IW/CPE ratio as an irrigation scheduling technique was suggested by -

Correct option is B

· IW/CPE Ratio:
· The IW/CPE ratio is an irrigation scheduling technique where "IW" stands for the depth of irrigation water applied, and "CPE" represents the cumulative pan evaporation.
· This ratio helps in deciding the frequency of irrigation based on evapotranspiration demand.
· Suggested by:
· This concept was introduced by Parihar and Co-workers, who emphasized its practicality in ensuring efficient water management, especially in arid and semi-arid regions.