Question
…………………..measures the proportion of cation
exchange sites occupied by sodium.Solution
The exchangeable sodium percentage (ESP) measures the proportion of cation exchange sites occupied by sodium. Soils are considered sodic when the ESP is greater than 6, and highly sodic when the ESP is greater than 15.
A reaper is used for
The plant growth regulator increases the flower size of geranium and accelerates flowering in cyclamen:
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