Field application methods in surface irrigation — identify the incorrect statement among free flooding, check irrigation, and furrow irrigation descriptions.

Introduction / Context:
Surface irrigation methods differ in application pattern, leveling requirements, and suitability for crops. Examinations often test recognition of correct definitions. This question asks for the incorrect statement among the standard descriptions of free flooding, check, and furrow methods.

Given Data / Assumptions:

• Three given statements define free flooding, check irrigation, and furrow irrigation.
• We identify whether any of the three is incorrect.
• Only one final choice should be marked.

Concept / Approach:

Free flooding allows water to spread across the plot with minimal control structures; check irrigation divides the field into small leveled compartments; furrows carry water between crop rows. All three statements as presented are standard and accurate definitions, so the correct response is that none is incorrect.

Step-by-Step Solution:

Verification / Alternative check (if short method exists):

Check agricultural irrigation manuals; the phrasing aligns with accepted definitions.

Why Other Options Are Wrong:

Options A–C are accurate statements; E is not part of the original set and, as written, is not strictly true because free flooding typically tolerates less precise leveling than check irrigation.

Common Pitfalls (misconceptions, mistakes):

Assuming free flooding needs precision leveling (it generally does not compared to checks); mixing up “check” with “furrow”.

Final Answer:

None of these