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  • Latham Hi‑Tech Seeds

    Month-Long Window for 95% Yield Potential

    Despite the trend of farmers planting earlier and earlier, research results recently released by Iowa State University Extension agronomists show that farmers have nearly a month-long window to plant their crops and still realize 95 percent of the crop’s yield potential. The optimal start dates to begin planting corn, according to this study, range from April 11 in southern Iowa to April 15 in northwest Iowa.

    ISU agronomists conducted research on seven sites for three years – 2006, 2007 and 2008 – for a total of 21 site-years. Based on yield data obtained, recommendations have been developed to achieve maximum yield possible in relation to planting date for each of three regions across the state. Each region had a different window of time that optimized the yield, on average. A summary of these windows, as published in Integrated Crop News, follows:

    Northeast region (red):
    This region has the narrowest planting window due to the need to maximize the length of the available growing season. Grain yields begin to drop off more significantly here than the rest of the state if plantings are too late. We recommend planting between April 12 and May 2 (95-100 percent yield window) or between April 12 and 30 (98-100 percent yield window). The dataset is limited for plantings before April 12 in this region, hindering our ability to make recommendations prior to this date.

    Northwest and central region (yellow):
    This region has a flatter yield response to planting date than the other regions. In other words, planting date does not appear as important of a management practice here as in other parts of the state. We recommend planting between April 15 and May 18 (95-100 percent yield window) or between April 15 and May 9 (98-100 percent yield window). Again, information for this dataset is limited for plantings before April 15 in this region, diminishing our ability to make recommendations prior to this date.

    Southern region (blue):
    The yield response in this part of the state is presumably related more closely to rainfall patterns and soil moisture than the length of the growing season since this typically is not a limitation as it is in the northern part of the state. We recommend planting between April 11 and May 13 (95-100 percent yield window) or between April 17 and May 8 (98-100 percent yield window).

    An expanded article, with more detail specifically on the methods behind this project and the development of recommendations can be found on the ISU Corn Production website.

    Webspec Admin

    April 20, 2010
    General, Season, Spring
  • Latham Hi‑Tech Seeds

    Just how fast is too fast?

    A big thank you to all of the Farmers for the Future members who responded to our recent question, “Just how fast is too fast?” in regards to planting.

    Corn and soybean plants are subject to more than 1,000 variables each growing season. Proper planting is the most crucial variable and can have the most impact on performance. Below is a chart that shows the differences of seed placement when traveling 5.5 mph and 6.5 mph.


    Many of the members who responded to the question answered that they think it’s best to take your time when planting, as the benefits for a slower speed will be present at harvest. They couldn’t be more right.

    If you have any questions we can help answer regarding planting, please let us know. Also, if you’re looking for tips and information on spring planting, please take a moment to read our recent blog posts on planting preparation:

    Planter Preparation

    Top 5 Tips to Maximize yield

    Tips to Deal with Soil Compaction

    Top 10 Reasons to Avoid Soil Compaction

    Team Latham

    April 7, 2010
    General, Season, Spring
  • Latham Hi‑Tech Seeds

    Planter Preparation

    There are many things that require your attention as you prepare to head back into the fields, but one of the more important things you can do is get your planter well prepared for planting.

    Below is a check list of important steps to take when preparing your planter for the field:  

    1. Check the drive trains; make sure they are not rusted or stiff.
    2. Check the shaft bearings and sprocket bearings for their shape and condition. They should be well lubricated.
    3. Clean and inspect the chemical meters used for seed treatments on the planter.
    4. Check the opener blades; make sure they are not worn.
    5. Check the sprocket teeth for wear.
    6. If equipped, make sure the vacuum meter system is clean and seals are not worn to ensure proper metering.
    7. Use the owner’s manual extensively for calibration.
    8. Follow all hourly service requirements and greasing requirements.
    9. Stop by the dealer or visit the equipment manufacturer’s web site to learn what is new.
    10. In the field, dig to expose seeds in the row to be sure the planter is operating correctly. This may help avoid an erratic stand after emergence. Confirm desired seed depth and seed-to-soil contact.

    For other important tips as you prepare for planting, see our blog, Planting Preparation, (you’ll need to scroll down a bit) and as always, please post any questions you might have that we can help with in the field below.

    Team Latham

    March 29, 2010
    General, Season, Spring
  • Latham Hi‑Tech Seeds

    Planting Preparation

    Corn and Soybean Digest’s February issue included a story titled, “When bad things happen to good seeds.” The article discussed how an early spring bed isn’t an ideal situation for seeds and how avoiding germination and emergence problems can boost yields. 

