Court rejects Greenpeace's attempt to block green hydrogen project
An attempt by Greenpeace to block the consent of a green hydrogen project involving fertiliser co-operative Ballance has been dismissed by the Court of Appeal.
Million of dollars of nitrogen is vanishing into thin air, causing losses to farmers and to New Zealand in wasted imports, says fertiliser company Ballance Agri-Nutrients.
This conclusion arises from field trials done by Ballance to measure ammonia losses from standard urea and urea treated with a nitrogen stabiliser. These losses occur when the nitrogen in the urea volatilises into ammonia.
While farmers try to avoid the loss by applying urea when wet weather is forecast, research by Landcare Research and Ballance has shown that 5-10mm of rain is needed within eight hours of application to reduce ammonia loss, a finding consistent with research in New Zealand in the 1980s.
Ballance science manager Aaron Stafford says nitrogen loss through volatilisation is well-known, but the economic cost is not.
“Around 500,000 tonnes of urea is sold in New Zealand each year and if you use the rule of thumb that 10% of available nitrogen will be lost from volatilisation, that’s the equivalent of 23,000 tonnes of nitrogen not doing its job in the soil to generate a return for farmers.
“Urea fertiliser contains 46% nitrogen, so at $600/t for urea, this means $30 million of nitrogen is lost on average each year as ammonia.”
The losses are financial and environmental, with volatilised nitrogen re-deposited from the atmosphere, not necessarily on the farm from which the nitrogen was lost.
“Farmers have no ability to control where this volatilised nitrogen is re-deposited.
“It could end up in rivers, lakes or forests, which is less than ideal environmentally.”
Field trials in Waikato, Manawatu, Canterbury and Otago were done during two successive springs. They showed ammonia losses from urea of 11-23%, with an average of 15% -- again consistent with previous independent work.
Treating urea with Agrotain nitrogen stabiliser (SustaiN) reduced these losses by an average of 68%.
Stafford says the results are consistent with previous research which gave an average 45% reduction in ammonia losses with SustaiN urea over standard urea.
“The data also shows that volatilisation is not a summer-only phenomenon. It can happen at all temperatures.”
He says a product like SustaiN is sold at a premium over standard urea, but that premium is recovered in reduced nitrogen loss, better pasture response and reduced reliance on immediate rain to minimise volatilisation.
The co-op now offers SustaiN in place of urea in a wider range of mixes and blends, extending the benefits to applications which include other nutrients.
South Waikato farm manager Ben Purua’s amazing transformation from gang life to milking cows was rewarded with the Ahuwhenua Young Maori Farmer award last night.
Bankers have been making record profits in the last few years, but those aren’t the only records they’ve been breaking, says Federated Farmers vice president Richard McIntyre.
The 2023-24 season has been a roller coaster ride for Waikato dairy farmers, according to Federated Farmers dairy section chair, Mathew Zonderop.
Ministry for Primary Industries (MPI) director general Ray Smith says job cuts announced this morning will not impact the way the Ministry is organised or merge business units.
Scales Corporation is acquiring a number of orchard assets from Bostock Group.
Family and solidarity shone through at the 75 years of Ferdon sale in Otorohanga last month.
OPINION: Scientists claim to have found a new way to make a substitute for cow's milk that could have a…
OPINION: The Irish have come up with a novel way to measure cow belching, which is said to account for…