Related Questions

Potassic fertilisers
A Are useful during early stage of the plant growth
B Stimulate early growth and accelerate seeding
C Help in development of starches of potatoes and grain
D None of these
Potassic fertiliser is graded based on its __________ content.
A KCl
B K2O
C KNO3
D K2SO4
Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth?
A Nitrogeneous fertiliser
B Potassic fertiliser
C Phosphatic fertiliser
D None of these
Which of the following is not a measure component necessarily to be present in fertilisers?
A Nitrogen
B Potassium
C Phosphorous
D Sulphur
Which of the following fertilisers contains the least percentage of nitrogen?
A Liquid ammonia
B Urea
C Ammonium phosphate
D Ammonium sulphate
Commercial fertilisers are available mostly in the form of
A Powder
B Grannules
C Lumps
D Flakes
Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
A Nutrient supply
B Texture
C Water holding capacity
D All of the above
Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by
A Steam reforming of naphtha and cracking of natural gas
B Electrolysis of water
C Cryogenic separation of hydrogen from coke oven gas
D All of the above
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen?
A Calcium nitrate
B Calcium ammonium nitrate (CAN)
C Urea
D Ammonium sulphate
Which one of the following elements is least likely to be found in commercial fertilisers?
A Nitrogen
B Phosphorous
C Potassium
D Silicon

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