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AgroDex Mg is a naturally complexed magnesium formulation designed to rapidly correct and prevent magnesium deficiencies in a wide range of crops and soils. It contains organic acids and amino acids that enhance nutrient chelation and mobility, ensuring effective uptake and translocation within the plant. As magnesium is the central atom in chlorophyll, AgroDex Mg plays an essential role in photosynthesis, energy production, and overall crop performance. This product helps maintain balanced nutrition, especially in soils affected by heavy potassium fertiliser use.
| Component | % w/v (AUST.) | % w/w (INT.) |
|---|---|---|
| Nitrogen (as Amino Acids) | 0.5 | 0.42 |
| Sulphur (as Sulphate) | 4 | 3.4 |
| Magnesium (as Sulphate) | 3 | 2.5 |
| Biostimulants (as Organic & Amino Acids) | 8 | 6.8 |
| Characteristic | Value |
|---|---|
| Colour | Light Brown |
| Specific Gravity | 1.16 - 1.2 |
| pH | 2.7 - 3.1 |
| Available Sizes | 5L, 20L, 200L, 1000L |
| Crop Type | Rate / ha | Dilution | Application Timing |
|---|---|---|---|
| Broadacre / Cotton | 1 - 3 L | 1:50 | Early flowering and seed set |
| Vegetables | 2.5 - 5 L | 1:150 | As required |
| Stone / Pome Fruit | 1 - 3 L | 1:100 | First spray on leaf emergence and early flowering |
| Nut Crops / Olives | 1 - 3 L | 1:100 | Pre-flowering |
| Subtropical Crops | 2.5 - 5 L | 1:100 | Bud development and early flush |
| Grape Vines | 2 - 3 L | 1:200 | Minimum of two pre-flowering sprays |
| Turf | 200 mL / 100 m² | 1:50 | As required to correct deficiencies |
| Water Rate | 1 L / 100 L | - | Typical 0.5% product (500 mL per 100 L of water) |
AgroDex Mg delivers fast correction of magnesium deficiencies that can limit plant growth and photosynthetic activity. Its organic and amino acid complex promotes superior absorption through both foliage and roots. This product supports chlorophyll development, stronger leaf colour, and more efficient energy production within the plant. By balancing magnesium levels, AgroDex Mg also reduces the risk of nutritional imbalances caused by excessive potassium or calcium fertiliser use, resulting in healthier, more productive crops.
Why is magnesium important for crop growth, and how does AgroDex Mg help?
Magnesium is the central atom in chlorophyll, the molecule responsible for capturing sunlight and converting it into energy for plant growth. Without sufficient magnesium, plants suffer from yellowing leaves, weak photosynthesis, and reduced productivity. AgroDex Mg helps by:
Regular use of AgroDex Mg enhances plant energy efficiency, improves fruit and leaf colour, and supports overall yield and crop quality.
| File | Title | File Description | Type | Section |
|---|---|---|---|---|
| Agrodex_Mg_2022.pdf | AGRODEX Mg | AgroDex Mg is a highly available naturally complex element, formulated to rapidly correct and prevent deficiencies in a wide variety of crops and soils. | Catalogue | Document |
A successful Grove Management Plan must cover these key areas:
"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.
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:
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 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.
URGENT FERTILISER SUPPLY UPDATE – MAP & DAP SHORTAGE
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.
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:
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:
For olive growers and other professional producers, the impacts are already being felt:
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.