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CHEMISTRY IN SOCIETY: Fertilizers
ENVIRONMENTAL EDUCATION: Chemistry In Society - Extraction Of Metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Alkali metals and alkaline earth metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Identification Of Ions
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Salts
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Transition metals
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Formulae, Moles And Equations
MATTER: PROPERTIES AND TRANSFORMATION: Rates Of Reaction
MATTER: PROPERTIES AND TRANSFORMATION: Reversible Reactions
PRINCIPLES OF CHEMISTRY: Electrochemistry
PRINCIPLES OF CHEMISTRY: Gaseous State

Ammonium phosphate is [(NH₄)₃ PO₄] is a very good fertilizer because:

It supplies both nitrogen and phosphorus that plants need for their growth and protein synthesis.

It is insoluble.

It is cheap.

It is soluble.

The bacteria that carry out the conversion of atmospheric nitrogen into soil nitrates are called:

Soil bacteria e.g. rhizobium.

Denitrifying bacteria e.g. rhizobium.

Nitrifying bacteria e.g. rhizobium.

Plant bacteria.

The fertilizer 20:10:10 represents:

An PNK compound fertilizer.

An NKP compound fertilizer that is made up of 20% nitrogen, 10% phosphorus and 10% potassium.

An NPK compound fertilizer that is made up of 20% nitrogen, 10% phosphorus and 10% potassium.

An NPS compound fertilizer that is made up of 20% nitrogen, 10% phosphorus and 10% sulphur.

The effectiveness of a fertilizer depends on __

The cost

The percentage of nitrogen it contains

The solubility in water

All are correct

Nitrogenous fertilizers include:

Ammonium sulphate [(NH₄)₂ SO₄].

All are correct.

Ammonium phosphate [(NH₄)₃ PO₄].

Urea [(NH₂)₂ CO].