Agricultura · Guia de seleção

Guia de seleção de agentes quelantes agrícolas

Identificação

Agricultural

Chelating Agent

Selection Guide

Criteria EDTA GLDA MGDA DTPA

Best For

Best Metals

Preferred Soil pH

Recommended

Formulation pH

Preferred Metal

Salts

Força quelante

Biodegradabilidade

Typical Chelate:

Metal Ratio

Formulation

Advantages

When to Choose

Typical

Aplicações

General-purpose

Zn, Mn, Cu and Fe micronutrients

Zn, Mn, Cu, Fe (acidic to neutral pH)

Acidic to neutral (<6.5)

3.5–7.0

Alto

Sulfates, nitrates,

Propriedades e especificações

chlorides

Fraca

1.00–1.05 : 1

Lowest cost, proven performance, high metal loading

Cost-sensitive commodity fertilizers and standard

Zn/Mn/Cu products

Foliar nutrients, fertigation, liquid micronutrients, NPK blends

Sustainable micronutrients, mixedmetal fertilizers, biologicals, humic/seaweed products

Zn, Mn, Cu, mixed micronutrients

Acidic to neutral (<7.0)

2.5–7.0

Moderada

Sulfates (preferred), nitrates, chlorides

Excellent (readily biodegradable)

1.10–1.50 : 1

Excellent compatibility with

Aplicações e benefícios

biologicals, humics, seaweed extracts, hard water, and sustainable formulations

Premium sustainable fertilizers, biodegradable products, multimicronutrient blends

Premium foliar fertilizers, biological fertilizers, biostimulants, regenerative agriculture

Calcium- & magnesium -rich formulations, sustainable fertilizers

Ca, Mg, Zn, Mn

Acidic to neutral (<7.0)

3.5–8.0

Moderate-High

Sulfates, nitrates

Excellent (readily biodegradable)

1.05–1.20 : 1

Excellent calcium tolerance, broad compatibility, sustainable

Formulations containing calcium or

Uso, embalagem e armazenamento

magnesium or requiring biodegradable chelation

Specialty liquid fertilizers, calcium/ magnesium products, sustainable nutrition

Iron fertilizers, iron chlorosis correction, alkaline soils

Fe, Cu, Zn

Neutral to alkaline (6.5–8.5+)

4.0–8.5

Very High

Sulfates, nitrates

Fraca

1.00–1.05 : 1

Highest iron stability, longest shelf life for

Fe products, best high-pH performance

Iron fertilizers for alkaline/calcareous soils or where maximum

Fe stability is required

Iron chelates, fertigation, turf, ornamentals, orchards, vineyards, chlorosis correction