Which of the following fertilisers is used as a cattle feed?
In natural gas, the C/H ratio (by weight) varies in the range of
Low grade coal is __________ to produce ammonia synthesis gas.
Effectiveness of a fertiliser is independent of the
Which nutrient in fertiliser makes the plant stems stronger and increases branching ?
Reaction of orthophosphoric acid with phosphate rock produces
Rock phosphate used for the production of phosphatic fertiliser is mined at
Gas based fertiliser plants use
Which is the best fertiliser for paddy ?
A potassic fertiliser containsK2O. It could be
Pick out the wrong statement.
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3
Biuret formation in urea is kept at minimum (< 1 %), because it is
Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth ?
Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process ?
Optimum reaction temperature in steam reforming of naphtha is __________ °C.
Flushing liquor used for cooling coke oven gas constitutes of
Temperature and pressure in ammonia converter is
CaH4(PO4)2 is the chemical formula of
Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.
Catalyst used in steam reforming of naphtha is
Catalyst used in desulphurisation of naphtha is
Pick out the correct statement.
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
Which of the following is a natural inorganic fertiliser ?
pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.
Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the
Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.
Catalyst used in the oxidation of ammonia is