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Fertiliser Technology

Fertiliser Technology
Action of phosphoric acid on rock phosphate produces

Nitrophosphate
Triple superphosphate
Diammonium phosphate
Superphosphate

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Fertiliser Technology
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH₃

HNO₃ & limestone
CO₂ & H₂SO₄
HNO₃ & NH₄Cl
CO₂ & KNO₃

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Fertiliser Technology
Yield of elemental phosphorous from rock phosphate is about __________ percent.

1-2
15-25
40-45
60-65

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Fertiliser Technology
Nitrolime is

Calcium nitrate
Calcium ammonium nitrate
A mixture of nitric acid and lime
A mixture of ammonium nitrate and calcium nitrate

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Fertiliser Technology
Maximum nitrogen percentage is in

Ammonium sulphate
Liquid ammonia
Urea
Calcium ammonium nitrate

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Fertiliser Technology
Conditioners like finely divided peat are added to the fertiliser to

Counteract burning
Produce bulk
Avoid caking & hardening
Increase its solubility

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