“The Neudorrfe wet process pellets spread to 24m with the StocksAG Fan Jet Pro 65 but, with no achievable overlap registered, it would be better to reduce working width or use the De Sangosse pellet which was able to spread a further 2m,” he says.
“This would safeguard against wind speed changes and achieve a more consistent application.”
The lentil-shaped pellet saw mixed results both in maximum working width and consistency left and right, says Mr Carpenter.
“It wasn’t able to spread quite as far as the De Sangosse TDS wet-processed or Neudorrfe wet-processed pellets in either the StocksAG Fan Jet Duo or StocksAG Fan Jet Pro 65.
“The Bullock Tillage applicator appeared to favour the physical characteristics of the lentil pellet, achieving more consistent left to right spread and better spreading distances.
“Also, one thing to note, if this pellet is propelled from the machine on its flat profile it flies like a discus. However, the ones turning in the air and catching
face on into the wind did not fare so well.
“This became more evident in the high speed camera tests where you could see each individual pellet leaving the disc from the spreader.
“This may also explain the variation on the left and right percentage difference results [12% for StocksAG Fan Jet Pro 65].”
The dry processed pellets’ spreading capability was improved to 30m by using the StocksAG Fan Jet Duo machine compared with the StocksAG Fan Jet Pro 65 (18m), matching the lentil-shaped pellet and just 2m behind the wet-processed alternatives.
The lowest variation at 12m and up to the achieved maximum distance was recorded by the De Sangosse pellet, says Mr Carpenter.
“The key message is to match your pellet profile to the applicator you are using and adjust expectations accordingly.”