Benih Tanaman Penutup Bumi Pueraria javanica (PJ)
Pueraria javanica
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CIRI-CIRI TUMBUHAN
Kekacang tahunan/pendek abadi yang tumbuh cepat, menjalar hingga memanjat. Membentuk penutup tanah yang padat dan boleh menjana semula sendiri di bawah kanopi ladang. Sistem akar yang dalam menyumbang kepada akses kelembapan tanah bawah dan kitaran nutrien.
KEGUNAAN
Penetapan nitrogen, kawalan hakisan, pengekalan kelembapan tanah, kitaran kalium, penindasan rumpai, dan tanaman penutup untuk fasa penanaman semula. Dalam getah muda, penyelidikan lapangan mengesahkan Pueraria javanica dapat menetapkan sehingga 250 kg nitrogen per hektar setahun, dengan 85-93% nitrogen tersebut diambil terus dari atmosfera pada penutup tanah penuh. Dalam getah tanam semula, penutup kekacang termasuk Pueraria mengurangkan larian air sebanyak 88% dan kehilangan tanah sebanyak 98% berbanding tanah kosong (Perron et al., 2024). Untuk hasil percambahan optimum, padankan dengan Pengaktif Benih semasa menanam. Lihat juga: Perbandingan PJ vs MB.
TABIAT PERTUMBUHAN
Pertumbuhan yang cergas di bawah cahaya matahari penuh dan teduhan sederhana. Menghasilkan 14,347 kg biojisim segar per hektar pada 150 hari dalam percubaan ladang Filipina. Biojisim reput sebanyak 95.66% dalam tempoh 3 bulan, melepaskan 3.572% N, 0.245% P, dan 0.809% K terus ke zon akar.
KEGUNAAN KELAPA & PELBAGAI TANAMAN
Ditubuhkan sebagai kekacang besen dalam kelapa, Pueraria javanica menyumbang 28.45 kg biojisim dan 196.2 g nitrogen per besen, dan boleh menggantikan sehingga 30% keperluan baja nitrogen (Indian Coconut Journal, 2022).
JENIS PENANAMAN & KADAR PENYEMAian
Tunggak tulen: 4-6 kg/ha; dalam campuran kekacang: 2-4 kg/ha
KAEDAH PENANAMAN
Penanaman terus, tabur atau baris
PENGELUARAN BAHAN KERING
8-12 t/ha/tahun
BIL. BIJI BENIH/KG
~55,000 biji benih
DIBEKALKAN OLEH CHEMISEED SDN. BHD.
Biji benih Pueraria javanica dibekalkan oleh Chemiseed Sdn. Bhd., sebuah syarikat pertanian tropika Malaysia yang mengkhususkan diri dalam biji benih penutup tanah, pengubah suai tanah, dan input ladang. Chemiseed adalah pembekal biji benih penutup tanah legum yang dipercayai di seluruh kawasan tropika.
KEBOLEHDAPATAN GLOBAL: KAWASAN TROPIKA SELURUH DUNIA
Chemiseed Sdn. Bhd. mengeksport biji benih Pueraria javanica ke ladang, koperasi pertanian, agensi kerajaan, dan pengedar di seluruh Asia Tenggara (Malaysia, Indonesia, Thailand, Vietnam, Myanmar, Kemboja, Filipina), Amerika Latin (Brazil, Colombia, Ecuador, Costa Rica, Guatemala, Honduras, Peru), Afrika Sub-Sahara (Ghana, Nigeria, Cameroon, Ivory Coast, Tanzania, Kenya, Mozambique, Uganda), Asia Selatan (India, Sri Lanka, Bangladesh), dan Oceania (Papua New Guinea, Kepulauan Solomon, Fiji). Semua penghantaran biji benih mematuhi pensijilan fitosanitasi antarabangsa dan piawaian pematuhan perdagangan. Hubungi Chemiseed Sdn. Bhd. untuk bekalan biji benih pukal, perkongsian pengedar, dan penghantaran antarabangsa.
