Ag Tips from JJ

By: Jonah T. Johnson, MS, CPAg, CCA - Sales Agronomist, PCT | Sunrise

Brought to you by: Jonah T. Johnson, MS, CPAg, CCA - Sales Agronomist, PCT | Sunrise
November 12, 2019: Do you know your number? SCN sampling time!
Soybean Cyst Nematodes, SCN for short, have become more and more of an invasive pest among soybean growers in Ohio.  Dr. Anne Dorrance at OSU always says….”Soybean cyst nematode (SCN), Heterodera glycines, was first identified in Ohio in 1981 and has now been found on soybean in 72 of the 88 Ohio counties. SCN damages soybeans by feeding on roots, robbing the plants of nutrients, and providing wound sites for root rotting fungi to enter. The severity of symptoms and yield losses are dependent on several factors including: the number of nematodes present in the field at planting, the soybean variety, tillage practices, soil texture, fertility, pH, and environmental conditions during the growing season. Once SCN is established in a field, it rarely is eradicated. SCN is the leading cause of soybean yield loss in North America and now occurs in all major soybean production areas worldwide.

 
October 30, 2019: Have you checked your fields for post-harvest weed growth? Winter annuals are coming! Check out our fall herbicide application tips!
Agronomic weed control is becoming more and more challenging for a lot of growers across Ohio. Key practices to develop weed-free fields in the spring all begin with controlling weeds in the fall after harvest.  Winter annuals germinate in autumn or winter, live through the winter, then bloom in winter or spring. The plants grow and bloom during the cool season when most other plants are dormant or other annuals are in seed form waiting for warmer weather to germinate. 
   
October 22, 2019: Going to have a “late harvest” in 2019? If you have frost damaged corn and/or soybeans, check out these tips on grain handling!
2019 has brought many challenges throughout the entire growing season, and for some of us, it’s not over yet. Harvest has been in full swing for many operations across Ohio, but for some, the extra ordinarily late planting dates still have some operations with green corn and soybeans. As I hope the next couple weeks will allow for these crops to reach maturity, there is a possibility that some crops will experience a killing frost prior to reaching maturity.
 
 
October 7, 2019: Are you applying fertilizer and lime this fall? Should you apply lime and phosphorus at the same time? And what about applying fertilizer to your “prevent plant” acres?
Fall harvest is in full swing for most of Ohio, and with drier field conditions, many growers are taking advantage and having lime, phosphorus and potassium fertilizers applied to address the successive year’s crop nutrient needs. Also, growers who were unfortunately not able to plant a crop due to excessive wet soil conditions and initiated a “prevent plant” crop insurance policy to compensate for lost crop production, are also asking questions about crop input management for the 2020 crop.    
 
September 9, 2019: Watch out for late-season insect damage in corn and soybeans!
Corn and soybean growth stages varies across Ohio from seed-fill to some areas are harvesting both crops. A few insects of relevancy currently are stink bug in soybeans and corn earworm.
   
August 26, 2019: Upper-canopy, late-season potassium (K) deficiency showing in soybeans
Every year in August, soybeans are susceptible to nutrient deficiencies, some documented (i.e. soil & tissue test analysis report low K values that did not receive adequate preplant K fertilization) and some are environmentally induced. Nutrients like potassium (K) and manganese (Mn) need water to be “in-solution” for plant root availability. Typically, K deficiency shows up in the lower to middle canopy with yellowing begining at the leaf edges and moves its way towards the middle of the leaf. Severe K deficiency can cause a scorched look with plant dieback.

   
August 15, 2019: Curious what your corn will yield? Time to check your ears!
Okay, so I will back-up a step. Not everyone’s corn in Ohio is through the reproductive stages yet, but for those of you that have pollinated ears of corn, now may be the time to estimate what to expect as far as production.  
 
August 8, 2019: Problematic pigweeds are poking above the canopy! Time to scout now!
What is the first thing you think of when pigweed is mentioned? For any grower that has battled to control this pernicious weed species in agronomic crops production, they will tell you to NOT lose control of this weed family.    
 
July 18, 2019: Applying a fungicide or foliar nutrition product? Make sure to identify your soybean’s proper growth stage for proper application timing!
Ohio crops are beginning to progress, and for those of us who have interest in applying foliar fungicides and /or foliar nutrition products to our soybeans, knowing the proper growth stages is crucial to enable your crop to maximize performance from the intended application.  
 
July 9, 2019: Corn Disease Evaluation: Incidence versus Severity and Palmer Amaranth Identification
2019 has brought us many challenges and we are only halfway through!  Frequent rain events will allow the disease inoculum to keep building.  Foliar fungicide application is in full swing in some parts of Ohio.  If you have a grower who undecided about applying a foliar fungicide and wants to evaluate disease pressure before employing an application, you should always look for two things: Disease “Incidence” and “Severity.”
 
July 5, 2019: Watch out on crop growth stages & herbicide/adjuvant mixes!
Mother Nature “flipped” the switch and we are now experiencing “normal” summer temperatures in Ohio.  This quick transition from 70-degree days and 50-degree nights to 90-degree days and 70-degree nights has made crop and weed growth explode in the last five days, also leaving plants with extremely thin cuticles, similar to the outermost layer of your skin.

 
June 10, 2019: Residual Herbicide “Post-Application” Cutoffs and “Prevent Plant” Resources
Residual Herbicide “Post-Application” Cutoff
With the onset of corn planting and the sense of urgency to initiate #plant19, some growers are in the situation of having no burndown herbicide application completed prior to corn planting.  Others have emerged corn and have not applied an herbicide application.  One class of herbicides we do not want to eliminate are the residual herbicides.

