Cropmaster 20

Important Information

• BENEFITS

  Provide nitrogen (19.3%), phosphate (10%) & sulphur (12.5%) for field crops, greenfeed brassicas, sheep, beef and dairy pasture

  A cost effective product providing readily available nitrogen in the ammonium form, with phosphate & sulphur similar to that in Superphosphate

  Commonly used in cropping situations where potassium is not required

  Cropmaster 20 is cost effective, providing readily available nitrogen, phosphate and sulphate with good spreading and flow characteristics. Because all Cropmaster products contain nitrogen, correct calibration of application equipment is important.

  Cropmaster products are blends - they are made up of separate granules of each different nutrient. In compound fertilisers like the Nitrophoska Products range each granule contains all the different nutrients. For this reason blended fertilisers are usually a lot cheaper than compound products.

  As long as the granules in the blend are of a similar size (as they are in the Cropmaster range) the is usually little difference in the performance of a compound compared to a blend. However, in some intensive production situations (e.g horticulture) small differences can be important and it may more beneficial to use a compound.​

• USES

  Cropmaster 20 is a cost effective fertiliser providing readily available nitrogen in the ammonium form, while the phosphate and sulphate content is similar to that found in Superphosphate. Cropmaster 20 was originally designed for spring cereal cropping. However, it has a range of other uses such as greenfeed brassicas, maize, grass re-establishment, and pasture for hay/silage. Often used in cropping situations where potassium is not required.
  
  The high sulphur levels in forage brassica crops obtained from Cropmaster 20 may result in animal health problems. If a Cropmaster fertiliser is required for brassica production, choose one of the low sulphur products, e.g. Cropmaster DAP, 9, 11, 13, or 18.

• APPLICATION

  Cropmaster 20 flows faster through a drill or spreader than super based products. It is important to calibrate your equipment.  As Cropmaster 20 contains ammonium sulphate, it is important to ensure rates are not too high for the crop with which it is to be used.  To minimise the risk of seed germination injury application rates with seed need to be watched (see below).

  
  As with most solid fertilisers, Cropmaster 20 can be stored over a season as long as it is kept in a cool, dry, well ventilated area. Store bags in a dry place ensuring they are tightly sealed.

  
  Also, clean drills and spreaders after use to avoid corrosion.

• ARABLE

  Spring cereal sowing 180-375kg/ha, Autumn grass seed 125-200kg/ha, greenfeed brassicas 150-250kg/ha, sowing new grass 100-180kg/ha if drilled.  Where more than 200 kg/ha being applied, the balance should be broadcast.  Clover seeds are extra sensitive to contact with Cropmaster 20.  If direct drilling, lower the fertiliser rates to <90 and <125kg DAP/ha for clover and cereals, respectively.

• PASTORAL

  125-250kg/ha to boost pasture growth, 150-300kg/ha on hay/silage paddocks at closing, provided soil potassium levels are adequate.  If soil potassium levels are low use Cropmaster 15.

  
  Actual spreading rates will vary according to farm type, climate, productivity and soil 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.

• FORESTRY

  100-125 grams per tree at planting (applied in a spade slot about 15cm away from the tree), sidedressing (e.g. shelterbelts) if required.