SKU: 29993874571

Pueraria javanica (PJ) Cover Crop Seeds

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Description

Pueraria javanica (PJ) Cover Crop SeedsPueraria javanica (PJ), also called tropical kudzu (Pueraria phaseoloides), is a fast growing tropical legume cover crop for rubber, coconut and oil palm. It fixes up to 250 kg N ha year (85 to 93% drawn from the air), forms rapid ground cover, and cut runoff 88% and soil loss 98% versus bare soil in replanted rubber. Chemiseed Sdn. Bhd. supplies PJ seed, tested to ISTA and AOSA methods, for Malaysia, Indonesia and export. PLANT CHARACTER Fast

Pueraria javanica (PJ), also called tropical kudzu (Pueraria phaseoloides), is a fast-growing tropical legume cover crop for rubber, coconut and oil palm. It fixes up to 250 kg N/ha/year (85 to 93% drawn from the air), forms rapid ground cover, and cut runoff 88% and soil loss 98% versus bare soil in replanted rubber. Chemiseed Sdn. Bhd. supplies PJ seed, tested to ISTA and AOSA methods, for Malaysia, Indonesia and export.

PLANT CHARACTER

Fast-growing, trailing to twining annual/short-lived perennial legume. Forms a dense, self-regenerating ground cover under plantation canopies. Deep root system contributes to subsoil moisture access and nutrient cycling.

USES
Nitrogen fixation, erosion control, soil moisture retention, potassium cycling, weed suppression, and cover crop for replanting phases. In immature rubber, field research confirms Pueraria javanica can fix up to 250 kg of nitrogen per hectare per year, with 85-93% of that nitrogen drawn directly from the atmosphere at full ground cover. In replanted rubber, a legume cover including Pueraria reduced runoff by 88% and soil loss by 98% versus bare soil (Perron et al., 2024). For optimal germination results, pair with Seed Activator during planting. See also: PJ vs MB Comparison.

GROWTH HABIT
Vigorous establishment under full sun and moderate shade. Produces 14,347 kg of fresh biomass per hectare at 150 days in Philippine plantation trials. Biomass decomposes at 95.66% within 3 months, releasing 3.572% N, 0.245% P, and 0.809% K directly into the root zone.

COCONUT & MULTI-CROP USE
Established as a basin legume in coconut, Pueraria javanica contributes 28.45 kg of biomass and 196.2 g of nitrogen per basin, and can substitute up to 30% of nitrogen fertiliser requirements (Indian Coconut Journal, 2022).

PLANTING TYPE & SEEDING RATE
Pure stand: 4-6 kg/ha; in a legume mixture: 2-4 kg/ha

PLANTING METHOD
Direct sowing, broadcast or rows

DRY MATTER PRODUCTION
8-12 t/ha/year

NO. OF SEEDS/KG
~55,000 seeds

SUPPLIED BY CHEMISEED SDN. BHD.
Pueraria javanica seeds are supplied by Chemiseed Sdn. Bhd., a Malaysian tropical agriculture company specializing in cover crop seeds, soil conditioners, and plantation inputs. Chemiseed is a trusted supplier of leguminous cover crop seeds across the tropics.

GLOBAL AVAILABILITY: TROPICAL REGIONS WORLDWIDE
Chemiseed Sdn. Bhd. exports Pueraria javanica seeds to plantations, agricultural cooperatives, government agencies, and distributors across Southeast Asia (Malaysia, Indonesia, Thailand, Vietnam, Myanmar, Cambodia, Philippines), Latin America (Brazil, Colombia, Ecuador, Costa Rica, Guatemala, Honduras, Peru), Sub-Saharan Africa (Ghana, Nigeria, Cameroon, Ivory Coast, Tanzania, Kenya, Mozambique, Uganda), South Asia (India, Sri Lanka, Bangladesh), and Oceania (Papua New Guinea, Solomon Islands, Fiji). All seed shipments comply with international phytosanitary certification and trade compliance standards. Contact Chemiseed Sdn. Bhd. for bulk seed supply, distributor partnerships, and international delivery.

