Category Archives: Precision Agriculture

Less $$ than a flat white a fortnight

A message to our members and friends

LandWISE runs on a voluntary membership basis with an annual subscription of just $100 for the current year. Subscriptions are now due and our Financial Members will be getting their invoices sent out shortly.

If you are already one of our Financial Members, Thank You! Can you please help us again by recommending us to a friend?

We haven’t changed our subs for years, but are starting to review that. What would be best, is if more of our followers chose to join!

Not a Member? JOIN HERE!

If you’re getting and valuing our newsletters, downloading and listening to our podcasts, accessing the resources on our website or the FertSpread tools etc. please think about giving us a hand.  It really will only cost you about half a cup of coffee a week, but it will make a big difference to us.

How does LandWISE fund its activities?

Our overheads are kept rock-bottom. The MicroFarm, our offices and equipment are provided as an in-kind service by Page Bloomer Associates. Our Board is voluntary, and we meet mostly by email and video conferencing. But we do need to pay accountants and insurance and run websites and the other things every organisation has to do.

Our major activities are funded on a project by project basis. That means we need a lot of support from co-funders so we can access (hopefully) various reasearch and extension grants such as MPI’s Sustainable Food and Fibre Futures fund (SFFF). Our Conference too (as podcasts in 2020!) also relies on a number of loyal sponsors and the delegate fees we collect.

Merf explaining cover crops and catch crops at the LandWISE AGM
Merf explaining cover crops and catch crops at the LandWISE AGM

All these things cost a bundle. If we can get more members, we can increase the amount of work we can self-fund and provide more member services. 

Please consider becoming a Financial Member today. Click the link, fill it in and we’ll flick you an invoice.  (and we’ll cover the cost of our own coffees!)

Agricultural Robotics: part of the new deal?

A silver lining on the Covid-Cloud is online conferences. Here’s one few of us in this part of the world would get to, but now it’s an online event, attendance is just a click away!

Since 2016, the International Forum on Agriculturral Robotics FIRA has been must-attend event for professionals in the agricultural robotics sector. Initiated and organized in Toulouse by the French company Naio Technologies, FIRA is now presented by GOFAR – the association Global Organization for Agricultural Robotics, founded in 2019.

GOFAR is launching the virtual edition of its annual event, which runs from 8 to 10 December, 2020. FIRA 2020 will provide international participants with online live access to speakers, booths tours and interactions with exhibitors and other participants, and will thus become the social network for agricultural robotics.

This 3-day new format combines innovation and quality online experience for a sector that has a key role to play to address thcurrent environmental, economic and social issues. For those of us in another hemisphere, presentations wil be available to registrants to access as soon as they have been aired.

Registration: www.fira-agtech.com

More information here>

Naio OZ440 at LandWISE Conference

 

Strip-Till and Cover Crops Panel Discussion

The “Strip-Till and Cover Crops Panel” Panel Discussion was recorded in September following a series of earlier podcasts. Panellists included:

  • Hugh Ritchie (HB Farmer, Strip-tiller, LandWISE Honorary Member)
  • John Evans (Canterbury Farmer, Strip-tiller, LandWISE Chair)
  • Allister Holmes, (Technology R&D Manager, FAR)
  • Charles (Merf) Merfield (BHU, Independent Cover Crops and Tillage Researcher)

If you’re interested to hear the panel members’ individual podcasts, plus one from Simon Lochhead, Strip-till farmer in Canterbury, follow these links:

Down load the LandWISE Strip-Till guide here>

All Podcast Episodes here >

Subscribe to our newsletter to receive the latest news from LandWISE including future panel webcasts, and podcast episodes.

Podcast – 20 Years of Strip-Till

Listen to the Podcast Episode >

Hugh Ritchie is a founding farmer and life member of LandWISE. Hugh farms on Drumpeel Station a 2000ha mixed arable, process vegetable and lamb fattening operation.

