Cover Crops in Laos | Chemiseed Supply for Plantations

Chemiseed supplies leguminous cover crop seeds and SoilBoost EA soil conditioner to Lao plantation operators, rubber concessions, and coffee estates. Cover crops fix nitrogen, hold soil on slopes during the immature phase of tree crops, suppress weeds, conserve moisture, and build organic matter.

At a glance: Laos context

  • Rubber: Lao rubber expansion has been driven by concession blocks in central and southern provinces, with notable plantings in Bolikhamsai, Khammouane, Savannakhet, and Champasak.
  • Coffee: The Bolaven Plateau in southern Laos (Champasak, Sekong, Salavan) is the country's main coffee region, dominated by Arabica and Robusta.
  • Banana and other plantation crops: Cavendish banana and other plantation crops are grown in lowland river valleys, where ground cover during establishment supports soil structure.
  • Common challenges: seasonal monsoon, sloping terrain, and the need for fast early cover on cleared concession blocks.

Cover crop species relevant to Laos

Pueraria javanica (PJ): vigorous core legume

PJ (tropical kudzu) is the standard core legume in Southeast Asian rubber and is well suited to Lao monsoon climates. Seeding rate: 4 to 6 kg/ha. The most defensible published nitrogen figure for this species comes from a single rubber-intercrop trial in northeast Thailand, where the cover accumulated about 250 kg N per hectare per year in aboveground biomass, with 85 to 93% of that nitrogen drawn from the atmosphere (Clermont-Dauphin et al. 2016, Agriculture, Ecosystems & Environment 217:79-88). Treat that as a measured upper reference point from one trial on one site, not as a design value to plan a fertiliser programme against. The same trial also found that the legume cover reduced the drought resilience of the young rubber trees on water-limited ground, which matters through the Lao dry season on shallower soils.

Centrosema pubescens (CP): shade tolerant for canopy closure

CP is one of the shade-persistent successors and carries the cover forward as the rubber canopy closes. Seeding rate: 3 to 4.5 kg/ha. It is often combined with pioneer species in a mixed cover strategy. Where a mixture is used, the best-cited reference is MPOB TT No. 501 (Information Series 588, June 2012), Table 1 treatment C2 - PJ 4 : CP 3 : CC 1, total 8 kg/ha, with 5 g of Rhizobium (RRI strain) inoculant per kg of seed. That is an institutional best-management-practice recommendation drawn from a peat trial, not a primary field measurement.

Calopogonium mucunoides (CM): fast pioneer

CM establishes quickly and gives rapid early ground cover. Seeding rate: 4 to 6 kg/ha as a mono stand.

Mucuna bracteata (MB): nursery-raised, long-lived cover

MB produces dense, persistent ground cover suitable for rubber and tree-crop blocks. It is nursery-raised and transplanted at about 320 seedlings per hectare (roughly 85 to 100 g of seed per hectare). It is not broadcast like the other species. MB is the shade-tolerant species in this group, which is why it is used under a maturing canopy, while PJ thins as the canopy closes. Isotope work puts MB at 67 to 84% of its nitrogen drawn from the atmosphere (Cheah, Zaharah & Aminuddin 2010, Oil Palm Bulletin 60). We do not publish an absolute kg N/ha figure for MB, because no traceable measurement supports one.

SoilBoost EA on Lao plantation soils

SoilBoost EA is a Leonardite-derived humic acid soil conditioner manufactured exclusively for Chemiseed Sdn. Bhd. (Malaysia) and Kudzu Seeds Trading. It has pH 3.84 and 0.45% sulfur as sent (25.81% sample moisture), equivalent to 0.61% on a dry-weight basis. Typical analysis. A certificate of analysis for the batch supplied is available on request. On the acidic mineral soils and basalt-derived Bolaven coffee soils common in Laos, a humic acid conditioner supports soil condition and structure. SoilBoost EA is applied by broadcast at 50 to 100 kg/ha or by drench at 10 to 15 kg/ha. It is a soil conditioner: it is not a fertiliser substitute and not a disease treatment.

Request availability and quote for Laos

Chemiseed serves Lao concessions, cooperatives, and importers on a quote-only basis. Availability and lead time are confirmed per inquiry based on species, volume, and shipment terms.

Request availability and quote for Laos

Or message us directly: WhatsApp +60 17-237 4058. See also how can we help for the right intake form.

Trust and seed quality

Chemiseed cover crop seed lots are tested to ISTA and AOSA methods for germination and purity. Chemiseed exports from Malaysia, so where the destination requires one, consignments travel with a phytosanitary certificate issued by Malaysia's national plant protection organisation, the Department of Agriculture Malaysia (Jabatan Pertanian Malaysia), under the IPPC framework. That certificate is the document described by ISPM 12; ISPM 7 governs an NPPO's export certification system and is not a certification a seed company can hold. Import permits and import admissibility remain the buyer's responsibility. Spec sheets and certificates of analysis are available on request via the document center.

For Philippine inquiries, see our sister company KudzuSeeds, which is BPI-permitted in the Philippines.

Frequently asked questions

Which cover crops are used in Lao rubber concessions?

Pueraria javanica is the core legume for Lao rubber, broadcast at 4 to 6 kg/ha. Centrosema pubescens is added as a shade-persistent successor as the canopy closes. Calopogonium mucunoides is used as a pioneer at establishment.

What cover crops are relevant to Bolaven Plateau coffee?

Shade-persistent legumes such as Centrosema pubescens and Calopogonium caeruleum are used in coffee inter-rows where light at ground level is moderate. Species fit depends on the canopy management plan.

What does SoilBoost EA do?

SoilBoost EA is a humic acid soil conditioner that supports soil condition and structure. It is applied at 50 to 100 kg/ha by broadcast or 10 to 15 kg/ha by drench. It is not a fertiliser substitute.

How do I get availability and pricing for Laos?

Chemiseed operates on a quote-only basis. Request availability through the form above or WhatsApp, and we will confirm species availability, lead time, and pricing for your shipment.

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