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Analysis

N 8.5
P 18.7
K 7.5
S 0.9
Mg 0.0
Ca 0.0
  • Rebateable
  • Blend of fertmark registered products
Ammo-Phos® / Hycrop 9-19-7

Product Description

​Ammo-Phos / Hycrop 9-19-7 is a high analysis, free-flowing NPK fertiliser, made from blending MAP with Potassium Chloride at a 85:15 ratio. A blend of brown MAP granules and either grey, white, pink or red potassium chloride chips, depending on the source.

Why Use Ammo-Phos® / Hycrop 9-19-7

  • ​For drilling or banding close to seed, where a high phosphate supply is required
  • Less risk of seed burning compared to DAP due to virtually no free ammonia being released
  • MAP based products are superior on alkaline soils compared to DAP

Caution When Mixing

Although Ammo-Phos / Hycrop 9-19-7 generally mixes well with other products, it is not compatible with the following:

Superphosphate and Magnesium Oxide

Ammo-Phos / Hycrop 9-19-7 can be compatible with the following under certain circumstances:

Dry Lime and Sulphur Super 30

Segregation may occur when mixed with product with differences of particle size.

Flexi-N (magnesium coated Urea) can be used as a substitute when mixing with Superphosphate based products.

 

Refer to the compatibility spreadsheet. 

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Phone

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0800 100 123

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Product Sizes available

  • Bulk
  • 20 kg
  • Bulk bags

Delivery Options

  • Pickup

Compatibility

Important Information

  • BENEFITS

    For drilling or banding close to seed, where a high phosphate supply is required

    Less risk of seed burning compared to DAP due to virtually no free ammonia being released

    MAP based products are superior on alkaline soils compared to DAP

     
    Ammo-Phos / Hycrop 9-19-7 is safer to use than DAP-based fertilisers, due to less risk of seed burn.  This is because of the MAP releasing virtually no free ammonia, which is toxic to seedlings.  Used in place of Hycrop 8-15-15 where soil potassium levels are good.
     
    It is suitable for drilling or banding close to seed, where an equal amount of phosphate and potassium is required, as there is less risk of seed burning compared to DAP due to virtually no free ammonia being released, which is toxic to seedlings.

     

  • USES

    Ammo-Phos / Hycrop 9-19-7 is used for pea and potato crops, as well as other vegetable crops.  It is suitable where there is a greater proportion requirement for phosphate over potassium.

  • APPLICATION

    Application rates will vary according to base soil fertility. For pea crops, about 150kg may be used. As a pea fertiliser it should also contain 400 grams of sodium molybdate per tonne of fertiliser, to aid nitrogen fixation by the rhizobia bacteria within the pea nodules. For potato crops, rates may range from 250 to 500 kg/ha, depending on base soil fertility, and yield potential.
     
    Application rates are typically 400kg/ha in Mid October.  Actual spreading rates will vary according to farm type, climate, productivity, soil type and crop type.  Soil testing and fertiliser plans are available to ensure you use the right product at the correct rate.  Call our Customer Centre for information.
     
    As with most solid fertilisers, Ammo-Phos / Hycrop 9-19-7 can be stored over a season as long as it is kept in a cool, dry, well ventilated area. 
     
    Ammo-Phos fertilisers contain monoammonium phosphate (MAP), which is manufactured by chemically reacting one molecule of ammonia with one molecule of phosphoric acid.  Diammonium phosphate (DAP) is made the same way, except that two molecules of ammonia are reacted with each molecule of phosphoric acid. As MAP has only half as much ammonia in proportion to the phosphate, there is virtually no release of free ammonia, and therefore can be sown closer to seed compared to DAP.
     
    MAP has been found to be superior on alkaline soils, due to (i) its acid nature (compared to DAP, which has a slight alkaline effect) and (ii) the greater volume of soil enriched with phosphorus.