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Treating effluent as a resource MARK DANIEL

FORWARD THINKING dairy farmers are

realising the fertiliser value of effluent, treating it as a resource rather than something to be disposed of. Pichon slurry tankers, distributed by Norwood in New Zealand since 2013, enable liquid effluent transport and, more importantly, an effective method of application to make the most of its nutrient value Pichon tankers are

constructed using an integrated frame, with the tank forming part of the chassis, making for a lighter machine with a lower centre of gravity. The tank is galvanised inside and out, while the BP2 auto filler arm can be used on either side of the machine with the tanker suction line connected to the filling cone positioned adjacent to either a pit or tank. Tank capacities are 2600 to 30,000L, with hydraulic sequenced controls for filling and spreading phases. There is a choice of

discharge systems. The traditional spreader plate and nozzle is the most common and cost-effective, or operators looking for better utilisation can choose a hydraulically actuated dribble bar mounted on the rear

of the tanker, offering spreading widths to 28m. For utilisation that ensures optimal plant take-up and minimal evaporation a disc injection system can be specified to deliver effluent directly into the ground.

Compact driving lamp A COMPACT driving lamp for SUV, 4WD or truck

-- the Narva Ultima 180 LED model – is new in New Zealand. “The Ultima 180 meets the trend towards more compact driving lamps… but drivers still want top performance. The Ultima 180 delivers both,” says Tim Paterson, Griffiths Equipment Ltd. The lamps’ hybrid beam pattern makes them ideal for off-road driving and on-road applications because they produce a white light output (5700°K) that closely resembles natural light, so minimising night-time fatigue. The lamps produce 22,000 raw lumens, said to be capable of shining a penetrating light down a road or bush track up to 600 metres at 1 Lux (as a pair). Each has 25 x 5W (165W) XP-G2 Cree LEDs and highly polished aluminium metalised reflectors with precisely scalloped parabolas for control and performance. Other benefits of the new lamps include an LED front position light to improve driving visibility in poor daylight conditions, for improved safety. They have a tough, die-cast aluminium housing and an ‘active thermal management system’ allowing the lights to run harder for longer, a Nitto breather vent and integrated DT connector. The lamps are sealed against water and dust to IP66 and IP67 standards and have a virtually unbreakable polycarbonate lens and lens protector. Installation kits have four interchangeable coloured trim pieces in blue, black, yellow and red, allowing buyers to customise the appearance of the light on their vehicle.


Gypsum application is a standard practice worldwide for addressing the build up of sodium in soils, including soils receiving waste waters.

Gypsum is one of those rare materials that performs in all categories of soil treatment: an amendment, conditioner and fertiliser.

How Does Gypsum Work?

It is useful in the transition period in dairy cows 2 – 4 weeks pre & post calving, and can be used as an anionic salt to counteract the effects that high potassium & sodium concentrations have on increasing hypocalcemia.

Gypsum is hydrated calcium sulphate. Calcium from gypsum replaces sodium in the soil. The sulphate allows the sodium to be effectively leached out of the soil. The soil then has more ability to flocculate and form stable aggregates to improve drainage and soil quality.

Gypsum, a readily available form of calcium, is 100 times more soluble than lime and is more suitable for the digestive system during this period.

Gypsum in fertilising Soil tests throughout New Zealand shows sulphur deficiency is wide spread. Although often overlooked, sulphur is needed in at least equal quantities to phosphorus. Many responses in crops are sulphur due to the sulphate radical (SO4‑‑). • Readily dissociates into free calcium ions (Ca++) and sulphate ions (SO4‑‑), major elements in plant nutrition • Has an approximately neutral pH and can be used in heavy applications without causing undue alkalinity in soils

Gypsum in water savings • Promotes water infiltration, retention and conservation • Allows water to penetrate the soil without forming puddles or water logging • Conserves water by stretching intervals between irrigations • Tests show that farmland treated with gypsum requires up to 33% less water than soils without recent gypsum application

Na+ Na+ Ca++ leached CaSO4 + Soil Cation Exchange  Soil Cation Exchange + Na2SO4

Gypsum in soil conditioning • Breaks up soils compacted by sodium and clay, and compounded by farm animals and machinery • Reduces cracking and compaction following irrigation and retards soil crusting • Allows soil to dry more quickly after rain or irrigation so that it may be worked sooner • Decreases energy requirements for tillage • Binds organic matter to soil and checks soil erosion • Enhances friendly bacterial action and discourages plant diseases related to poor soil aeration • Conditioned soil allows for deeper, healthier root development and water penetration

Gypsum in amendment • Displaces sodium binding clay soils • Reduces high soil aluminium levels • Suppresses the soil acidification effects of growing crops and the prolonged use of acidifying fertilisers

For more about Natural Gypsum and soil stabilisation visit 00527 - Gyspum - DairyNews June 02.indd 1

20/06/18 6:21 PM

Profile for Rural News Group

Dairy News 11 June 2019  

Dairy News 11 June 2019

Dairy News 11 June 2019  

Dairy News 11 June 2019