覆盖作物种子 | Pueraria javanica (PJ)
请向Chemiseed订购爪哇葛（PJ）种子。这种耐旱豆科覆盖作物非常适合马来西亚的油棕种植园。自2003年起提供批量采购价格。
快速事实
植物特征
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 fixes approximately 250 kg of nitrogen per hectare per year — with 85–93% of that nitrogen drawn directly from the atmosphere. In replanted rubber, a legume cover including Pueraria reduced runoff by 88% and soil loss by 98% versus bare soil (Perron et al., 2024).
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
Monoculture or 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
数据一览
Data from peer-reviewed trials across Malaysia, Indonesia, and the Philippines (rubber, coconut, and replanting systems).
All statistics from peer-reviewed or institutional research. View Perron et al. 2024 erosion study →
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