Brief Summary of Minutes of Annual Meeting

The NEC 1007 soil testing work group hosted a joint meeting with the NCR 13 and the SERA 6 soil testing work groups. The meeting was held in the Howard Johnson Motel near the University of Delaware in Newark, Delaware. State and subcommittee reports were presented and discussed. A. Dobermann was confirmed as chair (2004-2006), D. Warncke as Chair Elect (to be Chair 2006-2008), and S. Brouder as Secretary (to be Chair Elect in 2006-2008, and Chair in 2008-2010). The next NCR 13 meeting will be in conjunction with the North Central Extension  Industry meeting in November, 2005. Committee Assignments remain the same as listed in the February, 2004 meeting minutes. The Four State Meeting (Illinois, Iowa, Minnesota, Wisconsin) will be held February 24 and 25.

Subcommittee Reports: QA/QC: The manuscript on QA/QC protocol is complete and has been sent to Tony Provin at Texas A & M for publication. This manual has been a cooperative effort of the NAPT Committee and the various regional Soil Test Working Groups. Education: The Seventeenth Soil  Plant Analysts Workshop was held on February 24 and 25 in Des Moines, Iowa. Thirteen speakers made 15 presentations. Attendance was 70. Income was $4,058.10. Expenses were $4,800.88. A balance of $800 was carried over from the 16th Workshop. This leaves a balance of $57.22 in the NCR 13 Workshop account with the Soil and Plant Council. Evaluations of the Workshop were quite positive. By holding the Workshop in February we reached more of the actual soil testing lab people than when it was held in November. Interstate: Darryl distributed copies of the new MSU Nutrient recommendation bulletin (E 2904) which uses the Tri-State (Michigan, Ohio, Indiana) format. Rehm reported that Minnesota and the Dakotas have updated their Tri-State recommendation publication. There is reasonable uniformity of N recommendations for corn across Illinois, Iowa, Minnesota and Wisconsin. In a recent meeting there was agreement on new concept, based on soil productivity, for N recommendations. Waste: The evaluation of various potential laboratory measurements of water soluble P is ongoing at several locations in the region as well as in other work groups. Currently, there are two primary methods for analyzing manure water extractable P (WEP). One developed in PA by Pete Kleinman of the USDA-ARS with assistance from others Andrew Sharpley, Doug Beegle and Ann Wolf) and one developed in Arkansas by Phil Moore. The methods vary in the solids:solution ratio (1:10 for the AK method, 1:200 for the PA method) and in sampling basis (wet weight for AK, dry weight for PA). There are some concerns/issues with both methods. Concern with the AK method is that the solids (dry):solution ratio varies and impacts the ability of this test to predict runoff P over a wide range of manures. Concern with the PA method is that it is difficult to take a large enough sample size for manures with high variability (e.g. poultry manures with large wood chips) and get a representative sample. Much work has been performed on the PA method to evaluate variability and factors impacting the analysis. One of the SERA-17 working groups will be continuing the work this year to further look at solid:solution ratio and its impact on estimates of dissolved reactive P as well as other factors impacting WEP measurement (ICP vs. color, shaker type, etc.). The goal is to complete this work by the SERA-17 meeting next year. The Waste Subcommittee will evaluate these methods to determine if one or more should be added to the methods manual. The URL for the web based publication A3769, Recommended Methods of Manure Analysis (http://uwlab.soils.wisc.edu/pubs/A3769.pdf) was changed this past spring due to problems with the previous host site. No revisions have been made to the original version of the manual as of this time. State Reports: See Minutes.

