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 In Today's eHay Weekly
 May 12, 2009

Balance P And K In Alfalfa Fields
Some CRP Contracts To Be Extended
Scout For Diseases Now
Build A Sprayer Emergency Kit
Numbers Of Note
State Reports: Idaho, Maryland
Wet, Cool Spring May Bring Nematodes
Tennessee Field Day To Be June 11
Calendar Of Events
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Top Of The News

Balance P And K In Alfalfa Fields
A balance of phosphorus and potassium helps keep alfalfa stands healthy, according to recent research at the Throckmorton-Purdue Agricultural Center.

“Alfalfa removes more potassium than any other field crop with the exception of corn silage, so growers need to pay close attention to potassium levels,” says Jeff Volenec, Purdue extension crop physiologist. “An imbalance between potassium and phosphorus fertilizer can actually be more damaging when you apply phosphorus and do not apply potassium. The stand thins out more quickly, which results in added weed encroachment.”

Keith Johnson, Purdue extension forage expert, notes that soil tests done in spring do not accurately reflect the amount of potassium available to plants. If a soil test was not done last fall, Johnson advises doing so after

Click here for more of the story.




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Some CRP Contracts To Be Extended
USDA’s Farm Service Agency (FSA) will offer some producers the opportunity to modify and extend Conservation Reserve Program (CRP) contracts scheduled to expire on Sept. 30.

The agency can extend only about 1.5 million acres out of a total 3.9 million acres expiring this year because the 2008 Farm Bill limits CRP to 32 million acres. A general CRP signup is not scheduled during fiscal year 2009. However, producers may continue to enroll relatively small, highly desirable acreages, including land that is not extended, in Continuous CRP. Continuous CRP includes such practices as filter strips and riparian buffers.

FSA began notifying participants by letter last week. The sign-up for this voluntary extension will begin May 18 and run through June 30. Farmers and ranchers may apply for this extension at their FSA county offices. CRP contracts with the highest environmental benefit or the highest soil erosion potential will be selected. Contract holders will generally be offered three- to five-year extensions. They’ll receive their current contract rental rate. All or a portion of the acreage under contract may be included in an extension, but no new acreage may be added.

For more information about CRP and other FSA programs, go to www.fsa.usda.gov.




Scout For Diseases Now
May’s cool temperatures and frequent rains make this a good time for growers in many parts of the country to check their alfalfa fields for leaf diseases, says XB Yang, Iowa State University plant pathologist. “Knowing the occurrence of alfalfa diseases in early May helps make decisions about the first cutting,” he says. “High levels of alfalfa foliar diseases such as spring black stem can cause early defoliation before you make the first cut, resulting in yield reduction.”

When scouting for diseases, Yang advises keeping the following in mind:

  • Second- and third-year alfalfa fields have greater disease risk than first-year fields. “The diseases may have occurred in the past year and the pathogenic fungi can build up over time,” he explains.

  • Fields in lower spots with high soil moisture have higher disease risk.

  • There are differences in disease tolerance among varieties.

  • Diseases are likely to start in dense canopy on the lower leaves of plants.

    If the disease level is high, Yang recommends early cutting. “Cutting as early as mid-bud stage to avoid severe defoliation may be necessary when the disease is severe,” he says.

    Yang can be contacted at xbyang@iastate.edu. Or call 515-294-8826.




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    Build A Sprayer Emergency Kit
    Rig field sprayers with emergency kits for handling leaks and/or spills, advises Jim Wilson, pesticide applicator training specialist with South Dakota State University.

    A kit includes extra hoses, hose clamps, a set of protective clothing, electrician’s tape, duct tape, washer-head screws and caulking compound.

    Wilson also recommends putting a plastic tarp in the kit. If the sprayer forms a leak, you can spread the tarp underneath the sprayer and use dirt to build a berm at the edges so there’s a pocket or depression in the middle to catch fluid. “That may serve to contain the spray and eliminate the problem with soil contamination until you have time to stop the leak and get it repaired,” he says.

    Critical replacement parts, absorbent materials, plastic bags and a shovel can round out an emergency kit. For information on preventing and managing pesticides spills, download Handling Pesticides Properly at agbiopubs.sdstate.edu/articles/ExEx8109.pdf.




    Numbers Of Note
    $1-1.20/lb Price processors are offering Alberta seed growers for common alfalfa seed, according to the May 4, 2009, Grass and Legume Seed Market Update. Published by the province’s Ministry of Agriculture and Rural Development, it reports that “the grass and legume seed sector has not seen a dead season like this in quite some time, if ever.” To see the entire update, go to www1.agric.gov.ab.ca/$department/newslett.nsf/all/glm14995.

    $10 Price the Midwest Forage Association (MFA) charges members for PEAQ (Predication Equations for Alfalfa Quality) sticks. The non-member price is $15/stick. To learn more about using the PEAQ stick as a tool for scheduling harvest to achieve forage-quality target levels and/or for details on ordering, go to the MFA Web site at www.midwestforage.org.

