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SNR (Soil Nutrient Requirement) in STCR equation refers to:
Question

SNR (Soil Nutrient Requirement) in STCR equation refers to:

A.

Quantity of nutrient needed to produce one quintal yield

B.

Total fertilizer to be applied

C.

Soil organic matter requirement

D.

Residual nutrient balance

Correct option is A


· In STCR (Soil Test Crop Response), SNR = Soil Nutrient Requirement, also called NR.
· Defined as: “Amount of nutrient required to produce 1 unit (q/ha) of yield.”
Why other options are wrong
· (b) Total fertilizer is computed later, not SNR.
· (c) Not related to organic matter.
· (d) Residual effects handled separately, not SNR.

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