farmers in overall slurry management and making maximum
use of the nutrients available. This has been fuelled by:
the most from slurry on farm and reducing the use of
slurry correctly at the best times and using the best
and liquids separate, leaving the liquids at the bottom
and dryer material at the top. It is paramount to mix these
properly prior to application to maximise the nutrient
value of the slurry and increase accuracy of spreading
over the application width. Abbey Machinery's Tornado
3000, 4000 and 5000 high-pressure agitation pumps
and Contractor Rapid Pump carry out this mixing rapidly
and e ciently. When agitating slurry, it is important to add
water back in to improve mixing. This also aids ammonia
uptake when spread, although, the added water does
dilute the P and K content. When agitating slurry, it is
paramount to take every precaution to avoid the potential
dangerous gases involved when mixing slurry.
It is becoming increasingly more popular to spread slurry
through applicators (Abbey Machinery Tri-App, Trailing
Shoe or Shallow Injector). Some of the key benefits of
using applicators are that they: deliver the nutrients
directly to the root zone; reduce ammonia emissions by
up to 90 per cent; preserve the soil structure; reduce
odour emissions; and reduce soiling of grass which
reduces rotation length when grazing. The main criteria
for determining the optimum applicator required include:
soil type clay, loam or stony; crops grass or cereal;
landscape level or hilly; slurry tanker standard, recess
or tandem; tractor horsepower (HP) available; legislation
in relation to application methods, timings of applications,
road safety transportation etc.
takes one to five years to repair depending on the severity
of compaction. Lower subsoil compaction can take from
five to 10 years to recover. For these reasons, farmers are
getting more conscious of soil compaction and are looking
for ways to minimise it. Wheel choice has a major bearing
on potential compaction of both top- and sub-soil. In
the potential for compaction. Wheels with larger radii
(longer rolling circumferences) and greater width all have
the potential to reduce the impact of the machines on the
soil. Bigger slurry tankers and higher horse power tractors
require the correct wheel specification to minimise their
impact on the ground.
from one end to the other. It works closely with customers
listening to their needs to develop machines with the required
specifications to suit their particular soils, tractor HP, field-
aspect and working conditions. With more than 35 high-
specification slurry tanker models in the Abbey Machinery
range from 900 gallons to 6,000 gallons both farmers and
contractors have lots of choice.
Typically 1,000 gallons are worth 25 (85 per cent of this
is from P & K values).
complement fertiliser on farm.
accordance with the crop needs, and applied through an
Applicator that maximises the plant availability of N. It is
best applied under cool, moist, overcast conditions.
Almarai Farm in Saudi Arabia.