Related Resources

Research-backed performance
Peer-reviewed evidence

By the numbers

Data from peer-reviewed trials across Malaysia, Indonesia, and the Philippines (rubber, coconut, and replanting systems).

up to 250
kg N fixed per hectare per year
Upper-range biological nitrogen fixation at full ground cover, immature rubber, Southeast Asia.
Vrignon-Brenas et al. 2019, Sustainable Dev. Review (HAL Science)
85-93%
Nitrogen from the atmosphere
Percentage of Pueraria's own nitrogen derived from atmospheric fixation (immature rubber trials).
Vrignon-Brenas et al. 2019, Sustainable Dev. Review
14,347
kg fresh biomass per hectare
Biomass production at 150 days after planting, Zamboanga Peninsula, Philippines trial.
Dept. of Agriculture Region 9, Zamboanga Cover Crop Trial
95.66%
Decomposition within 3 months
Releasing tissue nutrients: 3.572% N, 0.245% P, 0.809% K back into the root zone.
Dept. of Agriculture Region 9, Zamboanga Cover Crop Trial
88% / 98%
Less runoff / less soil loss
Versus bare soil in replanted rubber plantations. 2024 peer-reviewed study.
Perron et al. 2024, Science of the Total Environment
30%
N fertiliser substitution
Green manure legumes including Pueraria javanica can substitute up to 30% of nitrogen fertiliser in coconut basins.
Indian Coconut Journal 2022, Coconut Board of India

All statistics from peer-reviewed or institutional research. Seeds supplied by Chemiseed Sdn. Bhd., available for export worldwide. View Perron et al. 2024 erosion study

How to Order

Small quantities / Retail: For single packs and smaller quantities, shop our retail stores on Shopee and TikTok Shop.

Bulk / Estate: For plantation-scale orders (100 kg+), request a bulk quote with volume discounts.

Export / International: We ship globally. Contact us for CIF/FOB pricing and export documentation.

Marketplace: Retail packs available on Shopee Malaysia and TikTok Shop.

Plan with our free calculators

Estimate the nitrogen this cover crop can contribute with the Nitrogen Fixation Calculator, model erosion control with the Soil Erosion Calculator, or work out the seed quantity with the Cover Crop Calculator. Browse all our plantation tools.

Last reviewed June 2026 by Chemiseed Sdn. Bhd.

Shipping Notes
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Exchange/Return Notes
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SKU: 29993874571