Hugh joins us to talk about his experiences with Strip-Tillage. A type of minimum tillage system which he brought over from the U.S in 2000, as part of LandWISE’s first project addressing wind erosion of soil in Central Hawke’s Bay.

Memberships Open for 2020-2021

Calling all followers and friends of LandWISE, we invite you to become a financial member this year.

Your support is vital for LandWISE to continue doing what we do. We rely on farmer support to ensure the backing of new projects, discover new areas for research or technology adoption, and to fund field days, workshops and the development of practical resources. 

LandWISE Membership is a great way to support the mission of sustainable production in New Zealand, and as a member you’ll benefit from:

  • Results from on-farm trials
  • Projects focussed on real farmer and grower problems
  • Regional field days and workshops on a range of topics from conserving soil to nutrient management and novel fertiliser technology
  • A discounted registration at the 2021 LandWISE Conference
  • Subscription to our annual LandWISE News publication

Membership is open to all who are interested in primary production and share our values. We hope you’ll consider becoming a member, or forward this on to a non-member if you already are!

Sign up here >

Nutrient Budgeting made easy…

We’re pleased to announce the release of our Nutrient Budgeting Templates.  Designed to support vegetable growers to budget fertiliser use according to good management practice guidelines the A4 pdf templates rely on nutrient recommendations from Reid & Morton (2019). Crop yield predictions and soil fertility testing are used to determine the optimum rate of Nitrogen and Phosphorus to apply, based on the best trial data NZ has for 12 different vegetable crops.

The LandWISE Nutrient Budget Templates bring together this resource along with FAR’s Nitrate Quick Test Mass Balance tool which allows growers to enter soil nitrate levels using the Nitrate Quick Test. This test can provide growers with soil nitrate levels in less than an hour for about $1. FAR’s tool reliably converts nitrate concentrations (ppm) into kg N/ha.

Nutrient budgets are becoming a necessary process to document the movement of nutrients on and off-farm, and justify fertiliser applications. Nutrient budgets can be used to develop a fertiliser plan, where each paddock or management unit has a clear strategy to maintain, build or mine soil nutrient levels.

View or download the templates below:

Phosphorus Budget Template 02-20

Nitrogen Budget Template 02-20

The Nutrient Budget Templates have been developed as part of Future Proofing Vegetable Production, a three-year project funded by MPI’s Sustainable Farming Fund, Ballance, Horizons, Gisborne District Council, and Potatoes NZ.

We are keen to hear from those using the templates so please get in touch if you have any questions or feedback.

Digging Holes: An Intro to Soil Assessment at Leaderbrand

LandWISE visited Leaderbrand Gisborne earlier this week, where Nick Pollock, one of the Farm Production Managers there had invited us to hold a VSA, Fertiliser Equipment Calibration, and Quick N-Test Field Day. Nick ensured his tractor operators and crop managers were up to speed with good practice by encouraging them to take part in the day’s activities and share their experiences making day-to-day on-farm decisions regarding cultivation and fertiliser application.

Starting off the day with a fertiliser calibration, we were pleased to see the strong understanding of how to run a calibration test by their staff, and the use of practical charts to help drivers choose the right speed and revs for the field they’re working in and fertiliser product they’re applying.

Salad crops are a significant part of Leaderbrand’s production, and to accommodate this unique growing method, where planting densities are high, and crop maturity is reached in as little as 60 days, they have adopted new fertiliser application technologies which minimise waste. Calibration of these systems is especially critical to ensure uniformity of crop establishment during the short growing period and maximise the crop’s nutrient use efficiency. Using our calibration tool FertPlace, we were able to identify the application uniformity across the bed and calculate the application rate at a standard speed.

Visual Soil Assessment (VSA) – the process of assessing soil quality by eye and feel was developed by the soil scientist Graham Shepherd and has been around for a while (the first edition of the Visual Soil Assessment Field Guide was published in 2009).

