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Napier Grass Farm

160 acres of Super Napier and CO‑5 hybrid fodder — planted once, cut eight times a year, and processed into feed, fuel and fertiliser.

160Acres under Napier
280 t/haGreen fodder per year
8Cuts per year
4 yrsStand life per planting
Overview

A perennial that pays for four years

Napier grass (Cenchrus purpureus, formerly Pennisetum purpureum) is a tall perennial C₄ grass that we plant once and harvest for three to four years. It is the highest biomass producer we can grow here — 250 to 300 tonnes of green fodder per hectare per year across eight cuts, against roughly 100 tonnes for a seasonal fodder crop.

It also does structural work on the farm. The deep, fibrous root mat holds our sloping blocks through the monsoon, the perennial cover keeps soil temperature down, and the crop absorbs the dairy slurry and corn-residue compost that would otherwise need disposal.

  • Varieties grown: Super Napier (Pakchong‑1), CO‑5, CO‑6 and a Red Napier block
  • Spacing: 60 × 60 cm on ridges, about 27,000 setts per hectare
  • Propagation: vegetative, from three-node stem cuttings and root slips
  • First cut: 70–75 days after planting, then every 40–45 days
Freshly cut Napier grass tied into a sheaf at the field edge
280 tGreen fodder / ha / year
Production

Planting once, harvesting for years

Establishment takes a season. After that the work is cutting, feeding and weeding on a 45-day rhythm.

Land preparation

Two ploughings and one harrowing, then ridges at 60 cm. Because the stand will sit for four years, we correct the block properly at this stage — 25 tonnes per hectare of farmyard manure and compost incorporated, and a full soil test to fix pH and phosphorus before anything is planted.

Weeks −3 to −1

Planting material & propagation

Napier hybrids set little viable seed, so the crop is propagated vegetatively. We use three-node stem cuttings taken from 90–120 day old canes, or root slips from established clumps — roughly 27,000 setts per hectare, planted at a 45° angle with two nodes below the soil.

Week 0

Planting season & establishment

Best planted with the onset of the monsoon in June–July, or in February under assured irrigation. Gap filling is done in the third week. The block needs to stay weed-free for the first 45 days — after canopy closure Napier suppresses weeds on its own.

Weeks 0 to 6

Nutrient management

A basal dose of 50:50:40 NPK kg/ha at planting, then 40 kg of nitrogen per hectare after every single cut — nitrogen is what drives regrowth and crude protein. Dairy slurry and vermicompost from our own residue line cover a large part of that requirement.

After every cut

Irrigation

Weekly irrigation in summer, fortnightly in winter, and only supplemental water during the monsoon. Drip laterals run along the ridge. Napier tolerates dry spells but crude protein falls sharply if the crop is stressed through a regrowth cycle.

Continuous

Cutting management

First cut at 70–75 days, then every 40–45 days — eight cuts a year. Cut 10–15 cm above ground so the crown and buds survive; cutting too low kills tillers, cutting too late pushes fibre up and protein down. Height at cutting is around 1.5–2 m.

Every 40–45 days

Chopping & feeding

Cut fodder goes straight to the chaff cutter and is chopped to 15–25 mm. Chopping cuts refusal, improves rumen efficiency and is essential if the material is going into silage. Fresh fodder is dispatched the same day.

Same day

Ratoon care & replanting

After each cut the stubble is raked, gaps are filled, and the block is fertigated within 48 hours. Yield holds well for three years and starts declining in the fourth — at which point the block is ploughed out, rested under a legume, and replanted.

Year 4
Calendar

Typical yield across the cutting cycle

CutDays after previousSeasonGreen yield (t/ha)Crude proteinRouted to
Cut 170–75 (from planting)September329.8%Green fodder
Cut 245October – November3810.4%Green fodder + silage
Cut 345December3410.1%Silage
Cut 445January – February289.2%Silage + hay
Cut 542March309.6%Green fodder
Cut 642April – May3610.2%Green fodder + TMR
Cut 740June – July4211.1%Green fodder
Cut 840August4010.8%Silage + biomass
Holstein cow feeding on chopped Napier grass at the trough
Nutrition

What the analysis looks like

Values below are from our in-house lab, averaged across the 2025–26 cuts and reported on a dry-matter basis. Cutting age is the single biggest lever: harvest at 45 days and protein holds near 10%, let it run to 70 days and it drops under 7% while fibre climbs.

