Mechanical components and operational mechanism
The straw reaper combines harvesting, chopping, threshing, and pneumatic transport in one pass.
Core mechanical components:
- Front cutter bar: 7-foot reciprocating cutter bar with serrated steel blades that cuts standing straw 3 to 5 cm above ground level.
- Reel and feed auger: Rotating steel reel sweeps cut straw into a heavy-duty cross auger that feeds it evenly into the threshing drum.
- Heavy-duty threshing cylinder: High-speed rotor fitted with 28 to 36 serrated beaters that shred coarse straw stalks against concave screens into soft, uniform bhusa.
- Grain recovery sieve: Oscillating lower cleaning sieve that filters out unthreshed grain kernels, depositing clean grain into a side collection tray.
- Pneumatic blower fan: High-velocity blower fan that propels chopped bhusa through an elevated discharge duct directly into a trailing trolley.
Economic returns, fodder value and stubble management
Operating a straw reaper creates substantial economic and ecological value:
Measurable farm benefits:
- High-value fodder production: Produces approximately 1.5 to 2.5 tonnes of premium fine wheat bhusa per acre, providing vital dry fodder for dairy cattle.
- Grain recovery: Recovers 50 to 100 kg of leftover grain per acre that was missed or thrown over by the combine harvester.
- Commercial custom hiring revenue: Custom operators earn substantial hiring fees clearing harvested fields for fellow farmers.
- Elimination of stubble burning: Completely cleans fields of crop residue, enabling immediate secondary tillage without setting fire to parali.
Tractor HP requirements and CRM scheme subsidies
Operating a straw reaper requires a tractor of at least 45 HP to 55+ HP with a heavy-duty PTO drive shaft and dual clutch. Capital subsidies between 40% and 50% for individuals, and up to 80% for Custom Hiring Centers and FPOs, are available under the Crop Residue Management (CRM) and SMAM schemes on agrimachinery.nic.in.
Official source
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Sub-Mission on Agricultural Mechanization (SMAM - CRM) ↗Related on KisanPe
Common questions
What is the primary function of a bhusa machine (straw reaper)?
It collects leftover stubble from combine-harvested fields, chops it into fine cattle fodder (bhusa), and blows it into an attached trolley.
How does a straw reaper help prevent stubble burning?
It completely clears standing stubble from the field to produce valuable cattle fodder, leaving fields clean for immediate subsequent sowing.
What tractor horsepower is needed to operate a straw reaper?
A tractor of at least 45 HP to 55+ HP fitted with a dual clutch and 540 RPM PTO is required.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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