Nutrient Management

Which nutrient is NOT an example for mirco-nutrients?

• Potassium (K)

• Iron (Fe)

• Zinc (Zn)

• Boron (B)

What are the advantages of organic farming?

Answer explanation

a) Improves the water holding capacity in sandy soil.

b) It preserves soil fertility.

c) Chemicals have no harmful impact on living organisms

d) Pollution of the air, water, and soil does not occur.

Manure contains _______ quantities of organic matter and also supplies ______ quantities of nutrients to the soil

Using fertilizers in farming is an example of

• No cost production

• Low cost production

• High cost production

• None of these

Arrange the following statements in correct sequence of preparation of green manure

(a) Green plants are decomposed in soil

(b) Green plants are cultivated for preparing manure or crop plant parts are used

(c) Plants are ploughed and mixed into soil

(d) After decomposition it becomes green manure.

• c-d-a-b

• c-a-d-b

• b-c-a-d

• a-d-b-c

Which one of the following nutrients is NOT available in fertilizers?

• Zinc

• Phosphorous

• Iron

• Potassium

• Copper