    “We put our expensive seeds into an environment that’s stressful,” says Bill Wiebold, University of Missouri Extension plant scientist. “Unfortunately, a number of bad things – including things other than diseases and insect pests – can happen to high-quality seeds.”

    We asked our own Mark Grundmeier, seed product manager, about his thoughts.

    “The trend has been to plant earlier and earlier over the past decade. While this practice — in general — has increased yields, there are some pitfalls to watch for and avoid. Farmers should avoid planting into soils that are too wet. This practice always causes problems later due to side-wall compaction and/or uneven emergence. When planting soybeans into cool soils, farmers should consider the use of a fungicide seed treatment such as Latham SoyShield to prevent the advent of seedling diseases.”

    The article contained a number of good tips for planting preparation:

    1. Monitor soil temperature. Wait to plant until the soil temperature is 50° F, lowering your risk of poor emergence.
    2. Avoid compacting the soil. Delay tilling and planting until the soil is dry enough to minimize compaction.
    3. Make sure your planter is well tuned. It should open the seed furrow without sidewall compaction.
    4. Stop the planter often and look. Make sure you are getting uniform seed depth and good seed-to-soil contact.

    Click here to read the full article.

    Please let us know if you have any questions we can help with.

    Team Latham

    February 22, 2010
    Fall, General, Season, Spring
  • Latham Hi‑Tech Seeds

    How cool temperatures and rain affected Iowa’s 2009 growing season

    Rich Pope, Program Specialist at the Iowa State University Extension (ISU) Department of Plant Pathology recently provided a recap of the unusual temperatures and rainfall that affected Iowa’s 2009 growing season.

    Temperatures in July, August and October were very cold compared with historical records, Pope said. July ranked the coldest July on record, while October ranked in the coldest five. The cold temperatures were consistent throughout Iowa, with northwest and central Iowa faring only slightly better than the remainder of the state.

    While most of Iowa saw average rain fall, east central and southeast Iowa saw above average rain from July forward. There were exceptions with summer thunderstorms that brought heavy rain to small areas, Pope noted. Two of these storms brought devastating hail that destroyed crops as well as causing additional damage. The first storm occurred July 24, making its way from Calmar in Winnesheik County to Western Dubuque. The second storm was incredibly strong, stripping crops from Ida to Grundy County, causing particularly intense damage in Hardin County near Eldora and Callendar in Webster and Calhoun Counties. ISU researchers have been analyzing damaged ears from these areas for ear rots and potential mycotoxin formation.

    To read more and view pictures taken by NASA of the damaged areas, click here.

    Team Latham

    December 29, 2009
    Fall, General, Season, Spring, Summer
  • Latham Hi‑Tech Seeds

    Weekly Weather and Crop Bulletin – Week Ending June 27

    Here’s the latest planting update excerpted from the June 30 USDA National Agricultural Statistics Service bulletin (for week ending June 27):

    Corn: Nationally, 4 percent of the corn crop was at or beyond the silking stage, 1 point behind last year amasthead_logo7nd 4 points behind the 5-year average. The most crop development had occurred in North Carolina and Texas, while silking had yet to begin in the Great Plains, Corn Belt, and Ohio Valley regions. Overall, 72 percent of the corn crop was rated in good to excellent condition, 2 points better than a week ago and an 11 point improvement from 2008.

    Soybeans: Ninety-six percent of the 2009 soybean crop was planted by week’s end, 1 point ahead of the pace a year ago, but 2 points slower than the average. Emergence advanced 7 points during the week to 91 percent complete, 2 points ahead of the previous year, but 4 points behind the 5-year average. Aided by mostly sunny skies and above average temperatures, the most rapid crop development was evident in Tennessee, where 17 percent of the crop emerged during the week. Blooming, at 5 percent complete, was on par with the previous year, but 5 points behind normal. The crop was most advanced in the Delta, with Mississippi leading all States with 59 percent of the soybean acreage at or beyond the blooming stage. Sixty-eight percent of the crop was rated in good to excellent condition, compared with 67 percent last week and 58 percent a year ago.

