Precision Nutrient Management Extension Specialist for Ok State Univ. Work in Wheat, Corn, Sorghum, Cotton, Soybean, Canola, Sesame, Alfalfa, Pasture/Hay.
Oklahoma State University
Joined May 2010
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Brian Arnall retweeted
Corn is down again today. How do the fertilizer ratios look?
Urea - highest/worst 25% of week's going back to 2021
UAN - highest 19%
DAP - highest 7%
Potash - lowest 40%
NH3 on 1st comment below.
Diesel - bad
Fertilizer - bad
Grain - bad
Farmer economics - bad
Brian Arnall retweeted
Phosphate values remain flat while corn/grain values continue to take a beating.
How bad is the relationship at the start of fall application?
With a current ratio of 172 bushels of corn per 1-ton of DAP, only 7% of the weeks going back to 2020 have been as high or higher...
Here's your USDA Fertilizer Price report. Its interesting that the USDA reports showed improvement in N$ while last weeks local dealers notes N$ increase. Will dig more into that mid week. Check out the OSUNPK.com for the conversation on what's happening to drive $$
OSU Winter Crops School Registration in Open. We will start Dec 15 at 10 and conclude Dec 16th. 14 CCA CEU's (4NM, 4SW, 2CP, and 4 IPM) and 4 ODAFF credits. wintercropsschool.com Will be highlighting sessions over the next few weeks. Really excited about who we are brining in!
Brian Arnall retweeted
More people should know this.
To the extent that aggregate stability reflects soil structure, this is good news: stability is not highly related to soil C, but rather to tillage intensity.
Improve soil structure by reducing tillage; no C increase needed.
From @soil_institute
soilhealthinstitute.org/dr-k…
Brian Arnall retweeted
Urea market has a decision to make.
Ongoing Middle East fighting is devastating global supplies - bullish.
Grain markets are getting destroyed - bearish.
China is exporting more - bearish
Other global production still hurting - bullish
What a time to be alive...
The Oct 2 USDA report shows a little movement in fertilizer price across the state. Quiet is good for now, but everything out there is signally a change soon. Check out the overall report on OSUNPK.com Next Monday we will have another report from our local suppliers.
Brian Arnall retweeted
China keeps approving more rounds of urea exports, and that has the market bearish!
If my count is right and they follow thru, their exports for 2026 may be nearing double their normal annual rate. Even better, most of those exports are coming 2nd half of the calendar.
Brian Arnall retweeted
Crop roots = standard oil well
Crop roots + mycorrhizal network = a fungal fracking system.
Just like their petroleum counterpart, the root+fungi system is extractive because we harvest the collected nutrients.
The difference is that we keep adding nutrients back to the soil.
ALT From Wikipedia. Root system extended by a mycorrhizal hyphae network.
Working on getting corn and sorghum trial reports out ASAP. Mean while here's the cost per lb of nutrient based on the USDA report.
The September USDA report shows Nitrogen moving in both directions depending on source. The OSUNPK.com blog walks the readers through why this is the case.
Also I now have enough local venders and will be sharing a true local price report next Monday.
Brian Arnall retweeted
Some may think a bucket of beer means this… but it’s really 24 12oz cans of 1890 Original packed inside the bucket with 4 1890 Original Koozies! Get yours so your friends know you’re cool! #GoPokes
Recently had several calls/emails asking about the outcome of some planted undies. It really got me thinking about what a cool teaching tool it is, and how its also been maybe over used at times. Well those thoughts made it into a blog. Check it out. osunpk.com/2026/09/17/soil-y…
Getting the last of our corn cut in the main body of the state at the Mingo Valley research station in Bixby. Yield here better than the rest of what we’ve been in this year. Really hoping this ground gets a ring. Find results at OSUNPK.com very soon.
Brian Arnall retweeted
I talk fertilizer and stuff:
- Middle East/Russia conflicts continue to dominate markets
- Rising European gas costs could hurt more nitrogen production
- Could higher grain prices spell higher fertilizer demand this fall?
youtu.be/FIgd6jdplJU?si=0mdm…
I hope everyone is having a great Labor Day and staying cool if you can. Find the full Market report on osunpk.com/2026/09/07/osunpk…
Grain Sorghum Variety trial data is coming in from the Cropping System crew. Check out the blog for results from Tipton and Chickasha. osunpk.com/2026/09/04/2026-g…
