Which one of the followings is an organic chemical fertilizer?

Bio-fertilizers are

The moisture content of the vermibed for vermicomposting should be maintained around

Sugarcane trash can be easily composted by adding

The quantity of urea to be applied for one acre of rice when recommendation is 120 kg N/ha is

Carrier material used in biofertilizers should possess following qualities
a. Non-polluting b. Non-toxic c. Bio-degradable d. High water holding capacity

The green leaf manure having about 4.6% K₂O content is

A compound containing a single primary nutrient is called ______ fertilizer