Soil Science MCQ Question and Answer | Agriculture MCQ Question

A. MOP

B. DAP

C. Urea

D. Bone meal

A. Pietro de Crescenzi

B. J. B. Helmont

C. Francis Bacon

D. Jethro Tull

A. Ramanujan

B. Arthur Young

C. Baker

D. None of these

A. 0 - 15 %

B. 10 - 20 %

C. 15 - 25 %

D. 20 - 25 %

A. Neutral

B. Alkaline

C. Acidic

D. None of these

A. $${\text{ESR}} = \frac{{{\text{Exchangeable}}\left( {{\text{C}}{{\text{a}}^{2 + }} + {\text{M}}{{\text{g}}^{2 + }}} \right)}}{{{\text{Exchangeable}}\,{\text{N}}{{\text{a}}^ + }}}$$

B. $${\text{ESR}} = \frac{{{\text{Exchangeable}}\,{\text{N}}{{\text{a}}^ + }}}{{\sqrt {{\text{Exchangeable}}\left( {{\text{C}}{{\text{a}}^{2 + }} + {\text{M}}{{\text{g}}^{2 + }}} \right)} }}$$

C. $${\text{ESR}} = \frac{{{\text{Exchangeable}}\,{\text{N}}{{\text{a}}^ + }}}{{{\text{Exchangeable}}\left( {{\text{C}}{{\text{a}}^{2 + }} + {{\text{K}}^ + }} \right)}}$$

D. $${\text{ESR}} = \frac{{{\text{Exchangeable}}\,{\text{N}}{{\text{a}}^ + }}}{{{\text{Exchangeable}}\left( {{\text{C}}{{\text{a}}^{2 + }} + {\text{M}}{{\text{g}}^{2 + }}} \right)}}$$

A. Vent Hoff

B. Thornwhite

C. Darcy

D. Buckingham

A. Less than 15

B. More than 15

C. Less than 10

D. None of these

A. 100%

B. 85%

C. 50%

D. 2%

A. Muriate of potash

B. Potassium nitrate

C. Sulphate of potash

D. None of these