DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation
DTPA HEDTA chelation

DTPA HEDTA chelation

DTPA&HEDTA Chelations 

DTPA Fe      10.5%-11%

HEDTA Fe      12.8%

EDTA Fe  12.7%-13.3%

EDTA Zn  14.7%-15.3%

EDTA Cu  14.7%-15.3%

EDTA Mn 12.7%-13.3%

EDTA Ca   9.5%-10%

EDTA Mg  5.5%-6%

EDDHA Fe    6%

EDDHMA Fe  6%

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DTPA&HEDTA Chelations

ProductAppearanceContentpH(1%solution)Water insoluble
DTPA FeYellow powder10.5-11%4-6≤0.1%
DTPA FE(NH4)2Deep yellow liquid6.5-7%6.8-8.5≤0.1%
HEDTA FeRed-brown powder12.8%5.5-7.0≤0.1%


EDTA chelations

ProductAppearanceContentpH(1%solution)Water insoluble
EDTA FeYellow powder12.7-13.3%3.5-5.5≤0.1%
EDTA CuBlue powder14.7-15.3%5-7≤0.1%
EDTA MnLight pink powder12.7-13.3%5-7≤0.1%
EDTA ZnWhite powder14.7-15.3%5-7≤0.1%
EDTA CaWhite powder9.5-10%5-7≤0.1%
EDTA MgWhite powder5.5-6%5-7≤0.1%
EDTA chelated rare-earth elementWhite powderREO≥20%3.5-5.5≤0.1%

 EDDHA Chelations

ProductAppearanceContentortho-orthopH(1%solution)Water insoluble
EDDHA FeBrownish red granule/Red black powder6%1.8-4.87-9≤0.1%
EDDHMA FeRed black powder6%1.8-4.87-9≤0.1%


Micronutrients Series

Productmicronutrients
NCCM-01Fe，Cu，Mn，Zn，Ca，Mg，Mo，Co


Product stability and pH

Different types of chelating agents are used in the YUDA Micronutrients product range. These are designated  EDDHA, DTPA and EDTA.   The type of chelating agent recommended depends mainly on the method of application, the crop, and the pH value of the soil or other growth media. The active pH ranges of the products are shown in figures 1 and 2. It is the sensitivity to the pH of the iron chelates which has necessitated the broad product range for Fe. For all other metals i.e. Ca, Cu, Mg, Mn and Zn mainly EDTA is used.   For foliar application invariably EDTA is used as a chelating agent for all trace elements including iron. In hard water areas, Fe-DTPA is recommended. In soil application EDDHA are the preferable chelating agents for ensuring iron availability in alkaline soils.  DTPA and EDTA are also effective in less alkaline or acidic soils (see figure 1). For the other trace elements EDTA is the most common chelating agent (see figure 2).

Plant sensitivity

Our micronutrients are fully chelated and completely soluble in water. Some of them can be applied directly to the soil for root uptake, others via foliar sprays. They are compatible with a wide range of fertilizers and pesticides. Some are also eminently suited for use in soilless cultures (hydroponics), as there is no formation of precipitates within the active pH ranges. The most effective method of application will depend on location conditions, particularly the pH value of the soil or growth medium.
Chelated micronutrients are most commonly applied in solution with liquid fertilizers and/or pesticides. However, micronutrients can also be applied alone.
Chelated micronutrients are often more effective than trace elements from inorganic sources. This may be largely because chelates not only guarantee the availability of micronutrients, but also facilitate absorption of the trace elements by the leaves.
 The EC value (Electrical Conductivity) is important for foliar feed products: the lower the EC, the less the chance of leaf scorching.



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