Organica Bio-Hi-K – Liquid Potassium 24% Foliar Plus

High-purity liquid potassium for improved fruit quality, shelf life, and crop resilience.
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Organica Bio-Hi-K – Liquid Potassium 24% Foliar Plus

High-purity liquid potassium for improved fruit quality, shelf life, and crop resilience.

Organica Bio-Hi-K (Foliar Plus) is a high-analysis liquid potassium fertiliser providing 24% pure potassium (K) in a completely soluble, low-salt formulation. Designed for fruit trees, vegetables, vines, pastures, and broadacre crops, Bio-Hi-K delivers rapid potassium uptake and efficient nutrient balance for improved fruit fill, colour, and storage life.

This product is free from nitrates, sulphates, and chlorides, ensuring safe use on sensitive or salt-intolerant crops. Enhanced with silica and chelated trace elements, Bio-Hi-K strengthens fruit structure, delays senescence, and supports plant recovery after stress. A special formulation is also available with added Boron (1%) to assist with flowering, pollination, and fruit set.

Uses – For Crop Yield, Fruit Fill, and Stress Recovery

Organica Bio-Hi-K is ideal for crops requiring an immediate source of potassium during periods of high demand such as flowering and fruit-fill. It enhances Brix levels, supports sugar translocation, and improves post-harvest quality.
Suitable for foliar or fertigation applications, it helps maintain the correct N:K ratio within plants, stabilising growth, yield, and fruit size while being bee-safe and compatible with organic systems.

Technical Specifications
Nutrient Typical Analysis (W/V)
Potassium (organic) 24.0%
Nitrogen (as organic liquid) 0.6%
Sulphur (organic) 0.25%
Iron 0.17%
Manganese 0.10%
Zinc 0.02%
Boron (optional) 1.0% (standard 0.15%)
Iodine 0.01%
Silica 0.02%
Rare Earth Minerals 0.005%
Vitamin B1 0.05%
Sugars (micro-feed) 2.0%
Filtration Final filtered to 50 microns
Certification Australian Organic Farm Input No. 442

Compatibility

Bio-Hi-K is compatible with most fertilisers and crop protection inputs. Avoid mixing with highly acidic or phosphate-based products. Suitable for foliar spray or fertigation through drip, pivot, or boom systems.
Do not use a wetting agent. Store in a cool, shaded area out of direct sunlight to preserve nutrient integrity.

Why Choose This Product

Organica Bio-Hi-K provides a fast-acting and completely soluble potassium source that supports improved fruit fill and crop quality. Its low salt index makes it safe across diverse horticultural systems, while the silica and optional boron addition strengthen tissue structure and reproductive development. Reliable, organic-certified, and easy to apply, Bio-Hi-K is an essential tool for premium fruit and nut production.

Frequently Asked Questions

Bio-Hi-K is a high-purity liquid potassium fertiliser designed for rapid correction of potassium deficiencies and for use during periods of high potassium demand such as fruit-fill and maturation. Containing 24% instantly available potassium, it supports improved fruit quality, colour, size, and sweetness (Brix). Its low-salt, chloride-free formulation makes it suitable for sensitive crops and foliar application without risk of leaf burn. Additionally, silica in the formula enhances cell wall strength and shelf life, while optional 1% boron improves pollination and fruit set, ensuring consistent productivity and post-harvest performance.
Bio-Hi-K is a completely soluble, low-salt, and nitrate-free formulation — meaning it provides rapid foliar absorption and minimal environmental stress. Unlike traditional potassium sulphate or nitrate-based products, Bio-Hi-K offers immediate uptake within 24 hours of application and is gentle on foliage. It helps balance the Nitrogen-to-Potassium (N:K) ratio, which is vital for maintaining strong flowering, fruit development, and overall plant vigour. This makes it particularly beneficial in salinity-prone soils, flowering crops, or late-season fruit finishing programs.
  • Pre-plant: 2 L in 200 L of water.
  • Fertigation: Dilute 1:300, up to 10 L/ha.
  • Foliar spray: 200 mL per 100 L of water.
  • Application timing: During fruit-fill, colour development, or whenever potassium demand peaks.
  • Reapplication: Every 10–14 days during active fruiting or stress conditions.
Do not use a wetting agent. Apply during the cooler parts of the day (morning or late afternoon) for maximum foliar absorption.
  • Improves fruit size, sweetness (Brix), and colour uniformity.
  • Accelerates potassium uptake for immediate results in fruiting and maturation stages.
  • Enhances stress tolerance by supporting osmotic balance and water regulation.
  • Contains silica to strengthen cell walls and extend storage life.
  • Gentle on foliage — ideal for foliar use even on sensitive crops.
  • Balances N:K ratio, improving plant metabolism and flowering consistency.
  • Organic-certified input (Australian Organic Farm Input No. 442) — safe for organic and sustainable production systems.

