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Spray Tank Mistakes Costing Farmers Thousands
Farmers spend countless hours choosing the right herbicide, the right rate, and the right timing. But what if the biggest factor in spray performance is something most growers never test?
The water in the tank.
In this episode of Farm4Profit, we sit down with AGX to discuss how water quality and adjuvants impact herbicide performance — and why many spray failures have nothing to do with resistance or product choice.
Because the reality is, You’re mostly spraying water, not chemical.
And if that water isn’t conditioned properly, your herbicide may be neutralized before it even reaches the weed.
We break down the chemistry happening inside the spray tank.
💧 Why Water Quality Matters
• Roughly 90–95% of your spray tank is water
• Many growers have never tested their spray water
• Hard water minerals like calcium and magnesium can bind with herbicides like glyphosate
• Once herbicide binds to these ions, the reaction cannot be reversed
⚗️ What Happens in the Spray Tank
• What “hard water” actually means
• How calcium and magnesium deactivate herbicides
• Why spray water pH matters
• What alkaline hydrolysis is and why it can degrade chemistry quickly
• Why herbicide effectiveness can decline while you’re driving to the field
🧪 The Correct Mixing Order
Many spray issues come from simply mixing products in the wrong order.
The correct order should be:
Water
Water conditioner / AMS / buffering agent
Herbicides
Surfactants or crop oils
Drift reduction products
If herbicide goes into bad water first, it can bind immediately and lose effectiveness.
🌱 Understanding Adjuvants
• What adjuvants actually do
• The difference between surfactants, oils, buffers, and water conditioners
• Why glyphosate specifically requires conditioning
• The role of ammonium sulfate (AMS)
• Why dry AMS sometimes fails to solve the problem
💰 The Economics of Water Conditioning
We also compare the real costs:
• The cheap cost of conditioning water
• The expense of re-spraying fields
• The yield loss from surviving weeds
And we discuss an uncomfortable truth:
Some weeds labeled as “resistant” may actually be survivors of poor spray applications caused by water chemistry.
Proper adjuvant use and water conditioning can improve herbicide performance, reduce re-sprays, and potentially lower overall chemical usage.
Sometimes the cheapest yield protection available isn’t another chemical.
Want Farm4Profit Merch? Custom order your favorite items today!
https://farmfocused.com/farm-4profit/
Don’t forget to like the podcast on all platforms and leave a review where ever you listen!
Website: www.Farm4Profit.com
Shareable episode link: https://intro-to-farm4profit.simplecast.com
Email address: [email protected]
Call/Text: 515.207.9640
Subscribe to YouTube: https://www.youtube.com/channel/UCSR8c1BrCjNDDI_Acku5Xqw
Follow us on TikTok: https://www.tiktok.com/@farm4profitllc
Connect with us on Facebook: https://www.facebook.com/Farm4ProfitLLC/
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
View all episodes
By David Whitaker, Corey Hillebo, Tanner Winterhof
4.8
354354 ratings
Farmers spend countless hours choosing the right herbicide, the right rate, and the right timing. But what if the biggest factor in spray performance is something most growers never test?
The water in the tank.
In this episode of Farm4Profit, we sit down with AGX to discuss how water quality and adjuvants impact herbicide performance — and why many spray failures have nothing to do with resistance or product choice.
Because the reality is, You’re mostly spraying water, not chemical.
And if that water isn’t conditioned properly, your herbicide may be neutralized before it even reaches the weed.
We break down the chemistry happening inside the spray tank.
💧 Why Water Quality Matters
• Roughly 90–95% of your spray tank is water
• Many growers have never tested their spray water
• Hard water minerals like calcium and magnesium can bind with herbicides like glyphosate
• Once herbicide binds to these ions, the reaction cannot be reversed
⚗️ What Happens in the Spray Tank
• What “hard water” actually means
• How calcium and magnesium deactivate herbicides
• Why spray water pH matters
• What alkaline hydrolysis is and why it can degrade chemistry quickly
• Why herbicide effectiveness can decline while you’re driving to the field
🧪 The Correct Mixing Order
Many spray issues come from simply mixing products in the wrong order.
The correct order should be:
Water
Water conditioner / AMS / buffering agent
Herbicides
Surfactants or crop oils
Drift reduction products
If herbicide goes into bad water first, it can bind immediately and lose effectiveness.
🌱 Understanding Adjuvants
• What adjuvants actually do
• The difference between surfactants, oils, buffers, and water conditioners
• Why glyphosate specifically requires conditioning
• The role of ammonium sulfate (AMS)
• Why dry AMS sometimes fails to solve the problem
💰 The Economics of Water Conditioning
We also compare the real costs:
• The cheap cost of conditioning water
• The expense of re-spraying fields
• The yield loss from surviving weeds
And we discuss an uncomfortable truth:
Some weeds labeled as “resistant” may actually be survivors of poor spray applications caused by water chemistry.
Proper adjuvant use and water conditioning can improve herbicide performance, reduce re-sprays, and potentially lower overall chemical usage.
Sometimes the cheapest yield protection available isn’t another chemical.
Want Farm4Profit Merch? Custom order your favorite items today!
https://farmfocused.com/farm-4profit/
Don’t forget to like the podcast on all platforms and leave a review where ever you listen!
Website: www.Farm4Profit.com
Shareable episode link: https://intro-to-farm4profit.simplecast.com
Email address: [email protected]
Call/Text: 515.207.9640
Subscribe to YouTube: https://www.youtube.com/channel/UCSR8c1BrCjNDDI_Acku5Xqw
Follow us on TikTok: https://www.tiktok.com/@farm4profitllc
Connect with us on Facebook: https://www.facebook.com/Farm4ProfitLLC/
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
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