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
Related Mcqs:
- Potassic fertiliser is graded based on its ______________ content?
A. KCl
B. K2O
C. KNO3
D. K2SO4 - A Potassic fertiliser contains 50% K2O. It could be _________________?
A. Potassium sulphate
B. Potassium chloride
C. A mixture of NaCl + KCl
D. None of these - Potassic fertilisers do not promote the development of ______________________?
A. Stems & leaves during early stage of plant growth
B. Starches of potatoes & grains
C. Sugar of fruits & vegetables
D. Fibrous materials of plants - The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is _____________ fertiliser?
A. Nitrogenous
B. Phosphatic
C. Potassic
D. None of these - Electric furnace method for production of phosphorous uses phosphate rock and _________________________?
A. Phosphoric acid
B. Coke
C. Sulphuric acid
D. Silica and coke - Low grade phosphate rock can be used in electrical furnace, because__________________?
A. Of the better CaO/SiO2 balance for slag formation
B. CaO content is less
C. It is cheap
D. It produces low cost product - A fertiliser plant is classified as a gas based fertiliser plant, when it uses ______________ gas as a source of hydrogen for the manufacture of ammonia?
A. Coke oven
B. Producer
C. Natural
D. Coal - Effectiveness of a fertiliser is independent of the ___________________?
A. Nature of soil
B. Type of crop
C. pH of soil
D. None of these - Reaction of phosphate rock with 98% H2SO4 produces ______________________?
A. Ortho-phosphoric acid
B. Superphosphate
C. White phosphorous
D. None of these - Nitrogen content in ammonium sulphate (a fertiliser) is around ______________ percent?
A. 5
B. 20
C. 50
D. 65