 
June 4, 2019: Should I increase my soybean seeding rates? Be on the lookout for BCW!
Should I increase my soybean seeding rates?
We are all aware that some growers are progressing with #plant19, and some are unfortunately not. Planting date is major factor in setting the yield potential of soybean.

 
May 23, 2019: How does a soybean seedling emerge?  What is the proper timing for “head scab” prevention in wheat?
Soybean Germination and Emergence
With many customers planting more soybeans earlier than we have seen in the past, it is also prime time to share information on how a soybean plant develops.

 
May 15, 2019: Where’s your wheat growth stage at? Some parts of Ohio are heading and will be pollinating soon. Be on the look out for foliar disease and FHB!
F.H.B.
Fusarium head blight (F.H.B.), commonly referred as wheat “head scab,” is a common disease we can face every year, all dependent on the environmental conditions. 
Wheat in the southern part of Ohio is approaching heading or just headed, which means that flowering will start within 4-5 days, depending on temperature (heads produce small yellow anthers).

 
May 8, 2019: Do you have large weed populations in your fields? You are not alone. Looking to introduce biology into soil, reduce biomass and boost your herbicide efficacy? 
The USDA/NASS stats reiterate what we are all currently experiencing! Recent data for Ohio says only 2% of Ohio’s projected corn acreage was planted - compared to 20% last year and 27% for the five-year average. Frequent rain evens, followed by below average air temperatures has kept the planting process to minimal levels, yet the weeds keep growing!

 
April 30, 2019: It’s Wet And We Are Delayed With Planting: How Should We Adapt Our Burndown Herbicide Program?  
The Ohio State University Extension takes a look at questions on how to deal with burndown herbicide treatments in delayed planting situations.   
 
April 26, 2019: Is Your Planter Ready For 2019?  Here Is A Quick Refresher.
1. Level the Planter.
Check your hitch height. Make sure the planter’s tool bar is level (vertically) or running slightly up hill. When planters tip down, coulters run too deep and the closing wheels run too shallow. 

2. Check Tire Pressure.
While it seems basic on a ground planter, this can be the difference between a good solid stand and one that is thin due to drive tire slippage. 

3. Check Brushings and Parallel Linkage.
Worn bushings increase row bounce which increases seed bounce. Stand behind the row unit and wiggle it up and down and back and forth checking to make sure bushings are tight.
 
April 18, 2019: With the on-set of corn planting, the next question you get is “How long does it take corn to emerge?
A Few Items to Keep in Mind
  1. Imbibe 30-35% of kernel weight in water           
    1. Imbibitional chilling-absorbing cold water and causing emergence issues
    2. Important to have good seed to soil contact 

  2. Soil Temps at least 50 degrees Fahrenheit
    1. Radical elongation
    2. Seminal roots- cease growth at V3 and nodal roots (a.k.a. “adult roots” begin to emerge
    3. Energy is coming from endosperm (a.k.a. the seed reserves) 

  3. VE-Mesocotyl pushes Coleoptile through the soil surface
    1. 90-120 growing degree day’s (GDD) to emergence
    2. Crown and Nodal root are at .75 inches below soil surface
April 10, 2019: Still questioning your winter wheat stands? To destroy or not to destroy...that can be a challenging question. 
Numerous inquiries have come on whether or not to proceed with managing thin wheat stands for yield. Over the years, I have seen really thin stands perform very respectfully well. Wheat is surprisingly a very resilient crop.
 
However, if you have large holes within fields that are completely missing stands, then those are easier candidates to terminate and transition to soybeans or corn. Sometimes wheat stands in linear rows can be deceiving, especially when there is brown tissue within the row. Be sure to take adequate stand counts to quantify your yield potential and to determine the best course of action.
April 5, 2019: Curious on StandUp Fertizol family, starter fertilizers and BioBuild BioComplete mix timings
How long prior to use can PCT | Sunrise® StandUp® Fertizol® and Fertizol® Zn be mixed with starter fertilizers? Secondly, how early before applying BioBuild™ BioComplete can it be mixed with water? 
From an operations standpoint, we are aiming for a “just in time” delivery of these products to the farm when they are premixed at the plant. Ideally these products should be kept separate from the starter fertilizer and added “just in time” for planting use at the farm.  

StandUp Fertizol and Fertizol Zn
  • When mixed with starter fertilizer, the product should be applied within 24-48 hours.
  • These products are very strong and have the ability to start pulling impurities out of the starter fertilizer (e.g. 10-34-0), and occasionally can cause solids to form in the tank. This is why we recommended using as soon as possible after mixing.
  • ​When using StandUp premium starters with the Fertizol family of products, application is recommended as close as possible after being mixed. As with most product mixes, agitation/recirculation is recommended prior to application.
BioBuild BioComplete
  • Should be protected from freezing.
  • Ideally when mixing with water, it should be used as soon as possible.
  • If a rainout occurs after mixing, and the solution has to sit in a tank, try to avoid direct sunlight as much as possible when waiting to apply.
  • As a reminder, there are live organisms in this product which will continue to reproduce. Keeping out of direct sunlight slows this process, therefore minimizing solids formation.
March 26, 2019: Have you checked your winter wheat? 
Wheat has broken winter dormancy…so have the weeds.  Click for herbicide recommendations when “top-dressing” your wheat.”