    Team Latham

    July 3, 2009
    Season, Spring
  • Latham Hi‑Tech Seeds

    Weekly Weather and Crop Bulletin- Week Ending May 31

    Here’s the latest planting update excerpted from the June 2 USDA’s National Agricultural Statistics Semasthead_logo4rvice (for week ending May 31):

    Corn: Producers planted 93 percent of the corn crop by week’s end, only one point behind last year’s pace, and 4 points behind the average. Planting was complete in Nebraska and North Carolina. Some favorable fieldwork days in Illinois, Indiana, North Dakota, and Ohio allowed planting to advance by 20 or more percentage points. In these States, except Ohio, planting lagged between 13 and 17 points behind the average due to saturated soil earlier in the season. Emergence, at 73 percent, was 13 points behind average, nationally. Although corn emergence advanced more than 29 points last week in much of the Corn Belt, development lagged significantly behind the 5-year average. The corn crop was rated 70 percent good to excellent.

    Soybeans: Sixty-six percent of the acreage was seeded by May 31, slightly behind last year and 13 points behind the 5-year average. Producers in Ohio were able to plant 40 percent of their acreage during the week. Emergence, at 36 percent complete, progressed 19 points during the week, 6 points ahead of last year’s development pace, but 15 points behind the average. Following a surge in planting progress the previous week, development in Iowa, Minnesota, and Nebraska reached 59, 57, and 73 percent emerged, respectively. Illinois corn development lagged behind the average by 54 points, following a delay in planting.

    Team Latham

    June 4, 2009
    Season, Spring
  • Latham Hi‑Tech Seeds

    Weekly Field Report

    Central Iowa
    Bart Peterson reports that corn is 100% planted in his area, with seedlings ranging from the V1 to V4 stage of growth. Soybeans are 98% planted, with seedlings ranging from the VE to V1 stage. He hasn’t seen any insect pressure at this time.

    Northeast Iowa
    Tom Larson says that planting finished last week in the western part of his territory, while planting is just getting underway in the eastern part. Plots went in fast and furious. By the end of the weekend, there were just a few areas that still have beans to plant. A few acres of corn were replanted in areas where the ground was wet to start with and then developed a crust on top. Frost also set back some corn acres. He also has noticed some Pythium in soybean acres where seeds were planted in less than ideal conditions; a seed treatment on those early-planted acres would have helped.

    Central Iowa
    Bob Collins reports that planting is almost finished in his area. Most of the corn is up and looking good.  A few early planted bean fields are up, too. He’s not aware of any insect problems yet, but some of the corn needs to be sprayed to control the grasses.

    Northwest Iowa
    Bruce Anderson says planting is 99% complete with corn coming up well with good stand. The soil has a good amount of moisture accumulated, which will help in July.  Spraying will begin soon with as some grass is growing at the end of corn rows.

    West Central Iowa
    Planting is pretty much complete in Travis Slusher’s territory.  Corn is looking good and he hasn’t yet seen any insect pressure. In the southern part of his territory, fields received about an inch of rain this past week.  Those in the northern part received about three inches of rain.

    Eastern Iowa
    Corn planting is 99% complete and beans are 95% complete in Brad Beatty’s territory. Emergence has been good for both corn and soybeans. He hasn’t noticed any insect pressure yet, but he says they’re probably a week out from seeing cut worm. He also says it’s time to get out and start scouting for weeds, so you can keep them under control.

    East Central Iowa
    Wayde McNeil’s territory of Jasper, Poweshiek, Marshall, and Tama counties has received anywhere from one to three inches of rain this past week. Planting is complete, and the corn and beans are growing well. He hasn’t yet noticed any insect pressure.

    South Dakota
    Bill Eichacker says the southeastern part of the state is pretty much finished with planting while  the northern part is struggling to get seeds in the ground because due to the wet spring and flood waters from North Dakota.  For those farmers who have been able to plant, it’s time to scout for black cut worm and take care of any weed problems.

    Minnesota
    Jason Obermeyer reports that corn planting is done. He says that emergence is good on most fields, though the fields with high amounts of trash look a little more uneven due to cooler soils. Soybean planting is nearly finished. The cold snap about 10 days ago dinged some soybean fields that were emerged, mostly in areas of lower elevations, so sporadic replants may need to be done. Post emerge spraying on corn will begin in earnest this week.

    Nebraska
    Brian Banks reports that corn is up to 4 leaf in areas.  Some post herbicide applications are under way. Soybeans are up to unifoliate, but most are just emerging.  There may have to be some replanting of soybeans this year, but definitely not for the reasons we had last year.  Some beans had enough moisture to sprout but then the high temps and 40 mph winds last week dried them out so bad that stands are thin. Rains have continued to be spotty. Isolated areas get some rain but overall eastern Nebraska is well below average for rainfall. Many growers are running pivots to get the beans up and to keep the corn from drying up already.

