A. Nitrogen

B. Phosphorus

C. Potassium

D. Iron

A. Nitrogen

B. Phosphorus

C. Sulfur

D. Iron 

A. Zn & Mg

B. Fe & Mg

C. Mn & Fe

D. none of these

A. Nitrogen

B. Phosphorus

C. Potassium

D. Calcium

A. N & Mg

B. Fe & Mg

C. Mn & Fe

D. N & Mn

A. NH₄⁺

B. K⁺

C. Ca⁺²

D. NO₃^–

A. Muscovite

B. Biotite

C. Feldspar

D. Chlorite

A. AB-DTPA method

B. Olsen method

C. Bray-1 method

D. Mehlic method

A. Foliar application

B. Broadcast application

C. Subsurface application

D. Band application

A.  50 %                                 

B. 40 %

C. 60 %

D. 45 %