By supplying readily available potassium with supportive micronutrients and silica, Bio-Hi-K ensures superior fruit finish, consistent quality, and high market value across all crop types.

 
Key Features

• Contains 24% potassium in a fully soluble liquid form
• Instant nutrient uptake through foliage or root systems
• Low salt index – safe for salt-sensitive crops
• Free from nitrates, sulphates, and chlorides
• Silica inclusion enhances fruit firmness and skin quality
• Improves Brix, colour, and shelf life in fruit crops
• Supports flowering, fruit-fill, and stress recovery
• Optional formulation available with 1% added Boron
• Contains chelated trace elements for balanced nutrition
• Made in Queensland, Australia and certified for organic input
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Label-HiK-Label-06-22.pdf Organica Bio-Hi-K – Liquid Potassium 24% Foliar Plus Safety Data Sheet Specifications Document

4 Factors In Grove Management To Focus On For Next Olive Harvest

The Grove Management Plan: Essential Areas to Focus On

A successful Grove Management Plan must cover these key areas:

  • Irrigation
  • Nutrition
  • Pruning 
  • Pest and Disease Control

Irrigation

"A grove without an effective irrigation system is unlikely to deliver consistent yields year after year. Many growers still underestimate the water needs of olive trees, and few actually monitor soil moisture levels. This is why so many groves have never achieved a commercial crop."  Marcelo Berlanda Specialist Olive Consultant

Water stress negatively affects flowering, fruit set, oil accumulation (oil production), fruit size (table olives), fruit quality, and overall tree health. However, many growers lack a proper system to monitor soil moisture or manage irrigation effectively. 

Marcelo recommends:

"Growers should inspect soil moisture weekly during spring and summer, and every two weeks in autumn and winter. Use a shovel to dig at least 400mm under the tree canopy to check moisture. If the soil is hard to dig, it’s too dry – even if the canopy shows no visible signs of stress." 

Advanced soil moisture monitoring tools can also provide reliable data on a digital display or computer dashboard. 

For optimal grove health, growers must consistently check soil moisture and prevent water stress.

Nutrition

As discussed previously, taking leaf samples is essential to assess your trees’ nutritional status. This information guides the creation of a fertiliser program, a critical component for boosting or maintaining yields.

Typically, no fertiliser is needed in winter, unless you’re addressing soil amendments. However, some groves have severe nutrient deficiencies requiring fertiliser even in winter. Where proper irrigation systems aren’t in place, growers must broadcast fertiliser before rain to allow rainfall to incorporate nutrients into the soil profile, an inefficient use of resources but often the only option.

When applying fertiliser in these conditions, target the area beneath the canopy and, if possible, cultivate the soil to improve incorporation and reduce product loss.

Olives need four essential nutrients: Nitrogen, Phosphorus, Potassium, and Calcium. Check product labels carefully. As a general guideline, aim for:

  • Nitrogen 15%
  • Phosphorus 5% or less
  • Potassium 10% or less
  • Calcium 2% or less

Pruning

Avoid pruning during the coldest part of winter and when it’s wet or foggy to reduce the risk of bacterial and fungal disease spread.

The main goals of pruning are to remove dead wood, reduce canopy size, restore tree balance, encourage healthy new growth, and increase fruit set in spring.

Tip: After pruning, apply a copper-based spray to protect wounds from infection by fungi and bacteria.

Pest and Disease Control

Pest and disease management is crucial for sustaining yield and tree health. Winter’s colder temperatures reduce insect activity, offering a prime time to tackle pest issues.

