Potassic fertilisers do not promote the development of ______________________?

Related Mcqs:

1. Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth ?

   A. Nitrogenous fertiliser
   B. Potassic fertiliser
   C. Phosphatic fertiliser
   D. None of these

2. Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?

   A. Nitrogenous fertilisers
   B. Phosphatic fertilisers
   C. Potassic fertiliser
   D. None of these

3. 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

4. Potassic fertiliser is graded based on its ______________ content?

   A. KCl
   B. K2O
   C. KNO3
   D. K2SO4

5. 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

6. -10-5 fertilisers mean that they contain______________?

   A. 5, 10, 5% respectively of N2, P2O5 and K2O
   B. Only 5 to 10% active fertiliser constituents

   C. 5 to 10% filler & carrier of soil conditioners
   D. None of these

7. 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 A., B. and C.

8. Which of the following is not a measure component necessarily to be present in fertilisers ?

   A. Nitrogen
   B. Potassium
   C. Phosphorous
   D. Sulphur

9. Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the__________________?

   A. Osmotic pressure of the soil water becomes less than that of the plant sap
   B. Soil becomes too alkaline
   C. Osmotic pressure of the soil water becomes higher than that of the plant sap
   D. Soil becomes too acidic

10. Which of the following fertilisers contains the least percentage of nitrogen ?

    A. Liquid ammonia
    B. Urea
    C. Ammonium phosphate
    D. Ammonium sulphate