Journal papers: Adamchuk, V.I., E. Lund, B. Sethuramasamyraja, M.T. Morgan, A. Dobermann, and D.B. Marx. 2005. Direct measurement of soil chemical properties on-the-go using ion-selective electrodes. Computers and Electronics in Agriculture 48, 272-294. Agehara, S. and D. D. Warncke. 2005. Soil moisture and temperature effects on nitrogen release from organic nitrogen sources. Soil Sci. Soc. Am. J. 69: 1844-1855. Franzen, D.W. 2004. Delineating nitrogen management zones in a sugarbeet rotation using remote sensing  A review. Journal of Sugar Beet Research 41:47-60. Franzen, D.W., J. F. Giles, L.J. Reitmeier, A.J. Hapka, N.R. Cattanach, and A.C. Cattanach. 2004. Use of whole field research to change farm management practices. J. Nat. Resour. Life Sci. Educ. 33:161-165. Nelson, K. A., Motavalli, P. P., and M. Nathan. 2005. Response to No-Till Soybean [Glycine max (L.) Merr.] to Timing of Preplant and Foliar Potassium Applications in a Claypan Soil. Agron. J. 97:832- 838. Peters, J. B., K. A. Kelling, P. E. Speth and S. M. Offer. 2005. Alfalfa Yield and Nutrient Uptake as Affected by pH and Applied K. Communications in Soil Science and Plant Analysis. 36:583-596. Ping, J.L. and A. Dobermann. 2005. Processing of yield map data. Precision Agric. 6, 193-212. Rehm,G.W.,and J.A. Lamb. 2004. Crop yield and soil test potassium in a ridge-till planting system as influenced by rate and frequency of deep banded potassium. Soil Sci. Soc Amer J. 68:339-345. Schmitt, M.A., G.W. Randall,J.A. Lamb and G.W. Rehm. The University of Minnesota Supplemental Fertilizer NitrogenWorksheet. J of Extension. www.joe.org/joe/2005june/tt4.shtml Verma, S.B., A. Dobermann, K.G. Cassman, D.T. Walters, J.M.H. Knops, T.J. Arkebauer, A.E. Suyker, G.G. Burba, B. Amos, H.S. Yang, D. Ginting, K.G. Hubbard, A.A. Gitelson, and E.A. Walter-Shea. 2005. Annual carbon dioxide exchange in irrigated and rainfed maize-based agroecosystems. Agricultural and Forest Meteorology 131, 77-96. Book chapters, conference proceedings & selected extension publications: Dobermann, A., D.T. Walters, F. Legoretta, T.J. Arkebauer, K.G. Cassman, R.A. Drijber, J.L. Lindquist, J.E. Specht, and H.S. Yang. 2005. Unlocking the secrets of carbon and nitrogen cycling in continuous corn and corn-soybean systems. In L.S. Murphy (ed.) Proc. 2005 Fluid Forum, Vol. 22 [CD-ROM]. Fluid Fertilizer Foundation, Manhattan, KS. Fairhurst, T., A. Dobermann, and C. Witt. 2005. Fertilizer Chooser [online]. Available at soilfertility.unl.edu, www.seap.sg, and www.irri.org/science/software/fertchooser.asp (accessed Sep 1, 2005). University of Nebraska-Lincoln, PPPI/PPIC and IPI, IRRI, Lincoln,NE, Singapore, Los Banos (Philippines). Franzen, D.W. 2004. North Dakota fertilizer tables and equations. SF-882 (revised). Franzen, D.W. 2004. Fertilizing flax. SF-717 (revised). Franzen, D.W., M. Anfirud, and P. Carson. 2005. Sugarbeet rooting depth. p. 105-108. In 2004 Sugarbeet Research and Extension Reports. Vol. 35. Sugarbeet Res. and Ed. Bd. of MN and ND. Franzen, D.W., G. Wagner, and A. Sims. 2004. Application of a ground-based sensor to determine N credits for sugarbeet. p. 119-123. In 2004 Sugarbeet Research and Extension Reports. Vol. 34. Sugarbeet Res. and Ed. Bd. of MN and ND. Franzen, D.W. 2004. Flax fertility recommendation changes in North Dakota. p. 144-150. In Proceedings North Central Extension-Industry Soil Fertility Conference, Nov. 17-18, 2004, Des Moines, IA. Potash & Phosphate Institute, Brookings, SD. Gelderman, R, J. Gerwing, and R. Burrows. 