Drip Irrigation

Flat Drip vs Inline Drip vs Online Drip: Which Drip Irrigation Should You Choose?

By Pragati Agrotech Technical Team, Nashik · Updated 8 October 2026 · 3 min read

Quick answer

Flat drip and inline drip have drippers fixed inside the pipe at a set spacing, so they are best for crops planted in regular rows such as vegetables, onion, cotton and sugarcane. Online drip (plain lateral) has no built-in drippers; you punch a dripper exactly where each plant is, so it is best for orchards and widely spaced plantations like pomegranate, grapes, mango and banana. Choose by your plant spacing first, then by crop duration and budget.

Quick comparison

	Flat Drip	Inline Drip	Online Drip (Plain Lateral)
Dripper position	Flat emitter built into pipe	Dripper fitted inside pipe	Dripper punched on the pipe
Spacing	Fixed: 20 / 30 / 40 cm (more on order)	Fixed: 30 / 40 / 50 cm	Any spacing you need
Sizes	12, 16, 20 mm	12, 16, 20 mm	12, 16, 20 mm
Flow rate	2 LPH, 4 LPH	2 LPH, 4 LPH	Depends on dripper (2 / 4 / 8 LPH)
Best for	Row crops, vegetables, sugarcane	Vegetables, flowers, bed planting	Orchards, wide-spaced plantations
Installation	Fastest: roll out and connect	Fast: roll out and connect	Slower: dripper per plant

What is flat drip irrigation?

Flat drip is a thin-walled lateral with flat emitters moulded inside the pipe at fixed intervals. Because it is light and economical per metre, it is widely used for seasonal and row crops where plants are close together.

Thickness matters: 0.2 mm laterals are the most economical for one season, while 0.3 mm and 0.4 mm laterals are stronger and better for longer-duration crops or repeated use. Pragati Flat Drip and Kisan Gold Flat Drip are both available in ISI and Non-ISI grades.

What is inline drip irrigation?

Inline drip has cylindrical drippers fitted inside the pipe at the factory. It gives uniform water to every plant along the bed and is commonly used for vegetables, floriculture and horticulture crops grown at regular spacing.

What is online drip (plain lateral)?

Online drip uses a plain lateral pipe. Drippers are punched into the pipe exactly where each tree or plant stands, and micro tubes can carry water further if needed. This flexibility makes it the standard choice for orchards and plantations where spacing is wide or uneven.

Because you choose the dripper, you can also give more water to bigger trees (for example 8 LPH) and less to young plants.

How to choose: 4 simple questions

Is your plant spacing regular and close (under about 60 cm)? Choose flat or inline drip.
Are plants widely or unevenly spaced, like fruit trees? Choose online drip.
Is the crop seasonal? A 0.2 mm flat drip keeps cost low. For multi-season use, choose 0.3 or 0.4 mm.
Is your water source silty (well, canal, pond)? Install a screen filter before the drip lines in every case.

Do not forget the accessories

Every drip system needs a filter, mainline or sub line pipe, take-off connectors, joiners, end caps and a flush valve. Using matching accessories prevents leakage and keeps pressure even across the field.

Frequently Asked Questions

Which drip is best for sugarcane?

Sugarcane is planted in regular rows, so flat drip or inline drip is usually preferred. Choose thickness based on how many seasons you want to use the laterals.