The question asks to identify the true statements about Zero Tillage, a method of conservation tillage.

Zero Tillage Statement Analysis

• Statement A: Zero tillage is an extreme form of minimum tillage. This is true. Zero tillage represents the furthest extent of minimum tillage, involving no soil disturbance before planting.
• Statement B: In Zero tillage, herbicide functions are extended. This is true. Since soil disturbance is avoided, herbicides are crucial for weed control, either before planting or alongside planting, thus extending their role in crop establishment.
• Statement C: It is an energy consuming operation. This is false. Conservation tillage methods like zero tillage are designed to *reduce* fuel and energy consumption by minimizing tractor passes and soil manipulation compared to conventional tillage.
• Statement D: It promotes the rapid decomposition of soil organic matter. This is false. Zero tillage conserves soil organic matter by leaving crop residues on the surface and reducing aeration, which slows decomposition rather than speeding it up.
• Statement E: In Zero tillage, primary tillage is completely avoided and secondary tillage is restricted to root zone only. This is true. Primary tillage (plowing, disking) is entirely eliminated. Any minimal soil disturbance is typically confined to the narrow band where seeds are planted, essentially the root zone.

Conclusion on Zero Tillage Statements

Based on the analysis, statements A, B, and E are true.

Therefore, the correct option is the one that includes A, B, and E only.