the food grains should be dried on commercial basis ?

Q. Question 2
What factors may be responsible for losses of grains during storage?

Q.

Which factors may be responsible for losses of grains during storage?