New model predicts pasture response to nitrogen

New-model-predicts-pasture-response-to-nitrogen

More accurately predict pasture responses to nitrogen with N-Guru™

August 1, 2014

New model predicts pasture response to nitrogen

A new model that can more accurately predict pasture responses to nitrogen is now available for farmers throughout the country.

The model is the first product resulting from farm nutrient co-operative Ballance Agri-Nutrient’s $19.5 million, seven year Clearview Innovations Primary Growth Partnership programme, jointly funded by the Ministry for Primary Industries.

Backed by sound science and extensive research, N-Guru™ is decision support software, designed in partnership with AgResearch, to improve the efficiency of nitrogen use on New Zealand pastoral farms.

A soil ‘total N’ test is carried out as part of routine soil testing. Where total nitrogen varies sufficiently across the farm, the model can be used to determine variable nitrogen use instead of applying the same amount of nitrogen across the whole farm.

The software is already available for farmers, with Ballance sales consultants now offering N-Guru as part of a fertiliser recommendation to help farmers make better decisions about nitrogen use.

The co-operative’s Science Manager, Aaron Stafford, says they’ve piloted the software with farmers, and they love it.

“It’s a no-brainer, because with N-Guru we can now more accurately predict the relative pasture response and confidently tailor our advice accordingly.

“We are always looking at ways to support farmers in increasing production while making the best use of their fertiliser budget and reducing the impact on the environment.  This is another step forward in our ability to give expert advice, adapted to each part of the farm and firmly based on knowledge gathered from a large number of pasture response trials carried out nationally.”

N-Guru offers a valuable model to assess the benefits of varying the nitrogen application across the farm rather than using a single uniform rate, which enables farmers to target nitrogen applications to pastures that will produce the best response.

“By improving nutrient use efficiency through the strategic and targeted use of nitrogen the risk of associated nitrogen loss is reduced, and the cost benefit of fertiliser-nitrogen application increases.”

Development of the N-Guru software is ongoing, based on feedback from farmers.

N-Guru is expected to make a significant contribution to the Clearview Innovations PGP programme target of a 50% improvement in nitrogen use efficiency on New Zealand farms. 

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