independent

Saturday 19 April 2014

Combination one-pass to save time and money

Unique Tillerstar cultivator-separator system is to be available in Ireland in 2013 after its successful commercial season on trial on British vegetable farms

A unique implement that combines the work of a bed tiller and stone/clod separator in one machine is now available to growers throughout Ireland after a successful first commercial season on farms in Britain.

In contrast to conventional, multi-implement, multi-pass systems, the Tillerstar, manufactured by George Moate Ltd, cultivates and separates in one pass, working directly on stubbles or ploughed ground.

"We think it can save a grower thousands in capital expenditure and the running costs associated with fuel and labour," says George Moate Ltd managing director Richard Pratt.

"It will also reduce a grower's carbon footprint and there are benefits for subsequent crops in the way separated stone is deposited beneath rather than to one side of the bed."

First examples of the Tillerstar have been used by farmers across the water growing potatoes, carrots and onions. The implement is also suitable for other root crops grown in beds, as well as salads and bulbs.

"We took a cautious approach for our first year, keeping machines close to home so we could be sure to provide service and parts back-up," says Mr Pratt.

"Now, we're happy to supply Tillerstar cultivator-separators and our other potato equipment products a bit further afield."

The first order has now come in from a grower in Northern Ireland. Father and son team Robin and Ivan McKee grow salad and main crop potatoes, as well as carrots and parsnips overlooking Strangford Lough at Comber near Newtownards, Co Down.

The pair were leading lights in the successful campaign to get Protected Geographical Indication status from the EU in 2012, so that only potatoes lifted from fields around the Co Down village can be called New Season Comber Potatoes or Comber Earlies.

They were attracted to the single-bed Tillerstar they have on order by the prospect of a big reduction in bed preparation costs, which results from cutting the number of bed preparation operations from three down to one.

"We're aiming to be more efficient and taking two tractors, two drivers and two machines out of the bed-making process is a great way to be more efficient," says Ivan McKee.

"Normally, we use a deep ridger to pull up the beds, a tiller to cultivate them, and then a de-stoner; with the Tillerstar we'll do the job in one pass straight on to ploughed ground.

"I was also intrigued by the concept of leaving the stone across the full width of the bed rather than removing it into an eight-inch strip," he adds.

"Placing the stone beneath the bed should help with drainage in the potatoes and subsequent crops."

How does the Tillerstar work?

First, a bladed rotor cultivates with an upward cutting action that throws soil and stones backwards on to four flexible-finger star rollers positioned close behind. These convey any large stone or clod forwards so they drop into the void behind the rotor. As the machine continues to work, loose soil passing between the sieving rollers covers the stone and clod, leaving a clean bed up to 40cm (16in) deep ready for planting.

"Spacers on the easy-change shafts determine the size of material separated by the rollers and the hydraulic drive allows on-the-move speed adjustment for fine-tuning," adds Mr Pratt.

"The loose soil is moulded into a well-shaped bed by one of several different adjustable forming hoods we've developed. The hoods leave full-width beds for planting seed potatoes, onion sets, carrots, leeks, beetroot, bulbs – just about any crop you can think of growing in raised beds. We also have applicator mounting kits for pre-planting fertiliser and chemical treatments."

Power and pricing

The Tillerstar range comprises single-, double- and triple-bed configurations, each with a choice of 1.82m (72in) and 2m (78in) standard bed widths. Special sizes are available to order.

Daily output is typically 10ac per bed. A single-bed model needs at least 110hp at the pto but is equipped with a multi-speed gearbox rated at 240hp, while the twin-bed version, which needs 170hp minimum, has a 330hp gearbox to make use of higher horsepower tractors.

Hydraulic folding is standard on the twin-bed machine and also on the largest Tillerstar – the triple-bed needs at least 250hp and also comes as standard with a 330hp gearbox. Auto reset safety clutches are fitted throughout for maximum protection with minimum downtime.

List prices range from €33,200 for a single-bed Tillerstar to a triple-bed at €94,700.

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