Major types of agricultural spray pumps
Spray pumps are categorized by their power source, pressure capacity, and acreage suitability.
Standard sprayer categories:
- Manual knapsack sprayers (16-litre tank): Continuous hand-lever piston pump generating 2-3 bar pressure; ideal for small kitchen gardens and smallholder plots.
- Battery-operated sprayers: Equipped with 12V rechargeable lead-acid or lithium-ion batteries and small diaphragm pumps; delivers constant pressure without manual pumping fatigue.
- Engine-driven power sprayers (2-stroke or 4-stroke): High-pressure piston pumps (generating 15 to 25 bar pressure) designed for spraying tall fruit trees and dense plantations.
- Tractor-mounted boom sprayers: PTO-driven diaphragm pumps fitted with horizontal folding spray booms (8 to 12 metres wide) for large commercial field crops.
Selecting appropriate spray nozzles
The nozzle tip dictates droplet size, spray angle, and drift characteristics.
Nozzle selection guide:
- Hollow cone nozzles: Produce fine droplets with wide coverage, ideal for contact insecticides and fungicides on dense foliage.
- Flat fan nozzles: Produce uniform fan patterns with medium droplets, recommended for soil and foliar herbicide applications.
- Flood-jet / Deflector nozzles: Produce coarse, drift-resistant droplets at low pressure, preferred for non-selective herbicide spraying along field borders.
Maintenance routines and SMAM purchase subsidy
Always flush pumps with clean water after daily spraying to prevent chemical residues from corroding valves or clogging nozzles. Recharge batteries regularly during storage. Small and marginal farmers can avail purchase subsidies on battery and power sprayers under the Sub-Mission on Agricultural Mechanization (SMAM) via agrimachinery.nic.in.
Official source
Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.
Sub-Mission on Agricultural Mechanization (SMAM) ↗Related on KisanPe
Common questions
What is the primary benefit of a battery-operated spray pump?
It maintains continuous uniform spray pressure, eliminates manual pumping fatigue, and allows consistent foliar application.
Which nozzle is best for spraying herbicides?
Flat fan or flood-jet nozzles are recommended for herbicides as they produce uniform, drift-resistant droplet bands.
Are subsidies available for buying agricultural spray pumps?
Yes, capital subsidies for battery-operated and engine-powered sprayers are available under SMAM on agrimachinery.nic.in.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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