    1,090 Fires occurring annually in U.S. barn structures between 2002 and 2005, according to a report from the National Fire Protection Association. The barn structure category includes livestock, poultry and storage barns, stockyards and animal pens. To download a fact sheet based on the report, go to www.nfpa.org/assets/files/PDF/BarnsFactSheet.pdf.

    20,000 U.S. farms (approximately) engaged in organic production, according to the 2007 Census of Agriculture. USDA hopes to learn more specifics about production, marketing, income, expenses, etc., this spring with a first-ever survey of organic farmers. Organic producers have been asked to complete the survey by June 17. Results will be published later this year. For more information about the survey, visit www.agcensus.usda.gov/Surveys/Organic_Production_Survey/index.asp or call 800-727-9540.

    $10 million Estimated value of fencing damaged or destroyed in the 45,000-acre wildfire that swept through Montague County, TX, last month. For details on efforts to help ranchers affected by the fire, see “Hay Needed In Texas Fire Aftermath” in last week’s eHay Weekly.




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    State Reports: Idaho, Maryland

    Idaho
    Cold weather this spring is likely to delay first-crop alfalfa harvest in many parts of the state, reports University of Idaho extension forage specialist Glenn Shewmaker.

    “Ordinarily, we’d have people in southern Idaho doing some greenchopping right now in order to put up some fresh feed,” he says. “But our temperatures have been running 5-6 degrees below normal, and that’s put us behind on growth. In some areas, we might be lucky to get our first cutting in by Memorial Day. People who put it in pits or bags will have some options. But people putting up dry hay will have some challenges. It’s going to be one of those years.”

    Shewmaker also notes there was more winterkill than normal in many parts of the state this year. “We had good snow cover in general,” he says. “But the plants were slow to come out of dormancy. Part of that could be due to cold weather. But we also seem to be seeing more problems with clover root curculio (a weevil that feeds on lateral roots).”

    Slumping milk prices also remain a concern for alfalfa growers, he says. “Growers realize dairy producers are struggling. But, while they understand the need to keep those dairy customers in business, most growers also say they have to get more than $120-150/ton to cover their cost of production and be competitive with other crops. Also coming into play is that we have some carryover supplies from last year. There are a lot of serious negotiations going on between sellers and buyers right now.”

    To contact Shewmaker, call 208-736-3600 or email gshew@uidaho.edu.


    Maryland
    The heavy rains during the first several days of the month represented a case of good news/bad news, says Les Vough, University of Maryland extension forage specialist emeritus.

    On the upside, rainfall amounts were sufficient to end a late winter-early spring drought affecting many parts of the state. “Heading into the weekend, some areas were as much as 7” below normal for precipitation,” says Vough. “As of last Tuesday morning, though, officials were reporting that, with these recent rains, the drought had ended for the entire state.”

    Even so, the return of abundant moisture carried negatives, too. “Some growers had already started on first cutting and anything that was laying is pretty thoroughly washed at this point,” Vough says.

    Long-term weather records show May 5-11 is typically the low point for average precipitation in many parts of the state during May, he points out. “We first noticed that a few years back and have been telling producers that this is the week they should plan on making hay. That wasn’t the case this year.”

    At the same time, the earlier stint of dry and cool weather could hamper yields. “From what I’ve seen at different spots around the state, orchardgrass is coming in head but only about knee-high,” Vough reports. “It should be about hip-high. First-cutting yields will be short if growers cut when they should for best quality. If they wait for more growth, we will just be adding to the amount of average- or mediocre-quality first-cutting hay already in the barns from last year.”

    Vough says a large supply is putting downward pressure on average- to low-quality hay. “For the last three years, we were so short of hay you could sell anything. But because of our weather last year, there was a lot of just average hay put up. As a result, there are parts of the state where barns are still full and growers are having trouble finding markets. On the other hand, any growers who have really good-quality hay are not having any problems selling it. It’s gone.

    “Right now, it looks like this could be another difficult year for many Maryland hay growers,” says Vough. Contact him at 301-405-1322 or vough@umd.edu.




    Insect Update

    Wet, Cool Spring May Bring Nematodes
    With a cool, wet spring in Michigan this year, alfalfa growers should be on the lookout for stem nematodes, says Fred Warner, diagnostician with Michigan State University’s Diagnostic Services.

    Generally regarded as alfalfa’s most serious nematode threat, stem nematodes have been reported in all areas where alfalfa is grown. “They tend to be more of a problem in fields with heavy soils, on irrigated sites or in seasons with heavy spring rains,” says Warner. “Red and white clovers are also hosts.”

    The nematodes can be spread by infested seed, irrigation water and machinery contaminated with infested crop debris and soil, Warner notes. “Water is necessary for new infestations because the nematodes move in water films on stems and leaves.” Plants are weakened or killed, and infested stands may decline in less than two years. The nematodes can also cause alfalfa to be more susceptible to bacterial, fusarium and verticillium wilts.

