Most efficient method of fertility evaluation is

A. Field trial

B. A. niger method

C. Pot culture

D. Soil plaque technique

Answer: Option A

Solution(By Examveda Team)

The most efficient method of fertility evaluation is field trial. Soil testing is the most accurate and convenient method for evaluating a soil’s fertility.
For soil survey work, samples are collected from a soil profile representative of the soil of the surrounding area. And field trials are real-life experiments that test directly whether proposed interventions work.