Fertilizers & plant nutrition

Micronutrient Fertilizers for Commercial Crops

Micronutrient spend is small and its yield leverage is disproportionate — in both directions. Iron applied as the wrong chelate on calcareous soil is money discarded; boron over-applied is phytotoxic. Selection is driven by soil pH, irrigation-water chemistry and tissue analysis, and the specification must state the chelating agent, not just the element.

Direct answer

Why does ortho-ortho content matter for iron?

Only the ortho-ortho isomer of EDDHA holds iron plant-available at high pH. Two products with identical labelled iron can perform very differently. Foliar corrects fast but briefly; fertigation sustains supply. Most commercial programmes use both, sequenced by growth stage.

Availability and the ability to trade depend on the law of each origin, destination and transit country and on the relevant permits and approvals. SeedMatch Group is not a manufacturer, importer, exporter, seller or regulatory approver; requests are reviewed by our team before any commercial introduction. Each participant is responsible for the requirements of its own role under applicable law: suppliers for their products in the origin and destination countries, buyers for their own import permissions and due diligence. We do not guarantee any supplier's compliance. Participant responsibilities · Regulation & restricted items

Commercial applications

  • Correction of diagnosed deficiencies from tissue and soil analysis
  • Preventive programmes on calcareous or sandy soils
  • Foliar rescue applications at critical growth stages
  • Micronutrient inclusion in fertigation recipes

Who procures this

  • Orchards, vines and plantation crops
  • Protected vegetable production
  • High-yield cereal and oilseed systems

Why it matters commercially

Diagnosis-led spend

Applications follow analysis, which avoids both hidden yield loss and unnecessary product.

Chelate fit

EDDHA, DTPA and EDTA are selected against soil and water pH so the element remains plant-available.

Safety margins

Boron and copper programmes are specified with explicit maximum rates to prevent phytotoxicity.

What a complete RFQ specifies

Technical specification lines

Element & form
Fe, Zn, Mn, B, Cu, Mo — sulphate, oxide, chelate or complex
Chelating agent
EDTA / DTPA / EDDHA with ortho-ortho isomer content where applicable
pH stability range
Stated range matched to soil and irrigation-water pH
Application route
Fertigation, foliar or soil-applied with rate per hectare
Assay
Guaranteed element content per lot with method reference

Typical project sizes

Orchard correction programme
2 – 20 t / year
Estate preventive programme
20 – 150 t / year
Distributor / blender supply
300 t+ / year

Standards, registrations and certification

  • EU fertilising product rules or destination registration
  • Ortho-ortho EDDHA content declared and independently verifiable
  • ISO/AOAC analytical methods per certificate of analysis
  • Residue and heavy-metal limits for export crops

Frequently asked questions

Only the ortho-ortho isomer of EDDHA holds iron plant-available at high pH. Two products with identical labelled iron can perform very differently.

Foliar corrects fast but briefly; fertigation sustains supply. Most commercial programmes use both, sequenced by growth stage.

You describe the requirement once. SeedMatchGroup structures it into a technically complete RFQ, runs a confidential process with qualified manufacturers in several producing regions, and returns a like-for-like comparison of specification, compliance documentation, lead time and landed cost. Supplier identities are only disclosed when you decide to contract.

The manufacturer. The supply contract is concluded directly between the manufacturer and the buyer. SeedMatchGroup is not a party to it and gives no product warranty. Registration in the country of use, import permits and application decisions remain the buyer's responsibility — see the fertilizer regulations overview and the platform disclaimer.

A lot-level certificate of analysis, safety data sheet in the language of the destination, label artwork and claims, proof of manufacturing quality system, registration or notification status in the destination market, and packaging and stability data for the transport route being quoted.

Input programmes are frequently structured with trade finance, supplier credit or a seasonal working-capital facility rather than paid from cash flow. The financing conversation runs in parallel with the technical evaluation so payment terms are part of the comparison rather than an afterthought.

As a rule of thumb, direct international procurement starts to price better than regional distribution from roughly one full container upwards, or where the specification is technical enough that local availability dictates the programme instead of the agronomy.

More in plant nutrition

Legal notice · No warranty · Manufacturer–buyer contract

The contract is between the manufacturer and the buyer. SeedMatchGroup is not a party to it.

SeedMatchGroup is an independent, supplier-neutral sourcing and introduction service. We do not manufacture, formulate, blend, register, certify, store, transport, apply, import, export or sell any fertilizer, crop-protection product, biological, seed, equipment or other input. Every supply agreement, price, warranty, specification, certificate of analysis, registration, label and delivery obligation is concluded and performed directly between the manufacturer or supplier and the buyer.

SeedMatchGroup gives no warranty for any product, quotation or supplier. Claims about product defects, non-conforming consignments, rejected imports, residue exceedances, regulatory penalties, crop damage, delays or supplier insolvency are to be pursued against the contracting manufacturer or supplier under the supply contract. SeedMatchGroup's own liability — including what it never excludes — is set out in the Terms of Service. Nothing on this page is legal or regulatory advice; buyers must verify current requirements with the competent authority in each relevant jurisdiction.

הודעה משפטית: SeedMatchGroup היא שירות רכש ותיווך עצמאי בלבד. איננו מייצרים, מפעילים, רושמים, מאשרים, מייבאים או מוכרים דשנים, תכשירי הגנת הצומח, תשומות או ציוד. ההתקשרות המסחרית נכרתת במישרין בין היצרן/הספק לבין הקונה, והם בלבד אחראים לאיכות המוצר, לרישום ולעמידה ברגולציה, לאספקה, להובלה ולתוצאה החקלאית. SeedMatchGroup אינה נותנת אחריות למוצר, להצעה או לספק, ותביעות בגין המוצר יופנו לספק המתקשר על פי חוזה האספקה. חבותה של SeedMatchGroup עצמה, לרבות מה שאינו מוגבל לעולם, מפורטת בתנאי השימוש (באנגלית). אין באמור ייעוץ משפטי או רגולטורי.

How this guidance is produced

Supplier-neutral

We do not manufacture equipment and do not represent a fixed vendor list. Guidance reflects the project, not a catalogue.

Human-led review

Content is prepared and reviewed by sourcing specialists working on live commercial agriculture projects, supported by proprietary technology.

International scope

Practice drawn from greenhouse, CEA, irrigation, nursery, packing-house and processing projects across multiple climates and regulatory environments.

Confidential by default

Project details stay private. Nothing is published, listed or shared with suppliers without your approval.

Editorial approach and company background: About SeedMatch Group.

What to do next

Most organizations move through these four steps in order. Each one can be started independently, and nothing is shared with suppliers until you approve the scope.

Next step

Turn this into a live commercial project

Open one private brief. A sourcing specialist validates and organises the RFQ, manages outreach to suitable independent suppliers, and presents any responses through SeedMatch on a consistent technical and commercial basis. Response numbers and timing are not guaranteed.