Sumber Berkaitan
- Perbandingan Tanaman Penutup: PJ, CM, CP, MB
- Perbandingan Terperinci PJ vs MB
- Panduan Lengkap Pueraria javanica
- Tanaman Penutup Terbaik untuk Kelapa Sawit
- Tanaman Penutup Terbaik untuk Getah
- Kalkulator Tanaman Penutup
- Soalan Lazim
- Pengaktif Benih, Tingkatkan Percambahan
Mengikut nombor
Data dari percubaan yang disemak rakan sebaya di Malaysia, Indonesia, dan Filipina (getah, kelapa, dan sistem penanaman semula).
Semua statistik dari penyelidikan yang disemak rakan sebaya atau institusi. Biji benih dibekalkan oleh Chemiseed Sdn. Bhd., tersedia untuk eksport ke seluruh dunia. Lihat kajian hakisan Perron et al. 2024
Artikel Berkaitan
Baca lebih lanjut dari pangkalan pengetahuan agronomi Chemiseed:
- EUDR Ditangguhkan. Kewajipan Kebolehjejakan Anda Tidak.
- RM14,000 Per Hektar untuk Penanaman Semula. Ini Adalah Siapa yang Layak dan Cara Memohon.
- Mandat B40 Indonesia Telah Menarik 2 Juta Ton Minyak Sawit dari Pasaran.
- Urea Konvensional Kehilangan Sebahagian Besar Nitrogennya Sebelum Pokok Getah Dapat Menggunakannya.
Cara Memesan
Kuantiti kecil / Runcit: Untuk pek tunggal dan kuantiti yang lebih kecil, beli di kedai runcit kami di Shopee dan TikTok Shop.
Pukal / Estet: Untuk pesanan berskala ladang (100 kg+), minta sebut harga pukal dengan diskaun volum.
Eksport / Antarabangsa: Kami menghantar ke seluruh dunia. Hubungi kami untuk harga CIF/FOB dan dokumentasi eksport.
Pasaran: Pek runcit tersedia di Shopee Malaysia dan TikTok Shop.
Rancang dengan kalkulator percuma kami
Anggarkan nitrogen yang boleh disumbangkan oleh tanaman penutup ini dengan Kalkulator Penetapan Nitrogen, model kawalan hakisan dengan Kalkulator Hakisan Tanah, atau kira kuantiti benih dengan Kalkulator Tanaman Penutup. Semak semua alat ladang kami.
Disemak terakhir Jun 2026 oleh Chemiseed Sdn. Bhd.
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What is Pueraria javanica (PJ) and who is it for?
Pueraria javanica is a vigorous creeping and twining perennial legume widely used as a cover crop in rubber, coconut, and oil palm plantations. It fixes approximately 250 kg N/ha/yr with 85 to 93 percent of nitrogen derived from atmosphere (Vrignon-Brenas review), produces roughly 8 Mg/ha/yr aboveground biomass in immature rubber, and has been shown to reduce runoff by up to 88 percent on slopes (Perron 2024). PJ performs well on acidic tropical soils down to pH 3.5 but is not a drought specialist and is best suited for regions with reliable rainfall.
Quick facts: Pueraria javanica (PJ)
| Scientific name | Pueraria phaseoloides (syn. P. javanica) |
|---|---|
| Growth habit | Vigorous creeping/twining perennial legume |
| Seeding rate | 4-6 kg/ha (monoculture), 2-3 kg/ha (mixture) |
| Soil pH range | 3.5 - 6.0 |
| Shade tolerance | Moderate |
| Drought tolerance | Low to moderate (not a drought specialist) |
| N fixation | ~250 kg N/ha/yr, 85-93% Ndfa |
| Biomass production | ~8 Mg/ha/yr aboveground in immature rubber |
| Establishment speed | Moderate to slow (seed dormancy requires scarification) |
Where does Pueraria javanica (PJ) work best?
