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Fertiliser Technology

Fertiliser Technology
Which of the following does not come under the category of 'micro-nutrient' for plant growth?

Iron
Chlorine
Boron
Carbon

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Fertiliser Technology
Nitrolime is

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

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Fertiliser Technology
Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in

Substantially wet non-flowing and sticky product
Biuret formation
Non-spherical prills
Low bulk density product

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Fertiliser Technology
Reaction of orthophosphoric acid with soda ash produces

Nitrophosphate
Tributyl phosphate
Sodium tripolyphosphate (STPP)
Tricresyl phosphate

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Fertiliser Technology
In calcium ammonium nitrate (CAN) fertil-ser

Ammoniacal nitrogen is quick acting
None of these
Nitrate nitrogen is slower acting
Nitrate nitrogen is quick acting

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Fertiliser Technology
Rock phosphate used for the production of phosphatic fertiliser is mined at

Talchar (Orissa)
Bailladella (M.P.)
Kiriburu (Bihar)
Amjhor (Jharkhand)

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