Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 

Smarter urea means farmers can buy less nitrogen

27 February 2019


By Greg Costello, Fertiliser Product Manager Ravensdown

Choosing products coated with a special urease inhibitor is one way for farmers to reduce the total amount of purchased nitrogen needed on farm.

Compared to uncoated urea, these coatings reduce the amount of nitrogen lost to the atmosphere by 50% especially in hot and dry conditions. While this ‘smarter urea’ is 7% more expensive than uncoated urea, using the coated version means that less nitrogen needs to be purchased to achieve the same pasture response.

Combining this with other good farming practices reduces the total tonnes of N needing to be purchased per farm which helps the farmers’ bottom line and reduce risks of environmental impacts.

Nitrogen use efficiency is a good way that farmers demonstrate responsible nutrient stewardship. There are three main ways nitrogen investment can end up in thin air. So who are the culprits?

1 Prevailing dryness

Bone dry soil with a dry wind mean the urea granule will sit on the surface and the enzymes in the soil get busy breaking it down into ammonia which leads to the N-loss. This effect will be much worse if there is no plant cover.

2 No rain forecast

Short of performing a rain dance, there is little certainty about the onset of summer rain. But one certainty is that urea needs 10mm of rain or irrigation within eight hours of it being applied or more N ends up in the air. With dry conditions set to continue as an El Nino pattern threatens, this becomes a very real but invisible cost.

3 Untreated urea

In conditions like those above, an uncoated urea granule will quickly begin losing its N to the air. A coated urea product like N-Protect can help halve losses of N through ammonia gas emission. And in dry conditions, this can be higher than the average 18%. This all has an impact on eventual nitrous oxide emissions.

At Ravensdown, we are seeing farmers tackle their greenhouse gas emissions by considering these three factors and choosing coated urea. Our field-based team are encouraging shareholders to think about their utilisation rates, nitrogen use efficiency and environmental mitigations. After all, a co-operative should be helping its owners apply the right amount rather than the largest amount.

ENDS

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

The Narrow Divide: New Poll Shows Tight Political Race For SME Votes

In a major turnaround following nearly a decade of MYOB election polls, Labour is currently the preferred political party of New Zealand’s SMEs, with 38% of SME owners and decision makers intending to vote red in the upcoming General Election, ... More>>

Reserve Bank: Further Easing In Monetary Policy Delivered

Tēnā koutou katoa, welcome all. The Monetary Policy Committee agreed to expand the Large Scale Asset Purchase (LSAP) programme up to $100 billion so as to further lower retail interest rates in order to achieve its remit. The eligible assets remain ... More>>

Retail: Post-Lockdown Retail Card Spending Picks Up

The rise in retail card spending was boosted by sales of furniture, hardware, and appliances, Stats NZ said today. “For a third consecutive month, card spending on the long-lasting goods (durables) remained at higher levels than last year, after ... More>>


Contact: Business Drops, New Generation On Hold

New Zealand’s second-largest energy company Contact Energy (‘Contact’) released its full year financial results for the 12 months to 30 June 2020 (‘FY20’) this morning. More>>

Mining: OceanaGold Announces Receipt Of WKP Mining Permit

MELBOURNE, Australia, Aug. 6, 2020 /CNW/ - OceanaGold Corporation (TSX: OGC) (ASX: OGC) (the 'Company') is pleased to announce it has received the mining permit for Wharekirauponga ('WKP') on the North Island of New Zealand. ... More>>

ALSO:

Economy: COVID-19 Lockdown Has Widespread Effects On Labour Market

In the June 2020 quarter, the seasonally adjusted unemployment rate fell to 4.0 percent, down from 4.2 percent last quarter, while underutilisation rose, Stats NZ said today. More>>

ALSO:

NZ Post: New Research By NZ Post Shows Online Shopping Grew 105% In Alert Level 3

New research by NZ Post into how the COVID-19 response has impacted the way Kiwis shop online, shows online shopping increased 105%* when the country moved into Alert Level 3, and may have changed the way Kiwis shop permanently. Online spend peaked ... More>>

ALSO:

Antarctica NZ: Ice-Olation

Antarctica New Zealand is gearing up for a much reduced season on the ice this year and a very different deployment to normal! Before they head to one of the remotest places on the planet, all personnel flying south with the New Zealand programme will ... More>>

ALSO:

QV Valuations: July House Price Index Illustrates Market Resilience

According to the July 2020 QV House Price Index (HPI) results out today , property values recorded a marginal increase, up 0.2% over the month. This is somewhat of a turnaround from June, after the national index edged 0.2% lower. More>>

ALSO:

Property: Queenstown Rents Experience Biggest Drop In Seven Years

Rental prices in the Queenstown-Lakes district saw the biggest annual percentage drop in seven years after falling 28 per cent on June last year, according to the latest Trade Me Rental Price Index. Trade Me Property spokesperson Aaron Clancy said ... More>>

Seismology: The Quiet Earth

As many daily activities came to a halt during lockdown, the Earth itself became quiet, probably quieter than it has been since humans developed the technology to listen in. Seismologists have analysed datasets from more than 300 international ... More>>

RNZ: James Shaw Says Kiwibank, Not Ministers Should Decide On Investors

Climate Change Minister James Shaw says Kiwibank's decision to stop doing business with companies dealing in fossil fuels is the right one. More>>

ALSO:

FMA: Kiwis Confident Financial Markets Will Recover From COVID-19, Plan To Increase Investments

Despite the majority (60%) of investors experiencing losses as a result of COVID-19, the outlook on investing remains positive, according to a Financial Markets Authority (FMA) survey. Most Kiwis (71%) were optimistic that the pandemic will pass eventually ... More>>

FIRST Union: Warehouse Using Covid For Cover As Extensive Restructure Makes Everyone Worse Off

(FIRST Union comments on The Warehouse consultation and proposed restructure) 'Unfortunately the Warehouse have done the disappointing thing and used Covid-19 to justify a bunch of operational business decisions that will leave hundreds of workers without jobs ... More>>

ALSO: