High production
Tall tillers and strong regrowth support intensive forage harvest.
Siambaza
Megathyrsus maximus cv. MombasaA tall, productive tropical forage grass for intensive grazing, cut-and-carry, hay and silage on fertile, well-drained soils.
Technical variety profile
Current manufacturer guidance positions Siambaza at 25–35 t DM/ha/year, while Tropical Seeds files contain lower ranges from other conditions.
Dry matter25–35 t/ha/yearCurrent manufacturer guide
Crude protein12–16%Published range
Seeding rate8–12 kg/haSource range
Planting depth1–1.5 cm
First use120–150 days
Rainfall≈1,000 mm+
Best fit
Where Siambaza belongs
Intensive tropical forage systemsCattle and horse pastureCut-and-carry, hay and silageFertile, well-drained fields
#pasture#forage#hay#silage
Why it performs
Three reasons to shortlist it
Multiple formats
Suitable for pasture, cut forage, hay and silage.
Broad elevation
Published guidance spans approximately 0–1,800 m.
Technical data
Comparable specifications
Dry matter25–35 t/ha/yearCurrent manufacturer guide
Crude protein12–16%Published range
Seeding rate8–12 kg/haSource range
Planting depth1–1.5 cmTechnical reference
First use120–150 daysTechnical reference
Rainfall≈1,000 mm+Technical reference
Growth habitErect tussock grassTechnical reference
Soil fertilityMedium–highTechnical reference
Soil drainageWell-drainedTechnical reference
Soil pH5–8Technical reference
Use height≈1.10 mTechnical reference
Minimum residual10 cmTechnical reference
Primary product documents
Download the technical sheet
Choose the language for a concise guide to key benefits, establishment, management, specifications and limitations.
View guides and supporting researchEstablishment
Build the stand correctly
- 01Prepare a fine, firm seedbed and plant shallowly at 1–1.5 cm.
- 02Use the approved local rate within the published 8–12 kg/ha range.
- 03Delay first grazing or cutting until a strong root and tiller base develops.
Management
Turn potential into performance
- Enter near 1.10 m and leave at least 10 cm residual, then adapt to local growth conditions.
- Maintain fertility to support high biomass removal.
- Choose the harvest interval according to quality target and season.
Limitations & safety
Know where it does not fit
- Not a low-input option on infertile sites.
- Published yield, protein and establishment ranges vary with seed technology, geography and management.
- Use the current market specification and seed-lot label when setting rates and planting depth.
Technical resourcesPeer-reviewed article · 2020 Technical guide · Current edition View the complete Research Library
Guides and supporting research
Herbage yield and quality of Megathyrsus cultivars in Northeast Thailand
Ubon Forage Seeds · Tropical Grasslands-Forrajes Tropicales
Download PDFMegathyrsus maximus
CSIRO · ILRI · Alliance of Bioversity International and CIAT
Open publicationField fit matters
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