Question

plz help it is very important
Questions of class 9 last chapter
1. Differentiate between manure and fertilizer.
2. What are the different types of cropping patterns? Write the
advantages of mixed cropping.
3.What is animal husbandry? Write different types of livestock
managements.
a) Cattle farming
b) Poultry farming
c) Fish production
d) Bee keeping

Answer 1

Answer:

good but iam  not a nine class student I try  my best

Explanation:

Answer 2

1 )  Manures:-

1. Manures are natural substances obtained by decomposition of plants and animals.

2. They are rich in humus.

3. They are not nutrient specific.

4. Manure is prepared in fields and farmyards.

5. They are absorbed slowly by the plants because they are not easily soluble in water.

6. Manure does not cause pollution.

Fertilizer:-

1. It is a chemical substance prepared in a laboratory.

2. They are rich in plant nutrients like nitrogen, phosphorus and potassium.

3. They are nutrient specific​.

4. Fertilizer are prepared in factories.

5. Being soluble in water it is readily absorbed by the plants.

6. Fertilizers cause water and soil pollution.

2 )  It also increases soil fertility, whereas crop rotation prevents soil depletion, increases soil fertility, and reduces soil erosion. Both these methods reduce the need for fertilizers. It also helps in controlling weeds and controls the growth of pathogens and pests in crops.