Set up a comprehensive Pest and Disease Monitoring Program. During winter, check marked trees (previously affected by pests or diseases) every two weeks; in spring, check weekly. Look under leaves and on new growth for signs like crawlers, yellow spots, black sooty mold, or anything unusual.

Proactive, weekly management is essential for a successful grove.

If you need further assistance, please contact us.


Global Shortage of MAP (Monoammonium Phosphate) & DAP (Diammonium Phosphate)

INDUSTRY UPDATE

URGENT FERTILISER SUPPLY UPDATE - MAP & DAP SHORTAGE

Global Shortage of MAP (Monoammonium Phosphate) & DAP (Diammonium Phosphate)

This summer cropping season is facing unprecedented challenges in fertiliser supply. Availability of MAP fertiliser (monoammonium phosphate) and DAP fertiliser (diammonium phosphate) is expected to remain extremely limited worldwide, with serious implications for growers planning their nutrient programs.

Why is Fertiliser Supply Tight?

China’s Export Restrictions Continue

Since 2021, China has imposed strict quotas and inspection rules on phosphate fertiliser exports to protect domestic prices and safeguard food security. The impact has been dramatic:

  • March 2025 exports: just 13,000 tonnes, compared with 950,000 tonnes in March 2022.
  • Q1 2025 exports: 111,000 tonnes, versus a three-year average of 785,000 tonnes.

China’s internal demand continues to climb due to increased grain production and the rapid growth of the electric vehicle industry, especially in battery manufacturing. Analysts predict that restrictions will remain in place-or even tighten-throughout 2025.

Other Suppliers Cannot Fill the Gap

Although Morocco, Russia, the USA, and Saudi Arabia also produce MAP and DAP, they cannot offset the sharp drop in Chinese exports. The result is:

  • Rising global fertiliser prices
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Global Shortage of MAP (Monoammonium Phosphate) & DAP (Diammonium Phosphate)

URGENT FERTILISER SUPPLY UPDATE – MAP & DAP SHORTAGE

Global Shortage of MAP (Monoammonium Phosphate) & DAP (Diammonium Phosphate)

This summer cropping season is facing unprecedented challenges in fertiliser supply. Availability of MAP fertiliser (monoammonium phosphate) and DAP fertiliser (diammonium phosphate) is expected to remain extremely limited worldwide, with serious implications for growers planning their nutrient programs.

Why is Fertiliser Supply Tight

China’s Export Restrictions Continue

Since 2021, China has imposed strict quotas and inspection rules on phosphate fertiliser exports to protect domestic prices and safeguard food security. 

The impact has been dramatic:

  • March 2025 exports: just 13,000 tonnes, compared with 950,000 tonnes in March 2022.
  • Q1 2025 exports: 111,000 tonnes, versus a three-year average of 785,000 tonnes.
China’s internal demand continues to climb due to increased grain production and the rapid growth of the electric vehicle industry, especially in battery manufacturing. Analysts predict that restrictions will remain in place... or even tighten... throughout 2025.

Other Suppliers Cannot Fill the Gap

Although Morocco, Russia, the USA, and Saudi Arabia also produce MAP and DAP, they cannot offset the sharp drop in Chinese exports. 

The result is:

  • Rising global fertiliser prices
  • Longer delivery lead times
  • Stricter supplier allocations
  • Reduced pricing flexibility across the summer cropping season

What This Means for Growers

For olive growers and other professional producers, the impacts are already being felt:

  • Reduced fertiliser availability for summer cropping
  • Higher input costs with delivery delays
  • Less flexibility in nutrient timing and program planning

Looking forward, risks include:
  • Reduced or cancelled fertiliser allocations
  • Possible product unavailability at short notice
  • Last-minute program changes forced by supply shortages

Our Recommendations - Secure Your Supply Now

Do not wait for traditional ordering windows. Place orders immediately and consider forward contracting for next season. Securing current pricing now helps protect your operation against higher costs and potential shortages later.

Optimise Your Nutrient Strategy

  • Review alternative phosphate fertiliser options
  • Adjust application rates where agronomically feasible
  • Consider split applications to maximise nutrient efficiency
  • Explore precision application technologies to reduce overall fertiliser requirements