Demonstrating this process in a nearby paddock, where Leaderbrand has been following controlled traffic systems for the past 5 years, showed some surprising results. The soil structure of the cultivated bed had significantly better porosity, stability of aggregates, and drainage characteristics when compared with the compacted “road” soil in the wheel tracks. The side-by-side comparison of the soil from the cultivated beds and a long term pasture soil from under a fence line in the same paddock showed that even a heavy Makauri Clay Loam soil can score well on the VSA when treated with care as Leaderbrand have committed to by adopting Controlled Traffic Farming.

Following this first look at soil characteristics under cropping, we visited a recently disestablished vineyard that is being leased by Leaderbrand for cropping in-between developments. The short break in production had allowed them to dig an impressive viewing hole that demonstrated the variability in soil structure, texture, and organic matter at different depths in the profile. As seen in the figure below, the Waipaoa Silt Loam profile has a buried topsoil (Matawhero Silt Loam) at 40cm depth, remaining from before the 1948 flood of the Waipaoa River.

To finish off the field day, a demonstration of soil sampling and using Quick-Nitrate Test Strips was completed for a Leaderbrand lettuce crop.

As part of FPVP, LandWISE is helping growers to adopt this tool as an in-field method to determine the soil supply of N during the growing season. More information about this test process and the proof of concept research, led by Plant and Food Scientist Matt Norris can be found here.

For those already using Nitrate Test Strips, the Quick Test Nitrate Mass Balance Tool which converts the Nitrate Test Strip results from ppm into a kg/ha Nitrate-N value can be found on the FAR website.

Our acknowledgement and thanks go to Leaderbrand Gisborne for supplying us with equipment to test, and setting aside their time to take part. We also gratefully acknowledge MPI’s Sustainable Farming Fund, and the co-funders of the Future Proofing Vegetable Production project for making field days such as this one possible.

 

Orchard Drainage Field Day – Hawke’s Bay 15th August

On Thursday 15th August, we visited Evenden and Red Barn orchards to view the Smart Tools for Orchard Drainage trial blocks.

A few months have now passed since the various drainage treatments were implemented in the trial areas – the soil has settled and the grass is beginning to establish in the interrows.

A group of growers arrived to see the different treatments which we will continue to track to monitor their effectiveness and longevity. One of the main tools we are using is the RutMeter we developed for the project.

The RutMeter automatically measures rut depth and records the location using SBAS GPS for accuracy

After several months, regrassing, pruning and mulching, inter-row 1-2 is looking pretty good. By minimising soil movement during levelling, there is only a small rise/drop between the inter-row and the undertree row ground level.

The inter-row between rows 1 and 2 several months after levelling. been regrassed, then after pruning the branches were mulched. A few weeks for regrowth and the surface should be looking green again

Very good discussion among the growers covered the different treatments, how they affected orchard operations (especially use of hydraladas) and what future remediation they thought would be needed.

Orchard managers are happy with results to date. They think there may need to be work later after wet periods, but the foundation for better surface drainage in in place.

Many thanks to T&G and Bostocks for hosting the trials and the field walks. And project funders, MPIU SFF and NZ Apples and Pears Inc.

Help Wanted

We’re not quite sure what to call the job: science manager, extensionist, project manager, consultant? We know it offers diverse activities and needs excellent communication skills and practical knowledge of horticulture and technology.

We are looking for someone to help identify and lead research projects and extension activities across a variety of issues and regions. For the right person, this is a role with considerable potential to grow.

This will be a Page Bloomer Associates appointment. They provide our science, management and support services while having addditional private consultancy activities.  Working closely together, we know they share our passion for sustainable land and water management.

Since the dawn of the new millennium we’ve been providing progressive, pragmatic and independent services through projects and consultancy. A key feature of our work is close collaboration with end users, researchers and developers. We talk about “linking thinking from the farm out”.

The role includes engaging with growers, industry and researchers to identify opportunities to review practices and integrate new technologies to create sustainable cropping systems. The appointee will develop and manage projects and support services that support economically and environmentally sustainable primary production.

