Soil Science MCQ Question and Answer | Agriculture MCQ Question

A. Hornblend

B. Tremolite

C. Diopsite

D. Actinolite

A. Exposed crystal edges

B. Isomorphus substitution

C. Anion exchange

D. All of these

A. N

B. S

C. Mg

D. Zn

A. Fe

B. P

C. S

D. None of these

A. B

B. Mg

C. Ca

D. Mo

A. 25%

B. 80%

C. 75%

D. 133.5%

A. $${\text{SAR}} = \frac{{{\text{N}}{{\text{a}}^ + }}}{{\sqrt {{\text{C}}{{\text{a}}^{2 + }} + {\text{M}}{{\text{g}}^{2 + }}} }}$$

B. $${\text{SAR}} = \frac{{{\text{N}}{{\text{a}}^ + }}}{{\sqrt {\frac{{{\text{C}}{{\text{a}}^{2 + }} + {\text{M}}{{\text{g}}^{2 + }}}}{2}} }}$$

C. $${\text{SAR}} = \frac{{{\text{C}}{{\text{a}}^{2 + }} + {\text{M}}{{\text{g}}^{2 + }}}}{{\sqrt {{\text{N}}{{\text{a}}^ + }} }}$$

D. $${\text{SAR}} = \frac{{{\text{N}}{{\text{a}}^ + }}}{{\sqrt {\frac{{{\text{C}}{{\text{a}}^{2 + }} + {\text{K}}}}{2}} }}$$

A. 5 kg

B. 25 kg

C. 10 kg

D. 100 kg

A. Less rupture of Si-O-Al bonds

B. Less K reserve

C. Both A and B

D. None of the above

A. Agronomists

B. Edaphologists

C. Mycologist

D. Soil chemists