Tuesday, February 5, 2013

Key Winter Wheat Stages


Chad Lee, Extension Agronomist, University of Kentucky

Wheat at 70 to 100 tillers per square foot is considered an adequate stand.Wheat at the lower end of the range would be a candidate for a low rate of fertilizer nitrogen applied at Feeke's 3, which normally occurs in late February or early March. Wheat above 100 tillers per square foot are at an excessive population and should not have any nitrogen added at Feeke's 3.Instead, a single application should be made a little later at Feeke's 4-5 (around mid-March).


Table 1. Key numbers in wheat.

Crop Stage Number Units
Emergence 25 plants/sq.ft.
Tillering 70 to 100 tillers/sq.ft.
Heading 60 to 70 heads/sq.ft.
Heading 35 kernels/head

Use Table 2 as a guide for measuring 1 square foot in a wheat field.

Table 2. Length of Row Needed for One Square Foot.
Row width (inches) Length of row needed for 1 sq ft (inches)
4 36
6 24
7 20.6
7.5 19.2
8 18
10 14.4
159.6
If a split application of nitrogen is to be used, then the first application is applied at Feeke's 3 and the second is applied at about Feeke's 5 (in mid- to late-March). Total N (from both applications) should be in the range of 80 to 120 lbs/acre for no-tillage wheat and about 60 to 100 lbs/acre for tilled wheat.

For more information on stand counts or nitrogen management


Tuesday, January 8, 2013

Winter Wheat Meeting Today

Chad Lee, Extension Agronomist, University of Kentucky

The University of Kentucky Winter Wheat Meeting is scheduled for today, January 8, 2013 at the James E Bruce Convention Center in Hopkinsville, Kentucky. Topics include wheat row widths, adapting wheat to a changing climate, problems from the 2012 season and how the carry over into wheat, managing for higher prices, and others.

For the program, click here

Wednesday, December 12, 2012

Corn Hybrid and Soybean Variety Trials Available

Chad Lee, Extension Agronomist, University of Kentucky

The University of Kentucky Hybrid Corn Performance Trials and Soybean Variety Performance Trials are both available online. Crops in both performance trials experienced the same heat and water stress that many crops across the state experienced in 2012. Only three sites were reported in the corn trials while all six sites were reported in soybeans.

The cross location averages are the best indicators (or predictors) of hybrid and variety performance next season. Most farmers think that the field closest to their own farms is the most relevant to them. By relying on the closest location, the person makes the assumption that the environmental conditions in 2013 will be exactly the same as the conditions in 2012. Most of us are hoping that 2013 is much better than 2012! The cross location average provides the best indicator of hybrid or variety performance across various environments.

Friday, November 16, 2012

Fall Armyworm- Follow-up on the Fall 2012 Infestation.

Doug Johnson, Extension Entomologist and Patty Lucas, IPM Specialist


Fall armyworm moths.
We know a number of you had to deal with the large infestation of fall armyworm we saw this past September and October. Infestations were reported in grass hay, & pasture, newly established or renovated forage grasses, wheat and rye cover crops, as well as in late maturing soybean and early planted wheat for grain. This was an unusual event, perhaps the largest population of FAW in recent memory.

We would like to gauge the spread and impact of this pest in Kentucky. To aid us in this we have prepared a short survey on the Survey Monkey web site. This is a short survey and will not take you more than a few minutes to complete. We would appreciate it very much if you would provide us with your experience. You can reach the site at:


This may not be a clickable link in the blog. If you cannot click on the address then please copy and paste  the address into your browser.

No information that will identify you will be collected by the site. There is one location in the survey where you may leave an email address to follow up if you so choose. Those addresses will be held in strict confidence. They will NOT be shared with anyone else, and will be stored offline.

We thank you in advance for taking just a few minutes to help us understand the impact, and distribution this insect had in 2012.



