Two new tools to re­ju­ve­nate pas­ture

Dairy News Australia - - PASTURES -

DUNCAN AG has in­tro­duced two new ma­chines from Ire­land that can be used to re­ju­ve­nate pas­ture and aer­ate their soils — the Al­strong Auc­tus over­seeder and Al­strong Aer­a­tor. Duncan Ag chief ex­ec­u­tive Craig McIsaac says the 3m-wide Al­strong Auc­tus pas­ture re­ju­ve­na­tor has a unique de­sign that al­lows it to carry out sev­eral oper­a­tions in one pass. It can be used in sprayed out pas­ture or cul­ti­vated ground. It has 10 in­di­vid­u­ally sprung lev­el­ling boards that scar­ify and scratch the sur­face to re­move dead grass, ex­pose the soil and cre­ate a shal­low seed bed. The lev­el­ling boards are fol­lowed by a heavy duty roller drum with teeth that break up sur­face pug­ging and al­low air and wa­ter to en­ter the sur­face layer of the soil. An air seeder broad­casts the seed be­hind the roller us­ing splash plates. Be­hind the seed­ing zone the Auc­tus can be spec­i­fied with grass har­row fin­ger tines or heavy duty pris­matic rings that set the seed in the soil. A shield over the roller stops soil from the rollers get­ting into the seed­ing area. The Auc­tus has a strong struc­tural steel frame and weighs 4.5 tonne, which can be in­creased to 5.2 tonne with wa­ter bal­last. It is a trailed ma­chine that fol­lows un­even con­tours and the 15 mm blades on the roller drum are made of hard­ened steel. The Auc­tus comes stan­dard with a French- made De­limbe air seeder or Duncan Ag can fit it with an APV seed­ing unit. Al­strong Aer­a­tors are also heavy duty ma­chines. They are based on a large drum with 15 cm blades that can break up soil pans and shat­ter the soil struc­ture to a depth of 30 cm when used in dry con­di­tions at the cor­rect speed. In pas­ture it does its job with­out dis­rupt­ing the graz­ing sys­tem. The blades are set al­most per­pen­dic­u­lar to the di­rec­tion of travel but at a slight an­gle, which adds a twist­ing mo­tion that helps break soil pans. The weight of the roller is con­cen­trated on each blade as it en­ters the soil, and the fast work­ing speeds (up to 20 km/hour) also help shock and frac­ture the soil. The aer­a­tors come in three dif­fer­ent ver­sions: trailed mod­els are 2.5 m wide or 3 m wide and the three point link­age model is 3 m wide. The 3 m mod­els weigh 4 tonnes dry and 6 tonnes with wa­ter bal­last while the 2.5 m model weighs 3.5 tonnes dry and 5.5 tonnes with wa­ter bal­last. Tel. (03) 9314 9666

The Al­strong aer­a­tor has a drum with blades that can break up soil pans to a depth of 30cm.

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