Posted on

how to increase weed seed bank

John Deere's Journey Continues

John Deere's New See & Spray Ultimate Sprayer Is Next Step in Company's Journey

John Deere’s latest advances in sprayer technology are viewed as a journey by company officials. That journey continued last fall when it invited a group of ag media to a Georgia cotton field for an advanced look of its latest introduction: See & Spray Ultimate. (Information on the sprayer was embargoed until now.)

It’s the next generation of the company’s targeted spraying technology, first introduced last year as See & Spray Select. That model detected color differentiation in the field and was suited for small-grains farmers managing weeds on fallow acres. As the sprayer moved through the field, boom-mounted cameras detected the green plants (weeds) and triggered a herbicide application to those plants only.

See & Spray Ultimate provides “green on green” in-season targeted spraying for fields planted to corn, cotton and soybeans in 30-inch or wider rows, as well as broadcast spraying capabilities. The factory-installed system will be available for model year 2023 John Deere 410R, 412R and 612R sprayers. Limited quantities will be offered for ordering later this year. Pricing will be released later this year.

Spraying only weeds in a growing crop without broadcasting herbicides on the entire field has long been the holy grail for farmers. The immediate benefits are obvious:

— Spray more acres per load.

— Reduce the environmental footprint.

— Lower herbicide costs.

Deere officials are just as excited about the possibilities the See & Spray Ultimate offers.

Marcio Neutzling, who leads the spraying product management team, says, “See & Spray is one of the most rewarding product evolutions we’ve had in recent history. It’s the first one in a journey in which we will bring more products, leveraging AI (artificial intelligence) and machine learning technology.”

More Recommended for You

Recommended for You

Behind that evolution is targeted spray technology developed by Blue River Technology. Deere acquired the California-based intelligent machinery company in 2017. The platform deploys multiple technologies — computer vision, machine learning and deep learning, on-board processing and more — to enable the sprayer to see and act.

See & Spray Ultimate uses 36 cameras mounted every 3.28 feet across the 120-foot carbon-fiber truss-style boom. The cameras are networked together, scanning more than 2,100 square feet per second and capturing about 40 images per camera in a blink of an eye as the sprayer moves through the field, explains Erik Ehn, director of product development at Blue River. The brains of the system are 10 CPUs mounted on the boom, generating nearly four gigabytes of data per second. Inside the computer processing units, deep learning models are applied to the plant images and detection is made — crop-weed-weed-crop-crop, for example. Once a weed is located and identified, a command is sent to the proper nozzle to turn on or off as the sprayer moves through the field up to 12 miles per hour.

The See & Spray Ultimate solution can “reduce non-residual herbicide use by more than two-thirds and maintain a hit rate comparable to traditional spraying,” points out Franklin Peitz, marketing manager for John Deere.

Another key feature of See & Spray Ultimate is the split tank and two independent plumbing systems. The 1,200-gallon option consists of a 450-gallon tank for targeted spraying and a 750-gallon tank for broadcast spraying. The 1,000-gallon option is split into a 350- and 650-gallon tank for targeted and broadcast spraying, respectively.


University of Arkansas weed scientist Jason Norsworthy says these features provide a grower greater flexibility in a weed control program. For example, you could choose to apply a residual broadcast application and non-residual targeted application in a pre-emergence pass or targeted spray only as a clean-up pass. Additional crop inputs such as fungicides and liquid fertilizer can also be added in the spray pass.

Norsworthy points out the system can help growers manage other potential problems associated with herbicide application.

“Antagonism can be a big issue when you mix certain herbicides. By being able to split these herbicides (in separate tanks), we’re going to be able to maintain a high level of efficacy and minimize potential damage to crops,” says Norsworthy, who has tested a prototype of the See & Spray sprayer. “In addition, keeping certain spray solutions apart, I’m extremely confident that we’re going to do a better job minimizing volatilization to keep these products on target.”

But he cautions the potential for the See & Spray technology to lower chemical costs is going to be a function of the soil seed bank. “We’re not likely going to pull out the residual herbicides in this system. They are still going to have tremendous value. The grower who has done a good job of managing those soil seed banks is the one who is going to see the most value associated with this technology. They’re going to have a tremendous reduction in the use of postemergence herbicides.”


The See & Spray Ultimate is more than just about targeted spraying of herbicides. As it makes a pass through the field, it generates two maps to provide insights growers can use to make better weed management decisions.

One is the “as applied” map for targeted spraying that shows the percentage of the field herbicide is applied on each pass. The second is the weed pressure map that displays the location of weeds in a field. “These maps help the farmer have that conversation with his weed control adviser,” explains Ryan Stien, product manager See & Spray for Deere. “How do you want to plan for perhaps another pass this season to clean up escapes, or do I look at changing my program for next season?”

From a weed resistance management standpoint, Norsworthy sees tremendous value in the two maps. “While at this point the See & Spray system can’t identify the weed species, the mapping capabilities isolate areas in a field where we have certain weeds or group of weeds. That’s generally a good indication we probably have failure of a herbicide or some other issue in that area of the field that we need to address. Or we may be seeing the onset of resistance.”