Monday, October 29, 2012

Revenue Risk, Forward Contracting, and Crop Insurance

By Cory Walters and Richard Preston
     The 2012 corn crop has raised important questions about the validity of forward contracting.  Forward contracts are a vital risk management tool because they remove price uncertainty.  However, they must be used correctly to avoid increasing risk in other areas, namely yield risk.  The purpose of this article is to discuss important pieces of information that need to be understood before signing a forward contract.
     In the traditional view, crop marketing advisors tell you it is prudent to manage price risk through marketing.  Crop insurance salespeople tell you it is prudent to manage yield risk through purchasing crop insurance (revenue insurance potentially provides price protection if losses exceed the deductible).  These two decisions are often made independently because crop marketing advisors don’t always understand crop insurance and crop insurance salespeople don’t always understand the market aspects, but this is slowly changing.  
     The decision of how much to forward contract and what crop insurance contract to purchase is related through an underlying price-yield relationship.  Let’s assume you took a marketing advisor’s advice and forward contracted a percentage of expected production.  Was price risk reduced?  Yes, but now those bushels must be produced, so yield risk went up.  A combination of price and yield risk, or revenue risk, provides the true measure of how much risk was reduced or possibly increased.  Risk stemming from revenue uncertainty rose dramatically in recent years.  Production costs also increased dramatically, increasing the risk of losing more capital.  Prices throughout the crop year varied tremendously, increasing the risk of ending up in the bottom third of prices.  Farm yield risk was likely underestimated because, up until this year (especially for corn), yield has been friendly.
     Across a large region like western Kentucky, the relationship between harvest futures prices and farm yields is negative, meaning that lower yields generally result in higher prices.  The strength of this relationship changes as we move away from average values to extremes.  This year happens to be one where that relationship is strongly negative.  A number of Kentucky producers are experiencing very low yields with very high prices.  However, in many cases this year, harvested yields have fallen below forward contracted levels, resulting in producers buying out those positions.  This situation shows the importance of understanding yield risk and the implications of having to buy back overhedged yield. 
     The ability to buy back depends upon the amount of available working capital.  If capital is not available, the producer may be faced with default which could result in farm liquidation.  Crop insurance could possibly pay back a large portion, if not all, of these expenditures but insurance payments typically come after the buy-out has occurred.  So, cash flow is needed. 
     The benefit from crop insurance for the 2012 crop will depend upon the type of selected crop insurance policy.  With 2012 yields and harvest prices not yet know a detailed analysis is not yet available.  In lieu of this analysis, a good starting point for the 2013 crop would be a revenue protection policy at a high coverage level with enterprise units along with selecting trend adjustment.  As for forward contracting, caution is warranted; we are a long ways away from 2013 harvest with likely good pricing opportunities to come, so sell in small percentages until a better idea of crop size is evident. For questions and comments please contact Cory Walters, Assistant Professor, University of Kentucky at cgwalters@uky.edu.

Friday, October 5, 2012

Fall Armyworm in the Near Term.

Doug Johnson, Extension Entomologist


I am still receiving calls about fall armyworm (FAW) primarily as they affect pastures and especially reestablishment of grass fields and waterways. Most people are able to get control relatively easily, once the infestation is found; and by now quite a few folks are looking!

We have a few pieces of good news. The capture of moths in the UK-IPM trap at Princeton, KY has decreased significantly to 69 moths / trap-week. Additionally, we have a forecast of very cool temperatures and perhaps some significant frost. Both of these will have a generally debilitating effect on the FAW population.

It is quite reasonable to assume that FAW populations will decrease over the next week or so. Nevertheless, it is impossible to predict what will occur in a specific field or portion of a field. That is all completely dependent on how cold it gets and for how long that cold lasts. This is especially important for producers pushing up against the planting date window for newly seeded grasses. If you must plant / renovate in the near term then be sure that: 1.) There is no uncontrolled FAW infestation in your field. 2.) Make sure you begin checking your newly seeded grasses as soon as they begin to emerge for the presence of a new infestation.

For those producers planting winter wheat, waiting until after the Hessian fly free date, which from the date of this writing (Fri. 10/5/12) would be another week to 10 days, depending upon where you are located, could reduce your risk substantially. Again, this is almost completely dependent upon the weather, especially temperature, during this time frame.

Temperature forecast over the next ten days is about normal. There is a chance of frost on Sat. 10/6 and Sun. 10/7 but after that the temperatures will moderate once again. This weather is certainly not preferential for FAW growth and development and I would expect a continual decrease in the population size. However, I don’t see any immediate event in the next ten days that will remedy the problem for the season. So, for the time being, those with susceptible crops (all small grasses) should keep checking for the presence of this pest.

Wednesday, October 3, 2012

2012 Wheat Contest Winners and Production Practices

Chad Lee, Extension Agronomist, University of Kentucky

The 2012 Kentucky Extension Wheat Contest winners are published. State champions are awarded to the highest yields each in No-Tillage and Conventional Tillage. Clark Farms of Graves County was the Tillage State Champion with a yield of 115.41 bushels per acre. The No-Tillage State Champion was Blake Edwards of Green County with a yield of 108.51 bushels per acre. For the contest, Kentucky is divided into four areas. Area Champions are awarded to the highest yield in each area (that is not a state champion), regardless of tillage class. Area 1 Champion was Malcolm Oatts of Christian County (108.18 bu/acre, tillage). Area 2 Champion was Flat Lick Farms – Scott Kuegel of Daviess County (109.61 bu/acre, tillage). Area 3 Champion was Jamie Summers (106.73 bu/acre, tillage). Area 4 Champion was Homestead Family Farms (97.94 bu/acre, no-tillage).