ParameterNapier (45-day cut)Napier silage
Dry matter18–22%28–32%
Crude protein9–11%8–9%
Crude fibre30–34%32–35%
Total digestible nutrients55–60%54–58%
Oxalate2–3%< 2%
pH after fermentation3.8–4.2
Primary products

What we sell off the Napier blocks

Standing Napier grass ready for cutting Product

Chopped green fodder

Cut at 45 days, chopped to 15–25 mm and dispatched the same day. Sold by the tonne on a standing or delivered basis.

DairyGoateryGaushala
Wrapped silage bales Product

Napier silage

Wilted to 30% dry matter, inoculated with lactic acid bacteria and vacuum-baled in 50 kg units. Stable for 12 months unopened.

Lean season feedTransportable
Napier stem cuttings Product

Planting slips & setts

Three-node cuttings and root slips of Super Napier, CO‑5 and CO‑6, cut to order from 90–120 day canes and dispatched within 24 hours.

New plantingsFPO supply
Total mixed ration Product

Total mixed ration (TMR)

Napier silage blended with maize silage, corn gluten feed and mineral mix to a balanced ration, supplied as loose feed or compressed blocks.

Dairy herdsFeedlots
By-products

Nine more streams from the residue

Stubble, over-mature canes, leaf trash and the surplus of a heavy monsoon cut all have a route off the farm.

Napier hay By-product 01

Napier hay

Surplus from the cool-season cuts sun-dried to 12–14% moisture and baled. Lower protein than fresh fodder but it stores through the dry months without a silo.

Dry fodderTransport feed
Feed pellets By-product 02

Fodder pellets & blocks

Dried, hammer-milled Napier bound with molasses and urea into densified pellets or blocks — roughly a fifth of the volume of loose fodder to move.

Compact feedLong haul
Biogas digester By-product 03

Biogas feedstock

Over-mature canes and chopping-floor trash go into the anaerobic digester — roughly 60–70 m³ of biogas per tonne of fresh matter, running the farm's dryer and kitchen.

BiogasDigestate
Sifted vermicompost By-product 04

Vermicompost

Leaf trash and digestate composted with Eisenia fetida over 60 days. Around 1.6% N, 0.9% P and 1.4% K — most of it goes straight back onto the maize blocks.

Own useRetail bags
Napier biomass By-product 05

Biomass briquettes

Dried stalk fibre compressed into briquettes at about 4,000 kcal/kg — a drop-in replacement for coal in small boilers and brick kilns.

Boiler fuelKilns
Napier fibre By-product 06

Pulp & fibre board

The long bast fibre in mature canes pulps well. We supply baled cane to a regional mill making handmade paper and low-density particle board.

Paper pulpBio-board
Bioethanol plant By-product 07

Cellulosic ethanol feedstock

High-lignocellulose mature Napier supplied as second-generation ethanol feedstock — a research-scale offtake, but a growing one.

2G ethanolResearch supply
Napier used as a border planting By-product 08

Bio-fencing & erosion control

Rooted clumps sold as living border plantings — a dense wind barrier that holds bunds and channel banks against monsoon runoff.

BundsWind breakCanal banks
Napier as a trap crop border By-product 09

Trap crop for push–pull

Napier borders around the maize blocks pull stem borer and fall armyworm moths away from the crop. It cuts our spray rounds and the borders still get cut for fodder.

IPM bordersDual purpose

Need green fodder, silage or planting slips?

Tell us the herd size or the acreage you are planting and we will work out quantities and a cutting schedule that fits.

Send an enquiry See the wet milling project →