Fertilizers are broadly classified into…………. Groups.
a) two
b) three
c) four
d) five
Fertilizers are broadly classified into ………
a) organic
b) inorganic
c) ionic
d) both a and b
Organic fertilizers are derived from…….
a) plants materials
b) animals materials
c) chemicals
d) both a and b
Manure, compost and seaweed are good example of ……
a) organic fertilizers
b) inorganic fertilizers
c) biological fertilizers
d) chemical fertilizers
Hay, leaves, bark, wood chips, seed hulls and corn husks are ………
a) organic fertilizers
b) inorganic fertilizers
c) biological fertilizers
d) chemical fertilizers
Organic fertilizers improve the structure of ….
a) water
b) air
c) soil
d) all