Best for
- Immature rubber plantations
- Coconut systems and coconut basin management
- Erosion-prone slopes (88% runoff reduction documented)
- Acidic tropical soils (tolerates pH as low as 3.5)
- Legume cover crop mixtures
Not ideal for
- Prolonged dry seasons or drought-prone regions
- Mature shaded canopy without companion species (CC or CP)
- Areas where rapid initial cover is critical (CM is faster)
What Pueraria javanica (PJ) will not do
PJ does not increase latex yield in rubber. There is no published evidence supporting a direct latex yield improvement from PJ cover. PJ does not prevent Tapping Panel Dryness. For coconut yield claims, the comparator matters: yield improvements are relative to bare-soil or unmanaged basins, not to other cover crop systems. Seed dormancy requires scarification for acceptable germination rates (untreated seed germinates at only 7-16% versus 73-91% with H2SO4 scarification).
How to establish and use Pueraria javanica (PJ)
Sow at 4 to 6 kg/ha for monoculture or 2 to 3 kg/ha when used in a legume mixture. Seed scarification is essential: untreated seed germinates at only 7 to 16 percent, compared to 73 to 91 percent with acid scarification. In coconut systems, follow the Thomas and Shantaram 1993 protocol for basin establishment. For erosion control on slopes, PJ can be combined with CM for fast initial cover followed by PJ persistence.
What does the research say about Pueraria javanica (PJ)?
- Vrignon-Brenas review documents N fixation of ~250 kg N/ha/yr with 85-93% Ndfa.
- Perron 2024 demonstrates 88% runoff reduction on slopes with PJ cover.
- Thomas and Shantaram 1993 provides the coconut basin cover crop protocol.
- Sri Lanka coconut yield research shows yield response relative to bare-soil comparator.
- Biomass data (~8 Mg/ha/yr) from immature rubber system studies.
Frequently asked questions about Pueraria javanica (PJ)
What is the recommended seeding rate for Pueraria javanica?
For monoculture establishment, use 4 to 6 kg/ha. When PJ is part of a legume mixture (commonly with CM and CP), reduce to 2 to 3 kg/ha. Scarified seed is strongly recommended for acceptable germination rates.
Does Pueraria javanica increase rubber latex yield?
There is no published evidence that PJ directly increases rubber latex yield. The documented benefits in rubber systems are soil nitrogen enrichment, weed suppression, and erosion reduction. PJ also does not prevent Tapping Panel Dryness.
Why is seed scarification important for PJ?
Untreated PJ seed has a germination rate of only 7 to 16 percent due to hard-seed dormancy. Acid scarification (H2SO4) increases germination to 73 to 91 percent. Without scarification, establishment will be poor and uneven.
How does Pueraria javanica perform in coconut systems?
PJ is used as a basin cover crop in coconut systems following the Thomas and Shantaram 1993 protocol. Yield improvements have been documented in Sri Lanka, but these are relative to bare-soil or unmanaged basins rather than to other cover crop systems.
What is PJ's role in erosion control?
Perron 2024 documented an 88 percent reduction in runoff on slopes with PJ cover. PJ's dense root system and surface biomass stabilize soil, making it one of the stronger erosion-control legumes for tropical slopes.
What to include in your inquiry
To help us provide accurate pricing and recommendations for Pueraria javanica (PJ), please include the following information when you contact us:
- Your plantation crop (rubber, coconut, oil palm)
- Soil type and approximate pH
- Annual rainfall and dry season length
- Terrain (flat, sloped)
- Planting area in hectares
- Whether you need scarified or untreated seed
- Your location (state/region in Malaysia)
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Chemiseed Sdn. Bhd.
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Documents available
Technical Data Sheet (TDS), Certificate of Analysis (COA) with germination data, Safety Data Sheet (SDS) where applicable, and phytosanitary certification (ISPM 7, NPPO Malaysia) for export are available on request.
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.