List-I (Theory proposed) & List-II (Author)
(A) Father of fertilizer Chemistry & (I) Jackson
(B) Nutrient index & (II) Stanley A Barber
(C) Root interception & (III) Liebig
(D) Weathering index & (IV) Parker
Show Hint
Remember the core contributions: Liebig is the Father of Agricultural/Fertilizer Chemistry, and Barber is famous for the Root Interception theory of nutrient uptake. Matching these two immediately points to the correct option.