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 MAP is used for pea fertiliser mixes, potatoes and in some regions forage brassica crops.  It is suitable where a high phosphate supply is required and soil potassium levels are good.  It can also be used in base fertiliser mixes formulated for crops such as cereals and maize.

 

Application rates will vary, according to base soil fertility. For forage brassica crops, rates range around 150-250kg/ha.
 

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 MAP 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.