AMS / D+S

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AMS / D+S

The best SULPHUR fertiliser - soil applied and immediately available.

AMS = AMMONIA SULPHATE

  • Supplied, delivered or spread.

  • Accuracy in application rate computer controlled spreader, slow or fast forward speed, the spreader applies the same rate per head.

  • Delivered bulk to your farm in either 27 tonne bulk road vehicle or via our 14 tonne tipping trailer.

  • Custom rates to suit your needs set the rate per hectare and carry on until the job s complete.

Specification (typical)

  • Nitrogen 21% Ammoniacal Nitrogen 21%

  • Sulphur 24% As Sulphur Trioxide (SO3) 60%

  • Moisture 0.2%

  • Properties free flowing crystal, mean value 0.2-2.00mm 96-100%

Advantages

  • Supplies both Nitrogen and Sulphur.

  • All the Nitrogen and Sulphur are fully water-soluble.

  • The preferred nitrogen source in early Spring reduces risk of leaching and denitrification.

  • Substitute for Ammonium Nitrate at 1.5 bags of AMS to 1 bag Ammonium Nitrate. Just one bag/acre supplies all the Sulphur needs of a crop

  • Spread using our pneumatic air spreader

Nitrogen

Sulphur
The Nitrogen in AMS is all in the Ammonium form. Once applied to the soil this Ammonium-N will be used by the crop or converted to Nitrate-N which is also taken up.

Under most circumstances the effectiveness of AMS as a Nitrogen source is same as Ammonium Nitrate, AMS can be more effective than Ammonium Nitrate when soil is cool and wet in early Spring. Under these conditions, Nitrate-N can be lost by leaching or conversion to Nitrogen gas. The same conditions prevent or slow down the conversion of Ammonium-N in AMS (which is not lost but can be taken up by crops.) to Nitrate-N. In these circumstances therefore, AMS is the preferable Nitrogen source.		 Sulphur is an essential nutrient for all crops - the uptake of Sulphur in crops is about the same as Phosphate.
Although the soil can supply some Sulphur - typically 3-5 units a year - the main source of Sulphur for crops has been atmospheric pollution. Recent improvements in pollution control and changes in type of fuels used have greatly reduced this source of Sulphur. Yield responses to applied Sulphur are now widespread and large, and can be found almost everywhere in the UK outside the industrial midlands.

 

Sulphur is taken up by the roots of plants

Sulphur sprays therefore are only effective as Sulphur sources once the Sulphur has been washed off the leaves into the soil. The Sulphur in AMS is applied directly to the soil and is immediately soluble and available to the crop. AMS is simply the best fertiliser for applying Sulphur to crops.

Application Recommendations

AMS has long been used as nitrogen fertiliser, it is suitable as a top dressing for grassland and all arable crops and can be substituted for Ammonium Nitrate on a unit of N basis. BECAUSE AMS contains 21% N, use 1.5 bags AMS instead of 1 bag of Ammonium Nitrate. This simple rule covers the use of AMS in almost all circumstances. Two exceptions are in oilseed rape where AMS should only be used only where a Sulphur deficiency is expected - too much Sulphur can increase glucosinolate levels - and on grassland where copper deficiency occurs - which can be increased by excessive sulphur.