2005. Fertilizing Gardens in South Dakota. B744. Ag. and Biol. Sciences and Coop. Ext. Ser., Brookings, SD. Gelderman, R, K. Reitsma, and J. Gerwing. 2005. Recommended Soil Sampling Methods for South Dakota. SD Dept. of Agric. and SDSU Coop. Ext. Ser., Brookings, SD. Gelderman, R. 2004. Soil and Water Research. Plant Science Pamphlet no. 21. Annual Progress Report. Ag.Expt.Sta. SDSU, Brookings, SD Gerwing, J, and R. Gelderman. 2005. Fertilizer Recommendations Guide. EC750. Coop. Ext. Ser. SDSU, Brookings, SD. Motavalli, P.P., K. Nelson, G. Stevens, A. Kendig, M. Nathan, and D. Dunn. 2004. Selection of foliar-applied potassium fertilizer sources and rates of application to optimize soybean response and weed control with glyphosate in a weed and feed management system. pp. 11-12. 2004 Field Day Report of the Greenley Memorial Research Center. University of Missouri, Novelty, Missouri. Nathan, M. 2005. Reagents and Standards. Chapter 5. In. Quality Assurance and Quality Control Procedure Manual for Soil Testing Labs. Ed. Maurice Watson. North American Proficiency Testing. SSSA Special Publication. In print. Nathan, M., 2005. Steps in Fertilizing Garden Soil: Vegetables and Annual Flowers. MU Guide G 6950. University of Missouri Extension Publications. Nathan, M. 2004. Soil Testing for Lawns & Gardens  Spring is the Time to Test Your Soils Missouri Environment and Garden. Vol.10: NO 3. Nathan, M.. 2004. Chapters: (i) Soils; (ii) Plant Nutrition; (iii) Soil Testing. In: Master Gardner Core Manual, University of Missouri Extension Publication.. Nathan, M. 2004. Soil Testing for Better Lawns and Gardens. Missouri Environment and Garden. Volume 10: No 9. Peters, J. B. 2004. Trends in Feed and Manure Phosphorus. New Horizons in Soil Science, No. 3-2004, Department of Soil Science, University of Wisconsin-Madison, Madison, WI. Peters, J. B., K. A. Kelling, and D. J. Undersander. 2004. "Evaluation of Several Alfalfa Varieties for Low Soil pH Tolerance." Proceedings of the 6th International Symposium on Plant-Soil Interactions at Low Soil pH. Sendai, Japan. Peters, J. B., P. E. Speth, K. A. Kelling, and R. Borges. 2005. "Effect of Soil pH on Soybean Yield." Proceedings of the 2005 Wisconsin Fertilizer, Aglime and Pest Management Conference. p. 134-138. Warncke, D. D. 2004. Effects of nitrogen, phosphorus and potassium on carrot biomass. In (ed. Warncke) Cops Annual Research Report No. 29. AES, Mich. State Univ., East Lansing, MI Watson, M. E. 2004. Published an article entitled Sampling for Fall Soil Testing for The Ohio State University Extension Crop Observation and Recommendation Network. Watson, M. E. 2005. Authored an article entitled END OF SEASON CORNSTALK NITRATE for the electronic C.O.R.N. newsletter. Watson, M. E. 2005. Co-authored an article entitled Importance of Maintaining Optimum pH for Crop Production for the electronic C.O.R.N. newsletter. Watson, M. E. 2005. Joint published an article entitled Applying Nitrogen to Young Corn in the OSU C.O.R.N. electronic newsletter. Watson, M. E. 2005. Co-authored an article entitled Fall Soil Sampling for Next Years Crop for the electronic C.O.R.N. newsletter. Yang, H.S., A. Dobermann, K.G. Cassman, and D.T. Walters. 2005. Hybrid-Maize. A simulation model for corn growth and yield. Nebraska Cooperative Extension CD 9 [online and CD-ROM]. Available at hybridmaize.unl.edu (accessed Sep 1, 2005). University of Nebraska-Lincoln, Lincoln, NE