VRT Solutions

Nitrogen - variable rate tips for 2026. In light of the dramas the industry is facing. A few important points to remember if you are planning on using biomass for VR nitrogen: #jfg 🧵

$10.6 billion, and this was at last years prices 🤯 Variable rate adoption has moved to a requirement, not a luxury. Make sure you find the best methods to optimise your targets. #jfg #deeperisbetter

We have made some adjustments to our plant density/seed rate calculator, with a focus on canola seed. Optimise your rates! Free for everyone, feedback and comments welcome. #jfg #deeperisbetter tools.vrt-solutions.com/denseedy

@therealbiztang Close to zero

Soil testing deep N on some poor EP sandy country, tips on how much N is left over?

World leading in WA. 10cm increments, you'll notice "measured and predicted" in top left alongside the depth increment. Fantastic insight into the soil profile and where sands meet clays, moisture retention and salinity issues in a vertical plane #jfg #deeperisbetter

Nitrogen - variable rate tips for 2026. In light of the dramas the industry is facing. A few important points to remember if you are planning on using biomass for VR nitrogen: #jfg 🧵

Make a VR nitrogen map from scratch in about 1min. @Spectare_VRTS #jfg #deeperisbetter

@David_Agronomy Use soil maps to identify best areas to attack. This makes time/$ spend most effective, removes ambiguity especially if using contractors. Have seen $500/hr reefinators driving aimlessly around farms before...!

Anyone got experience with a Reefinator for rock crushing new land? I imagine it very much depends on the type of rock, but can you realistically do hundreds of ha's, or are they more suited to targeting problem areas and do they need multiple passes? How many Ha's would you realistically cover in a season? Any thoughts appreciated.

@BridgetWatkins0 @SoilsWest @GRDCWest @DPIRDbroadacre @GGA_WA x.com/i/status/20388…

Question put to a panel of agronomists on Nitrogen decision making at seeding. Useful? What are you doing to manage N this year? #nitrogen

7. Remove or reduce saline/waterlogged areas as zones of application. This is particularly easy with EM maps or historical yield or biomass data.

6. If you have soil maps, even setting 2 rates (light country, heavy country) can help mitigate risk in a year like this. This can be done any number of ways.

5. Canola – After 5% flower, NDVI data becomes increasingly useless. However, the last 2 weeks of cabbage normally have a good correlation to yield at the end of year. Please refrain from using NDVI data on Canola once the flowers come out.

4. Non-wetting: Staggered emergence can mislead classification of zones, and NDVI scale is important! Soil maps (EM and Gamma) can help here.

3. When NDVI data is calculated, it can ONLY be between 0 and 1. It is common to find early season 2-6 leaf cereals range from 0.05-0.2, and later season crops (Zadoks 45-65) can range between 0.1-0.95. Treat with caution as the range plays a big role in accuracy of VR N.

2. Scout before applying: Extremely important that you assess that you are not applying N to areas of weeds. Basic stuff, but often overlooked due to time pressures. Please ensure that your paddocks are clean before zoning for VR N.

1. Normally we don’t recommend VR N at seeding. Soil tests are so unreliable for N, it is difficult to assess properly. If there is more moisture, then use a little more, if its drier, use a little less, so you hopefully have some in the pocket for later. KISS rule here!

Hope this helps. At the very least, we can optimise what we have and do the best we can in 2026. Our website: vrt-solutions.com