Thursday, 26 April 2018 11:55

Smarter farming needs nutrient efficiency

Written by  Greg Campbell, chief executive of Ravensdown
Greg Campbell, Ravensdown Greg Campbell, Ravensdown

Tough questions are confronting everybody involved in food creation in New Zealand. 

How do we move from commodities like milk powder to niche products that consumers believe in and will pay more for? How do we provide proof to back up our food’s excellent ‘back story’? How do we manage the trade-off between environmental impacts and economic prosperity? 

The answer to all these questions is smarter farming: challenging all aspects of farming, knowing improvements are always possible and definitely needed. 

Three trends help set the context:

1. More elderly people 

In the time it takes you to read this, about 200 people arrived on Earth. NZ can only grow enough food to feed about 40 million out of seven billion people. 

So the question is, which 0.5% of the world’s population are we going to feed and how?

If the over-65s in China represented a country, by 2050 its population would be bigger than the UK, France and Germany combined. This could mean more demand for smaller pack sizes and added benefits, like lamb with extra Omega 3 for healthy joints. 

2. More city-dwellers 

More people will be living in cities, meaning there will be less space for storing and cooking food and more eating out. A lettuce from a vertical garden, insect protein shake or a 3D-printed lunch at your desk may provide daily nutrients, but perhaps NZ cheese on a pizza in a restaurant, milk in ta latte or ice cream in a hotel that will make some moments special. 

3. More middle class people 

Globally about 140 million people join the ranks of the middle class every year – mostly in Asia -- and protein is a bigger part of their family diet. Many will pay for food from a trusted source.

But to command a premium, you need proof. And that’s where technology helps: maps that show exactly how much fertiliser was placed where; robots that measure grass growth; laboratories that diagnose soil needs; algorithms that predict how much feed a farm will grow; coated fertilisers that can reduce greenhouse gas emissions; special aerial cameras that can assess soil nutrients remotely; and software that shows where best to tackle potential phosphate run-off and nitrate leaching. 

Ravensdown is working on these tools today so that future generations and all users of our precious natural resources can benefit. There’s no silver bullet but we are part of the solution.  

Leaving the land in better condition than we found it is no idle dream. But it is going to take a lot of work. Our environmental consultancy, which assists with mitigations and compliance issues, is the fastest growing part of our business. 

Our topdressing aircraft are being modified with computer-controlled doors so environmentally sensitive areas can be avoided. 

As a farmer-owned cooperative, our aim as nutrient efficiency specialists is to supply the necessary amount of nutrients that nourish the soils – no more, no less – and help minimise losses for the benefit of the farm and the environment. 

Smarter farming is the answer because it allows us all to adapt to looming disruption and ultimately benefits all NZers.

• Greg Campbell is chief executive of Ravensdown.

More like this

MSA triumph

OPINION: Methane Science Accord, a farmer-led organisation advocating for zero tax on ruminant methane, will be quietly celebrating its first foray into fertiliser co-operative governance.

Featured

Carrfields invests in new Ashburton R&D hub

The Ashburton-based Carrfields Group continues to show commitment to future growth and in the agricultural sector with its latest investment, the recently acquired 'Spring Farm' adjacent to State Highway 1, Winslow, just south of Ashburton.

Elite sheep dogs to go head-to-head at Ashburton A&P Show

A major feature of the Ashburton A&P Show, to be held on October 31 and November 1, will be the annual trans-Tasman Sheep Dog Trial test match, with the best heading dogs from both sides of the Tasman going head-to-head in two teams of four.

National

Machinery & Products

New pick-up for Reiter R10 merger

Building on experience gained during 10 years of making mergers/ windrowers, Austrian company Reiter has announced the secondgeneration pick-up on…

Krone EasyCut B1250 fold

In 2024, German manufacturer Krone introduced the F400 Fold, a 4m wide disc front mower, featuring end modules that hinge…

» Latest Print Issues Online

Milking It

Microplastics problem

OPINION: Microplastics are turning up just about everywhere in the global food supply, including in fish, cups of tea, and…

Job cuts

OPINION: At a time when dairy prices are at record highs, no one was expecting the world's second largest dairy…

» Connect with Dairy News

» eNewsletter

Subscribe to our weekly newsletter