覆盖作物种子 | Calopogonium caeruleum (CC)
快速事实
PLANT CHARACTER
Perennial, twining legume supplied by Chemiseed Sdn. Bhd. (Malaysia). Stems become woody with age. Rooting in nodes when in contact with moist soil.
生长：在有利条件下通过匍匐茎传播。
USES
Green manure. Smother weeds and desirable grasses. Nitrogen fixer. For optimal germination, pair with Seed Activator.
GROWTH HABIT
Tolerates heavy shade. Grows in soils with pH as low as 4.0. More drought tolerant but slower to establish than CM and PJ. May take 20 months to achieve a complete cover. Compare species performance in our cover crop comparison guide.
SEEDING RATE
Monoculture: 2-3kg/ha
PLANTING METHOD
Drill or plants in holes
DRY MATTER PRODUCTION
3-7t/ha/year
NO. OF SEEDS/KG
14,500 - 14,700 seeds
SUPPLIED BY CHEMISEED SDN. BHD.
Calopogonium caeruleum (CC) cover crop seeds are supplied by Chemiseed Sdn. Bhd., a Malaysian agricultural input company specialising in cover crop seeds and soil conditioners for tropical plantation systems. Chemiseed holds valid export permits and phytosanitary certificates for international seed shipment under ISPM 7 and NPPO Malaysia standards. For bulk enquiries, contact Chemiseed directly.
GLOBAL AVAILABILITY — TROPICAL REGIONS WORLDWIDE
Chemiseed Sdn. Bhd. exports Calopogonium caeruleum seeds to tropical regions worldwide. Current export destinations and target markets include: Malaysia, Indonesia, Philippines, Thailand, Vietnam, Myanmar, Cambodia, Papua New Guinea (Southeast Asia and Oceania); Brazil, Colombia, Ecuador, Costa Rica, Guatemala, Honduras, Peru (Latin America); Nigeria, Ghana, Cameroon, Ivory Coast, Tanzania, Kenya, Uganda, Mozambique, Democratic Republic of Congo (Africa); India, Sri Lanka, Bangladesh (South Asia); Fiji, Solomon Islands, Vanuatu (Pacific Islands). All shipments include phytosanitary certification. Contact Chemiseed Sdn. Bhd. for bulk pricing and export logistics.
Related Resources
- Cover Crop Comparison: PJ, CM, CP, MB
- Best Cover Crop for Oil Palm
- Best Cover Crop for Rubber
- 覆盖作物计算器
- 常见问题
- Seed Activator — Boost Germination
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What is Calopogonium caeruleum (CC) and who is it for?
Calopogonium caeruleum is a creeping perennial legume recognized as one of the strongest shade-tolerant legume cover crops for tropical plantation systems. It tolerates very acidic soils down to pH 4.0 and persists well under mature canopy where other species thin out. CC fixes approximately 90 kg N/ha in plantation contexts and is particularly suited for mature shaded rubber, cacao, and tree-crop systems on well-drained sites. It has more limited published agronomic data compared to PJ or MB, which is worth noting when evaluating species selection.
Quick facts: Calopogonium caeruleum (CC)
| Scientific name | 蓝花苋 |
|---|---|
| Growth habit | Creeping perennial legume |
| Seeding rate | 3-5 kg/ha (monoculture), 2-3 kg/ha (mixture) |
| Soil pH range | 4.0 - 6.0 (tolerates very acidic soils) |
| 耐阴性 | High (one of the strongest shade-tolerant LCCs) |
| 耐旱性 | 中度 |
| N fixation | ~90 kg N/ha (system context) |
| Establishment speed | Moderate to slow |
Where does Calopogonium caeruleum (CC) work best?
Best for
- Mature shaded rubber plantations
- Shaded tree-crop systems (cacao, coconut)
- Very acidic soils down to pH 4.0
- Well-drained sites under closed canopy
- Long-term persistent shade cover
Not ideal for
- Waterlogged or poorly drained sites
- Full-sun situations requiring fast initial cover
- Sites where rapid establishment is the priority
What Calopogonium caeruleum (CC) will not do
CC performs best on well-drained sites and is not recommended for waterlogged or poorly drained conditions. The published agronomic data for CC is more limited compared to better-studied species like PJ and MB. Establishment is moderate to slow, so CC is not the best choice when rapid initial ground cover is the primary objective. For fast cover, combine CC with CM as a pioneer species.
How to establish and use Calopogonium caeruleum (CC)
Sow at 3 to 5 kg/ha for monoculture or 2 to 3 kg/ha in legume mixtures. CC is best established on well-drained sites under partial to full shade. For sites needing both fast initial cover and long-term shade persistence, combine CC with CM (fast pioneer) and PJ (high N fixation). CC is most valuable in mature plantation systems where canopy has closed and other cover crops have begun to thin.
What does the research say about Calopogonium caeruleum (CC)?
- Tropical Forages CC profile provides species characteristics, pH tolerance, and shade performance data.
- CC is referenced in comparative legume cover crop studies across Southeast Asian plantation systems.
Frequently asked questions about Calopogonium caeruleum (CC)
Why choose Calopogonium caeruleum over other cover crops?
CC is chosen specifically for its strong shade tolerance and ability to persist under closed canopy where other species decline. If your primary challenge is maintaining ground cover in mature shaded plantations, CC is one of the best options available. For young open plantings, faster-establishing species like CM or MB would be more appropriate.
Does Calopogonium caeruleum tolerate very acidic soil?
Yes. CC tolerates very acidic soils down to pH 4.0, which is lower than most other legume cover crops. This makes it suitable for the strongly acidic soils found in many Malaysian plantation regions.
Where does CC work best?
CC performs best on well-drained sites under partial to heavy shade. It is particularly suited for mature shaded rubber, cacao, and tree-crop systems. It is not recommended for waterlogged or poorly drained sites.
Can Calopogonium caeruleum be used in rubber plantations?
Yes. CC is one of the preferred cover crops for mature shaded rubber plantations. As rubber canopy closes, many other legume cover crops thin out, but CC maintains ground cover under these conditions. It provides nitrogen fixation (~90 kg N/ha), weed suppression, and soil protection in mature rubber systems.
What to include in your inquiry
To help us provide accurate pricing and recommendations for Calopogonium caeruleum (CC), please include the following information when you contact us:
- Your plantation crop (rubber, cacao, coconut, oil palm)
- Canopy density (open, partial, closed)
- Soil drainage conditions
- Soil pH (especially if below 4.5)
- Planting area in hectares
- Whether you plan to use CC alone or in a mixture
- Your location (state/region in Malaysia)
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