Question

The seed rate of wheat under normal agronomical practices is

• A. 50 kg/ha
• B. 75 kg/ha
• C. 100 kg/ha
• D. 125 kg/ha

Hint:

The standard seed rate for timely-sown wheat is 100 kg/ha. This is increased to 125 kg/ha for late-sown or broadcast wheat to compensate for reduced tillering.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
The seed rate is the quantity of seed required to sow a unit area of land to achieve an optimum plant population.
Using the correct seed rate ensures that plants are spaced properly, reducing competition for sunlight, water, and nutrients while maximizing yield.
For wheat, the standard seed rate is determined by the sowing method, grain size, and sowing time.

Step 2: Detailed Explanation:
For timely-sown wheat using standard drilling or dibbling methods under normal agricultural conditions, the recommended seed rate is 100 kg/ha.
This rate provides approximately 2.5 million plants per hectare, which is the optimum density for maximum grain yield.
If sowing is delayed (late-sown wheat) or performed under saline/alkaline soil conditions, the seed rate is increased to 125 kg/ha to compensate for lower germination rates and reduced tillering.
Seed rates of 50 kg/ha or 75 kg/ha are too low for standard wheat cultivation, resulting in an inadequate plant population.
Therefore, 100 kg/ha is the standard seed rate under normal agronomic practices.

Step 3: Final Answer
The standard seed rate of wheat under normal agronomic practices is 100 kg/ha.