Bio-Organic Fertiliser Rates & Application Schedule Guide

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Matching Nutrient Demand with Soil Biology

Maximising return on investment with bio-organic fertiliser requires synchronising application timing with the crop's physiological growth stages. Unlike synthetic chemical NPK salts that leach rapidly during heavy monsoonal rain, bio-organic inputs compliant with Malaysian Standard MS 1517:2012 release nutrients gradually while enhancing soil Cation Exchange Capacity (CEC).

1. Oil Palm (Sawit) Application Schedule

NEXGROW bio-organic fertiliser is applied around the palm weeded circle (2.0 to 2.5m radius from the trunk). Rates from the NEXGROW oil palm product profile (Feb 2025):

• Young palms (1 to 4 years): 1 kg per palm every 6 months in year 1, then 2, 3 and 4 kg per palm per year in years 2, 3 and 4.
• Mature palms (5 years and above): 5 kg per palm per year. Final dosage is determined by the actual local condition of the soil, crop and weather pattern.

2. Durian (Musang King / Black Thorn) Schedule

Durian orchards require continuous humic-rich organic matter to prevent root dieback and maintain leaf flushing prior to floral initiation:

• Post-Harvest (trees 5 years and above): 3 kg per tree under the canopy dripline, applied after harvest.
• Young trees: 250 g per planting hole at planting, then 500 g, 750 g, 1 kg and 2 kg per tree at 1, 2, 3 and 4 years (NEXGROW product booklet).

3. Paddy Rice (Padi) Schedule

In flooded paddy fields, aerobic bio-organic inputs improve soil structure during land preparation (presowing) and accelerate tillering when broadcasted at Day 15 to 20 after transplanting/seeding. The NEXGROW product booklet sets the paddy rate by soil cation exchange capacity (CEC, cmol(+)/kg): 400 kg/ha above 20, 1 to 2 t/ha at 10 to 20, and 3 to 5 t/ha below 10.

Calculate Your Exact Estate Requirements

Application rates vary depending on soil pH, organic carbon baseline, and plant density. Use our free online rate calculator tool to get instant recommendations for your acreage.