If you know someone with passion for smarter farming who wants a key role in a small dedicated organisation, Page Bloomer Associates would like to chat with them!

More Info on TradeMe Jobs

Orchard Drainage Implementation

Figure 1. Gene Williams’ levelling blade fitted with Trimble RTK-GPS and FMX with WM-Drain drainage software

Drainage treatments in trial blocks at T&G Global’s Evenden orchard and Bostock’s Red Barn orchard. The narrow window between finishing harvest and the soil becoming too wet to work was longer than anticipated this autumn making the task easier.  All earthworks were completed and pasture re-sown. Vehicle access was restricted to allow the pasture to establish and soil to settle.

A range of treatments was included and implemented to compare to the new land shaping approach including Crasborn’s harrow and planter (Figure 2) and Aqualine V-blade, slotting and ripping and rut filling (Figure 3).

Figure 2. Crasborn Orchard Inter-row RutFiller and Regrasser
Figure 3. Aqualine fill trailer with splitter to direct brought in fill to rutted wheel tracks
GPS Levelling

Land levelling is a proven technique more commonly used in cropping, where soil is moved around to create fall across a field and allow surface water to drain off. Growers use this approach to reduce water lying on the surface and saturating areas of crop which results in reduce yield. Software is used that is specifically designed to minimise and optimise movement of soil. The height of the blade or scoop used to cut and fill soil is controlled by software through the tractor hydraulics. The same principles are being applied to existing orchard rows to create fall along the inter-rows and drain surface water off the block.

The inter-rows were rotary hoed to create a suitable tilth, to allow small volumes of soil to be moved along the inter-row (Figure 4). The elevation profiles indicated that only light shaping would be required to create fall along the inter-rows, where 100mm would be the maximum change in height (cut/fill) necessary.

Figure 4. Orchard Inter-rows pre and post hoeing, prior to land shaping

Hugh Ritchie’s Trimble RTK-GPS base station was set up in the orchard. Patrick Nicolle’s Trimble FMX unit with WM-Drain software was mounted on the T&G and Bostock tractors. A GPS Control Systems Trimble GPS antenna was mounted above Gene Williams’ 2.5m wide levelling blade, see Figure 1. The tractor hydraulics were used to control the blade height.

WM-Drain was used to record the elevation of each section in the orchard. An accurate RTK-GPS elevation profile was recorded by driving along the inter-row and the WM-Drain software used to generate the optimal profile (Figure 5), within specified parameters, such as minimum slope.

Figure 5. Screenshot of WM-Drain software, the grey area the current ground surface and the green line generated as the optimal profile

Soil was shifted using the blade to cut and fill areas to achieve the optimal profile designed in WM-Drain. Because the tractor hydraulics were not suited to automation without major changes, the blade height was manually controlled using the tractor hydraulics and lowered or raised. Multiple passes (up to six) were required along each row to move soil to create the desired profile. The results of the land levelling are shown in Figures 6 and 7.

Figure 6. Examples of inter-rows after land levelling has been completed

Figure 7. Inter-row profiles after cultivation and before land levelling (grey dotted line) and after land levelling (green line).

After earthworks the alleyways were re-sown in pasture. Vehicle access has been restricted to allow the pasture to establish and soil to settle. Timing is important to ensure orchardists can access blocks to continue their yearly programme in a timely manner, without damaging the newly formed alleyways.

The Crasborn machine cultivates and pulls soil from outside the wheel tracks using a set of angled discs. Harrows are used to break up and smooth the soil. A levelling bar with raised sections above the wheel tracks is used to further even out the soil. A compressed air seeder is used to sow pasture along the inter-row. Finally, a cambered roller creates a crowned inter-row and compacts the soil surface. The all in one implement (Figure 2) completes the final product (Figure 8) in one pass.

Figure 8. Inter-rows after Ricks Crasborn’s implement has been used to cultivate and fill wheel ruts