The John Deere MY23 sprayers come factory equipped with JDLink connectivity, plus a new integrated StarFire 7000 GPS receiver and Generation 4 CommandCenter display. The receiver brings to market a new type of RTK signal, SF-RTK that relies solely on satellite communications. Maps produced after each spray pass are available in the John Deere Operations Center.

“See & Spray Ultimate is all about giving farmers more information, more insights to provide that return on investment to maximize efficiencies and improve profitability for the farmer,” explains Kaylene Ballesteros, Deere product market manager.

Officials say there’s more to come. “This is the first iteration of the See & Spray Ultimate technology,” notes Stien. “It’s a platform really for the future for implementing artificial intelligence and machine deep learning.” And to jumpstart the next step in Deere’s journey.

Natural fertiliser: Gardener shares 3 handy tips to boost plant health ‘Extra goodness’

We use your sign-up to provide content in ways you’ve consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time. More info

When you think of garden fertiliser, store-bought chemical products may be the first thing to spring to mind. However, there are plenty of natural ways you can make your own plant food for a cut of the price.

Related articles


According to Shannon Keary, @DiaryofaLadyGardener on Instagram and the voice behind the Diaries of a Lady Gardener podcast, making your own fertiliser can be rather “satisfying”, as well as eliminate waste from your home.

Having spent the last year exploring “alternatives” to traditional fertiliser, Ms Keary shared three of her favourite methods exclusively with

Not only can making your own fertiliser save money, but the gardening influencer also cites it as an opportunity to get “creative” in the journey towards learning more about your plants.

Making your own fertiliser is a great way to use waste food products in the garden. (Image: Getty Images)

She said: “It’s really satisfying knowing exactly what you’re putting into the soil rather than picking something up off the shelf that you don’t completely understand. It has really helped me to learn more about soil and plant nutrition first hand.

“Most of the time it can be really cost-effective, and yield better results than many products you buy straight off the shelf.

“And finally, it’s a great way to combat your food waste and really help to reduce the amount you’re sending to landfill or other places that you have no idea what is happening to your waste.”

However, before embarking on your journey, Ms Keary warns beginners not to get caught out by certain home fertiliser kits.

She explained: “The only thing to watch out for is that there are lots of expensive products you can buy to ‘make it easy’ to start creating your own natural fertiliser, but you can totally make your own DIY version for free or a fraction of the cost if you get creative.”


Three ways to make your own fertiliser at home

Start your own worm farm

Worm farming is a way to dispose of unwanted food waste and produce a liquid fertiliser. Certain food scraps can be placed in the worm farm, and special worms eat their way through it.

Ms Keary said: “I’ve joined the #1000wormfarmers movement last year, where the worms turn my food waste into a super nutrient-dense compost which I can add to beds, and a liquid which can be diluted as a liquid feed.

“They live at the allotment in my shed and although it takes three to four months to be ready to use, it’s a real game-changer for fantastic, free fertiliser which is high in nitrogen and potassium.”

Though she says you can “feed the words pretty must anything” she warns that food waste can’t be too acidic.

She added: “It makes it a great place for your food waste and they’re really easy to keep happy and healthy. I hope to scale up my worm farm later this year for extra goodness.”

From eggs to banana peels, using leftover food scraps is a traditional way to compost (Image: Getty Images)


Invest in a Bokashi bin

A bokashi bin is a Japanese system that pickles your waste. Translated directly, bokashi means fermentation.

Typically you will need two bins, both of which can be kept indoors and are great for small spaces.

You also need special bran which is infused with good bacteria to help the process.

This is the most recent method Ms Keary is trialling, but so far she says it is “great”.

She explained: “I can keep it in my kitchen like a standard food waste caddy except it doesn’t smell anywhere near as bad.

“Whilst the compost and worms are a great option, my allotment is a 20-minute drive away so it’s a good solution for those without direct outdoor space.

“You can add pretty much any food waste with inoculated bran and in the container; it all ferments and breaks down producing a liquid fertiliser that is high in nitrogen. This can be diluted and used on all plants, then after around two weeks you can bury the contents of the bin in a compost heap or in the garden for it to continue breaking down and feeding the soil.”

Related articles

What to sow in your garden in March (Image: DX)

Use food scraps to make compost

From eggs to banana peels, using leftover food scraps is a traditional way to reuse waste products as compost.

Ms Keary explained: “I also make my own compost on the allotment with extra food scraps, plant debris and weeds, but I’m a little more precious about what goes in here, keeping my heap to a ‘vegan’ diet and free from any weed seeds – this is my best option for making goodness for the soil in quantity.

“This can then be used as a mulch to top up and feed my no-dig beds each year.

“No-dig helps to feed the soil without such a need for constant feeding/fertilising, allowing the natural ecosystems to do their thing without too much interference from us.

“By not digging into their habitat, and adding organic matter each year, you can improve the fertility of the soil, improve the structure, benefit the micro-organisms and help suppress weeds.