I was passed on a pdf with this information from a Lanworth representative. Since I'm not sure how to upload a pdf here I'm just going to copy and past the text and plots. As a reminder, Lanworth uses satellite images to estimate crop yields and other useful agriculture information. See my
previous posts for more info. Enjoy:
"
US Spring Crop Production 2008Final Report: 16 January 2009
Corn production: 12,216 million bushelsSoybean production: 2,987 million bushelsThis is Lanworthʼs final report on US corn and soybean production for the 2008 agricultural year.
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It represents Lanworthʼs best estimates of year-end production based on planted acreage, harvested acreage, and modeled crop yields at district and sub-district levels. In its 12 January 2009 Crop Production 2008 Summary report, USDA revised both its corn and soybean production estimates upward by approximately 1%. In doing so, USDA brought its production estimates for both commodities into close agreement with those issued in Lanworth's 21 November 2008 report and, indeed, those issued earlier in the year (Figure 1). To effect its revisions, USDA adjusted acreage and/or yield estimates for most producing states. Because Lanworth accepts USDA acreage estimates for states not mapped by satellite and USDA yield estimates for states not modeled, USDAʼs adjustments do affect Lanworthʼs production estimates, albeit slightly. In what follows we present updated corn and soybean production estimates incorporating USDA revisions in unmapped and unmodeled states. Here Lanworth updates its 2008 US corn production estimate to 12,216 million bushels, a negligible upward revision of roughly 3 million bushels. Lanworthʼs current estimate stands only slightly higher (115 million bushels vs 74,641 thousand).
MethodsTo develop production estimates, Lanworth used planted acres mapped by satellite for 13 key states. Harvested acres for these states were determined by applying harvested fractions derived from the most recent USDA Crop Production report. In flood-affected states (IL, IN, IA, MO), Lanworth calculated harvested acres directly by applying 5 year average harvested fractions to planted acres and then subtracting lost acreage mapped using satellite imagery (see previous reports). For the remaining, unmapped states, Lanworth accepted USDAʼs current harvested acres estimates. Lanworth then allocated harvested acres to districts either directly for satellite-mapped states or, for other states, indirectly using each districtʼs historical share of state planted acres.
For each district in 18 key corn and soybean producing states and 7 spring wheat producing states, Lanworth ran a series of deterministic yield models representing a range of soil, weather, and planting conditions. Model results were weighted and combined to produce representative district yields. For minor states, Lanworth used the projected yields published in USDAʼs most recent Crop Production report. Production was then computed for each district and summarized by state.
Lanworthʼs current production estimates are provided in the accompanying spreadsheet. The data will also be published to http://ray.lanworth.com.
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(click on image)
Contact: Nick Kouchoukos, (630) 250-1428, nkouchoukos@lanworth.com ©2009 Lanworth, Inc. All Rights Reserved"
I think the key here is in these last two plots. The most obvious thing is that Lanworth has clearly been estimating higher yields than the USDA for most of the year aside from some mid August corn reports. And what has the Corn and Soybean market done during this time? It plunged. Of course the agriculture market is driven by both supply and demand but its safe to say that the underestimation of crop yields by the USDA is bearish because supply is turning out to be bigger than anticipated. The second thing I noticed was how erratic the USDA's #'s were relative to Lanworth's estimates. Clearly Lanworth's method yields a more stable estimate which has got to be good for a number of reasons which are mostly beyond me. It seems to me that the actual crop numbers, the reality, is going to be relatively smooth and stable. How rapidly could the actual yield change? Maybe if there was some major flooding or other rare natural disaster, but on average I would think that yields don't make erratic moves like the USDA numbers. I continue to be very impressed by this technology.
Click here to download the original pdf file. Also, find the latest Lanworth related news
here.