Maharashtra HSC Crop Science (Bifocal B4) study materials
Maharashtra HSC Crop Science (Bifocal B4) study resources

Maharashtra HSC Crop Science (Bifocal B4): Farm Machinery, Tools and Implements

Maharashtra HSC Crop Science (Bifocal B4) · Work through your exam, one topic at a time.

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Farm Machinery, Tools and Implements

What the domain tests

Farm Machinery, Tools and Implements tests identification, selection, use, calibration, maintenance and safety of hand tools, implements and machines used in crop production.

Core rules

  • Hand tools: khurpi, spade, sickle, hoe, rake and pruning shear. Implements: mouldboard plough, disc plough, harrow, cultivator, seed drill, planter, sprayer, thresher and winnower.
  • Primary tillage opens the soil; secondary tillage breaks clods and levels the field. A seed drill places seed and fertilizer at proper depth and spacing.
  • Calibration matches machine output to the recommended dose. For sprayers, check nozzle discharge, walking speed and spray width.
  • Maintenance: clean, lubricate, tighten and replace worn parts; store implements safely.
  • Safety: use guards, protective clothing and correct hitching; never clean a running machine.

Worked example

A sprayer has a 1 m effective swath and is walked at 3 km/h. Area covered in 1 hour = speed x width x time = 3,000 m/h x 1 m = 3,000 m2 = 0.3 ha. Reasoning: convert 3 km/h to 3,000 m/h, multiply by width and time. If the recommended spray volume is 500 L/ha, the sprayer must deliver 150 L over that 0.3 ha.

Traps

Do not confuse a tool with an implement: a khurpi is a hand tool; a plough is an implement. Do not spray without calibration - overdose wastes money and harms crops. Do not remove safety guards. Do not store batteries or fuel carelessly.