Nutrient Content of Manures and Fertilizers

 

Nutrient content

Material

Nutrient content (%)

N

P2O5

K2O

Ammonium sulphate

20.5

-

-

Ammonium sulphate nitrate

26.0

-

-

Ammonium nitrate

33.5

-

-

Ammonium phosphate

20.0

20.0

-

Calcium ammonium nitrate

20.5 / 25.0

-

-

Nitrate of soda

16.5

-

-

Urea

46.0

-

-

Superphosphate (single)

-

18.0

-

Superphosphate (double)

-

35.0

-

Superphosphate (triple)

-

46.0

-

Mussooriephos

-

18-20

-

Rajphos

-

18-20

-

Muriate of potash

-

-

50 / 60

Bone meal

3.5

21.0

-

Fish meal

4.1

3.9

0.3-1.5

Poultry manure

1.2-1.5

1.4 -1.8

0.8-0.9

Sheep manure

0.8-1.6

0.3-0.4

0.3-0.4

FYM

1.0

0.5

1.0

Compost

0.5

0.4

0.8

Groundnut cake

7.0

1.5

1.5

Castor cake

4.3

2.0

1.3

Neem cake

5.0

1.0

1.5

Gingelly cake

6.2

2.0

1.2

Coconut cake

3.0

1.9

1.8

Note: Composition of organic manures vary widely

References Kerala Agricultural University. 2011. Package of Practices Recommendations: Crops.14th edition. Kerala Agricultural University, Thrissur- 360 p.