    No control options are available in established alfalfa, but resistant varieties help control the nematodes, Warner says. “Rotation to non-host crops such as corn and small grains for two to four years is required to reduce population densities of the alfalfa stem nematode.

    “While examining alfalfa stands this spring, if any appear unthrifty and the plants have very shortened internodes, you should collect leaves and stems for nematode analyses and send them to MSU Diagnostic Services,” he says. It costs $25 for a nematode analysis for Michigan growers. Typically, results will be available in seven to 14 days. Out-state samples are also accepted but triple the cost.

    An added note: Stem nematodes typically occur at very low population densities in the soil. They prefer to stay in old plant tissue until they locate new hosts. “Therefore, it is critical, for proper diagnoses of this particular nematode, to collect leaves and stems from actively growing plants to avoid potential false negatives that may result from only submitting soil or even roots to the lab,” Warner says.

    To contact Diagnostic Services, call 517-355-4536 or visit www.pestid.msu.edu.




    Events

    Tennessee Field Day To Be June 11
    Cattle management and hay production seminars will be the order of the day at the University of Tennessee’s 2009 Beef and Forage Field Day on June 11. It will be held at the Blount Unit of the East Tennessee AgResearch and Education Center near Knoxville.

    Along with presentations on pasture management, weed control, fuel and fertilizer costs and soil testing, the event will feature a trade show, youth program and lunch.

    Preregistrations are encouraged by June 4. Contact a local county UT Extension office, call the center at 865-974-7201 or visit east.tennessee.edu for more details.




    Calendar Of Events
    May 16 -- Northeast Washington Hay Growers Association Spring Field Day, Hagen Cattle & Hay Co., Chewelah. For details, phone 509-725-4171.

    May 26 -- University Of Tennessee Forage Conference, West Tennessee Research and Education Center, Jackson. Sponsored by University of Tennessee Extension and Tennessee Forage and Grassland Council. Conference starts at 3:30 p.m. Contact Brian White at 731-968-5266 or dwhite3@tennessee.edu, or Gary Bates at 865-974-7208 or gbates@utk.edu.

    June 10-11 -- Four-State Dairy Nutrition And Management Conference, Grand River Center, Dubuque, IA. To register online or download a conference brochure, go to www.wasa.org or contact the Wisconsin Agri-Service Association at 608-223-1111, or Dale Thorsen at 319-267-2707.

    June 21-23 -- American Forage & Grassland Council Annual Conference, Amway Grand Plaza Hotel, Grand Rapids, MI. Call 800-944-2342, email info@afgc.org or visit www.afgc.org/mc/page.do.

    June 25 -- University of Tennessee Tobacco, Beef And More Field Day, Highland Rim AgResearch and Education Center, Springfield. Call 615-382-3130 or visit taes.utk.edu/event/show.asp?which=403.

    June 27 -- 2009 Equine Field Day, University of Kentucky’s Maine Chance Equine Campus, Lexington. Phone 859-257-2226 or go to www.uky.edu/Ag/Forage/EquineFieldDayFlieremail.pdf.

    July 23 -- University Of Kentucky All Commodity Field Day, UK Research and Education Center, Princeton. Details forthcoming at www.uky.edu/Ag/Forage/.

    July 29-30 -- U.S. Dairy Forage Research Center Getting More From Forages Conference, Monona Terrace Community and Convention Center, Madison, WI. Visit www.dfrc.ars.usda.gov/forages/Program.html for more details.

    Aug. 1-2 -- Florida Small Farms And Alternative Enterprises Conference, Osceola County Heritage Park, Kissimmee. Go to smallfarms.ifas.ufl.edu/floridasmallfarmsconference/index.htm.

    Aug. 27 -- 2009 Arlington Agronomy And Soils Field Day, University of Wisconsin Agricultural Research Station, Arlington. (Agenda details will be available in early May.)

    Sept. 17-19 -- National Hay Association Convention, Cadillac Jack’s Gaming Resort, Deadwood, SD. Contact Don Kieffer at 800-707-0014 or visit www.nationalhay.org.

    Sept. 29-Oct. 3 -- World Dairy Expo, Alliant Energy Center, Madison, WI. Visit www.worlddairyexpo.com.

    Oct. 29 -- Kentucky Grazing Conference, University of Kentucky Research and Education Center, Princeton. Details available soon at www.uky.edu/Ag/Forage.

    Nov. 10-11 -- BEEF Quality Summit, Stoney Creek Inn, St. Joseph, MO, hosted by BEEF magazine. Visit beefconference.com.

    Nov. 18-19 -- McCook Farm And Ranch Expo, Red Willow County Fairgrounds, McCook, NE. Visit mccookfarmandranchexpo.net or call 866-685-0989.

    Dec. 13-16 – Fourth National Conference On Grazing Lands, Reno, NV. Presented by the Grazing Lands Conservation Initiative. Visit www.glci.org.

    Feb 16-17, 2010 -- Idaho Hay And Forage Conference, Best Western Burley Inn, Burley. Contact Glenn Shewmaker at 208-736-3608 or gshew@uidaho.edu.



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