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

Related Mcqs:

-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...

Maximum nitrogen percentage is in________________?

A. Ammonium sulphate B. Calcium ammonium nitrate C. Urea D. Liquid ammonia...

Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because______________________?

A. It is hygroscopic and explosive in nature B. It is highly acidic in nature C. It is a liquid at room temperature D. Its nitrogen content is very less...

Pick out the correct statement?

A. Reaction of NH3 with HNO3 to produce (NH4)2NO3 is endothermic B. With increase in NH3/CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate C. Biuret (an intermediate during urea manufacture) is toxic to seeds and animals D. Both B. and C....

pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?

A. 4-5 B. 7-8 C. 9-10 D. 12-13...