Allied & ICAR Exam Bank • ALLIED_1084 MCQ • 1 Mark

Section 2: Farm Machinery

Farm Machinery

Subtopic: Subsoilers and Chisel Ploughs

Question Statement:

The primary operational purpose of a heavy-duty agricultural subsoiler is to:

Options:

  • (A) Shatter hardpans and plough pans below normal tillage depth without inverting the topsoil
  • (B) Invert the topsoil completely for weed eradication
  • (C) Create a fine pulverized seedbed in a single pass
  • (D) Incorporate standing green manure into the top 10 cm

Answer Key:

A

Step-by-Step Solution & Explanation

Subsoilers operate at depths of $45\text{ to }75\text{ cm}$ to fracture compacted impermeable plough pans, enhancing root penetration and deep drainage without bringing sterile subsoil to the surface.
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