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4.2 ★★★★★
Based on 21 reviews
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Product Reviews
J
Verified Purchase
JJ
Grantham, US
★★★★★ 5
3rd Update! See review... Good stuff and works as advertised...
Update - 3rd oil change/flush. Engine oil draining from engine is waaaay cleaner than my first flush. Probably won't need to do a 4th time for several changes. I added Ceratec at this change and am amazed how much better the engine performs since my initial flush. Less clatter and very smooth idle. (Jeep 4.0 I6) Update- 2nd change and used the flush again. About 7000 miles from first use. The oil was cleaner and less "gunky" as first time but oil was definitely dirtier than normal. Right away noticed off idle throttle response improved. Then on a drive I take regularly with a mountain pass and long downhill I noticed that even tho the jeep downshifted out of OD it took much less throttle to hold 65 up a long grade. On the downhill normally I would see 50-60 mpg max on the digital readout. This time. It went to 99 which to me indicates more vaccum below the throttle plate. My guess is the rings freed up a bit more than the first flush and highway mileage is up to 23+ where I would get 21 before. Nice! Used in 2001 Jeep Grand Cherokee. 140k miles and a ticking lifter (common in the 4.0 - 6 cylinder...). Definitely cleaned sludge (oil filter very heavy!) and oil was dark when draining. Idles smoother, oil stays cleaner longer, slight oil pressure increase and runs cooler. The lifter still ticks but probably a cam lobe issue. Will use it after 7500 miles or 1 year. Will report back after next change.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2017
J
Verified Purchase
J N Brown
New York, US
★★★★★ 5
Tips and tricks
I watched several videos by professionals who used this. Follow instructions. Make sure the engine is warm before you put it in. Make sure you have everything you need. The biggest tip I got that was repeatedly emphasized by the pros was to buy a “cheap” oil in addition to the new oil. After you run the flush drain the oil and flush. Put the cheap oil in and “rinse” the inside of the engine with the cheap oil. Then drain again. Replace the oil and filter with your good stuff. I followed these instructions or suggestions and…. I sat in the truck while the flush was running. It’s a 13 year old truck with 150,000 miles. It was running strong but burning oil and kind of loud. Sounded like it was growling. There were some ticking type noises that made me nervous. As I sat in the truck and let the flush cycle through the engine at idle I could literally hear the flush working. Very slowly it was like someone gave the engine a Xanax and you could hear it getting quieter and calming down. I drained, rinsed with cheap oil only letting the cheap oil run through at idle for another 15 minutes then drained again. The oil flush was clearly important. It didn’t come out as black as the first drain but it looked like old nasty oil. The truck is no longer burning oil. My gas mileage has increased significantly and it is running so quiet and smooth it’s unbelievable. I used a little less of the liquid Molly flush than it called for regarding the flush to oil ratio. I didn’t want to do something too intense to the inside of the engine. But the results were remarkable. Just as advertised after following the instructions. I also added the liquid Molly oil additive to the final oil change to ‘lube’ the inside of the engine. I plan to do another flush in about 10,000 miles. All that to say, yes, you won’t be disappointed as long as you follow instructions and a few tips and tricks. My truck is almost running like a brand new truck and again it’s an old and tired truck. I will use this as part of a high mileage maintenance and perform the flush every 50,000 miles or so. I feel confident it will extend the life of my engine based on the results
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2024
C
Verified Purchase
ChimChim
Louisville, US
★★★★★ 4
Seems to have helped
Bought a used 2020 Jeep Sahara 2 liter turbo charged with 80k miles from a dealership. Dealership had just changed oil the day of purchase. Drove it home 30 miles down interstate and another 20 back roads, it ticked and tapped allot at idle and the dip stick was varnished. I added the flush, let it idle for 10 minutes and drained it. The new oil from the dealership drained out jet black, no light could pass thru it. I changed the oil with Walmart oil and a cheap oil filter and let it idle for 5 minutes to clean out all the engine flush, it drained out clean and clear. I refilled it with Pennzoil Platinum High Mileage oil and a Fram Ultra Synthetic oil filter. It's been a week and the engine is noticeably quieter and smoother since using this product. If nothing else it cleaned allot of carbon from inside of my engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
T
Verified Purchase
The Inspector
Alexandria, US
★★★★★ 5
HOLY CRAP!!!!
So my 2005 Durango has a 5.7 and I put on 253,000 miles on it before it blew a head gasket. Since it was summer, iI decided I'd tackle it myself. The upper end was so full of gunk, I can't believe I hadn't had serious issues. Anyway, I apparently dropped some pieces of crud down the oil channels, 'cuz after putting it all back together, I got alarms for low oil pressure. Figuring I'd try anything else before replacing the oil pump, i gave this stuff a try. WOW!!!! Not only did the oil pressure return, the engine runs SO much smoother! I had forgotten how smooth it ran when it was new. The caveat is that apparently the gunk was the only thing keeping some areas from leaking - as it lost oil at a startling rate. 1 bottle of the Liqui Oil Saver though, and within a week the oil leaks completely stopped.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2025
M
Verified Purchase
Marlana Lupo
Boise, US
★★★★★ 5
Awesome!!
Had a check engine light come on for cam shaft position. Did some research online about the specific code and found that I could be due to sludge in the engine. Added this and ran for about 30 minutes and then had the oil changed. The light never came back on and the engine is running smooth and quiet. Will definitely use again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026

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