    Larry Sailer, Musings of a Pig Farmer

    May 29, 2009
    Season, Spring
  • Latham Hi‑Tech Seeds

    Weekly Weather and Crop Bulletin- Week Ending May 24

    Here’s the latest planting update excerpted from the May 27 USDA’s National Agricultural Statistics Service (for week ending May 24):

    Corn: By week’s end, 82 percent of this year’s corn acreage was planted, 4 points behind last year and 11 points behind the 5-year average. The largest push in progress was made in Illinois, where producers took advantage of warm, sunny conditions and planted 42 percent of their crop during the week. Emergence advanced to 52 percent complete, 4 points ahead of the previous year, but 19 points behind normal. Under favorable growing conditions, the most development was seen in Minnesota and Nebraska, with 31 percent of the crop emerging in both States.

    Soybeans: Forty-eight percent of the Nation’s soybean crop was planted by May 24, one point slower than last year and 17 points behind normal. The most rapid progress was made in Iowa and Wisconsin, where producers planted 39 and 32 percent of their acreage during the week, respectively. By week’s end, 17 percent of this year’s crop had emerged, compared with 12 percent a year ago and 31 percent for the 5-year average. The most development was evident in the Delta States of Mississippi and Louisiana, where emergence had reached 73 and 64 percent, respectively.

    Team Latham

    May 28, 2009
    Season, Spring
  • Latham Hi‑Tech Seeds

    Planting report from our new intern

    Hi all. I want to introduce our intern for this summer, Andrew Kilburg. We look forward to Andrew’s weekly reports from the field.  —  Shannon

    I am Andrew Kilburg and I just completed my sophomore year at Iowa State. I am majoring in Agronomy andcorn-planting Agriculture Systems Technology, and this summer I will be an intern at Latham Hi‑Tech Seeds. One of my duties will be posting weekly blog updates on planting progress for corn and beans, stages of growth, and any weed or pest issues.

    It sounds like central Iowa is pretty close to completing corn planting, and has a good start on getting the beans planted. Travis Slusher says “they need a day or two to finish up with planting corn.” Central Iowa has received rain this past week which has kept farmers from the fields.

    In northwest Iowa, progress sounds good. Bruce Anderson says“95% of corn is in the ground and 80% of beans are planted.” Growth of corn also looks good in NW Iowa with 75% of the corn up and able to be rowed. Sounds like there isn’t any insect problem yet, but Bruce has heard there is a possibility of cut worms that could hatch around the 22nd of May. He also says that alfalfa and pastures are growing great. He said the forecast for next week looks to be in the 70’s with a couple days is in the lower 80’s.

    Jeff Weier in Western Iowa has reported that planting progress is coming along great. He says “99% of corn is planted with 30-40% of the corn being in the V2 stage of growth”. He also said “the beans are about 50-60% planted, and if the weather holds out this week farmers could begin to finish up with beans.” He hasn’t seen any bug or disease issues yet.

    In Wayde McNeil’s territory of Jasper, Poweshiek, Marshall, and Tama counties in Iowa, corn planting is pretty much 100% done with most of the corn in the V1 stage and some in the V2 stage. The beans in his territory are 80% planted. He hasn’t seen any bug or disease problems yet. On Sunday May, 17 he said there was a slight frost, but didn’t cause any damage.

    In Eastern Nebraska Brian Banks is saying the bean planting is coming along good with a few spotty rain showers keeping some farmers out of the fields. He says “that some beans are starting to emerge this week, and if things go well most farmers will be finishing up this week. Most of the corn is in the V2 stage.” He hasn’t seen any bug, disease, or weather related issues yet. He did say “they are a little behind average with GDD’s at this time.

    In South Dakota Bill Eichacker is reporting that planting is happening earlier than previous years, although the northern part of the state is lagging behind due to flooding and rains.

    Bob Colins in Central Iowa reported that corn is pretty much all in the ground and beans will be finishing up in 2-3 days. He hasn’t seen any bug or disease issues at this time.

    Brad Beatty around Benton County reported that 95% of corn is planted and 60% of beans are planted. The biggest issue in his territory is the cold soil temperatures. He said “some of the corn is rotting instead of growing, so farmers will have to evaluate to see if they need to replant.” With the cold weekend we just had he thought that most of the corn should be fine, but the few beans that have already emerged will also have to be evaluated to see if replanting is necessary.

    Jason Obermeyer in Minnesota reported that all corn planting is done and beans should be finishing up this week. He hasn’t noticed any widespread bug or disease issues. Most of the corn has emerged, and all they need is some warmer temperatures to help with growth.

    Team Latham

    May 19, 2009
    Season, Spring
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(641) 692-3258

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