What is Centrosema pubescens (CP) and who is it for?
Centrosema pubescens is a twining perennial legume valued for its ability to persist under partial to heavy shade, making it one of the more reliable cover crops for mature plantation systems. No verified species-specific nitrogen figure is published for CP. CP maintains ground cover in conditions where many other species decline. It is widely used in cacao, mature oil palm, rubber, and coconut systems. CP establishes at moderate speed and is most commonly deployed in mixtures with PJ and CM rather than as a sole cover.
Quick facts: Centrosema pubescens (CP)
| Scientific name | Centrosema pubescens |
|---|---|
| Growth habit | Twining perennial legume |
| Seeding rate (published) | 3 to 5 kg/ha broadcast (Tropical Forages, CIAT and ILRI 2020); 3 kg/ha in the MPOB mixture PJ 4 + CP 3 + CC 1 (MPOB TT No. 501) |
| Soil | Acid to neutral, well-drained soils |
| Shade tolerance | High (performs under partial to heavy shade) |
| Drought tolerance | Moderate |
| Annual N fixation rate | No verified species-specific rate |
| Biomass-N stock (kg N/ha) | Not established |
| Time to ground cover | Dense cover from a pure sward in 4 to 8 months (PROSEA 11) |
Where does Centrosema pubescens (CP) work best?
Best for
- Shaded cacao systems
- Mature plantation systems with closed canopy
- Humid, well-drained tropical sites
- Persistent shade cover requirements
- Legume mixtures (commonly with PJ and CM)
Not ideal for
- Very open or sunny sites as sole cover (other species establish faster)
- Very acidic waterlogged soils
- Situations requiring the fastest possible initial ground cover
What Centrosema pubescens (CP) will not do
CP has hard-seed dormancy that requires scarification for reliable germination. It is often most effective in mixtures rather than as a single universal cover crop solution. On fully open sites, faster-establishing species like CM will provide quicker initial cover. CP's primary advantage is shade persistence, which is less relevant in young open plantings.
How to establish and use Centrosema pubescens (CP)
Published reference rates: 3 to 5 kg/ha broadcast (Tropical Forages, CIAT and ILRI 2020); in the MPOB mixture, 3 kg/ha CP with 4 kg/ha PJ and 1 kg/ha CC, plus 5 g Rhizobium per kg of seed (MPOB TT No. 501). The rate for your site is confirmed on the quotation. Seed scarification is recommended to overcome hard-seed dormancy and achieve uniform germination. In mixed plantings, CP is typically combined with CM (for fast initial cover) and PJ, with CP providing the shade-persistent component that maintains cover as the canopy closes. CP performs best on humid, well-drained sites.
What does the research say about Centrosema pubescens (CP)?
- Tropical Forages (CIAT and ILRI 2020) species profile: characteristics, agronomy and a broadcast seeding rate of 3 to 5 kg/ha.
- PROSEA 11 (1997): a pure CP sward gives dense cover in 4 to 8 months.
- MPOB TT No. 501 (2012) includes CP in its mixture of PJ 4 + CP 3 + CC 1 kg/ha.
- No verified species-specific nitrogen figure is published for CP.
Frequently asked questions about Centrosema pubescens (CP)
Does Centrosema pubescens need seed scarification?
Yes. CP has hard-seed dormancy, and scarification (mechanical or chemical) is recommended for reliable and uniform germination. Without scarification, establishment may be patchy and slow.
Where does Centrosema pubescens perform best?
CP performs best on humid, well-drained tropical sites with partial to heavy shade. It is particularly well-suited for mature cacao systems, closed-canopy oil palm, and mature rubber where shade tolerance is essential for maintaining persistent ground cover.
Can Centrosema pubescens survive heavy shade?
Yes. CP is one of the most shade-tolerant legume cover crops available. It maintains ground cover under conditions where many other species, including PJ, begin to thin or decline. This makes it the preferred choice for the shade-persistent component in legume cover crop mixtures.
Why is CP commonly used in legume mixtures rather than alone?
CP establishes at moderate speed, which means it is slower to provide initial ground cover than species like CM. By combining CP with fast-establishing CM and high-N-fixing PJ, plantation managers get rapid early cover, strong nitrogen contribution, and long-term shade persistence from a single planting.
What to include in your inquiry
To prepare your quotation, please include:
- Your plantation crop (cacao, oil palm, rubber, coconut)
- Canopy density (open, partial shade, heavy shade)
- Soil drainage and pH
- Annual rainfall
- Planting area in hectares
- Whether you plan to use CP alone or in a mixture
- Your location (country and region)
Request a quotation, or contact us via WhatsApp: +60 17-237 4058
Sold by quotation only. Price, minimum order and lead time are confirmed on the quotation.
Chemiseed Sdn. Bhd.
Compare with related products
Documents available
Technical Data Sheet (TDS), Certificate of Analysis (COA) with germination data, Safety Data Sheet (SDS) where applicable, and, for export, a phytosanitary certificate issued by the Department of Agriculture Malaysia (DOA) are available on request. Seed lots are germination- and purity-tested to ISTA and AOSA methods.
Limitations and site considerations
Field results depend on crop system, soil, rainfall, planting method, seed quality, storage, timing, and post-establishment management. Adjust recommendations to local conditions, and contact us before ordering if you are unsure about crop fit, application rate, or site suitability.