998 resultados para QUATERNARY PERIOD
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Report on a special investigation of the Clarke Community School District cheerleading account for the period August 19, 2008 through June 30, 2011
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Reaudit report on the City of Fort Dodge, Iowa for the period July 1, 2009 through June 30, 2010
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Report on applying agreed-upon procedures to the Villisca Municipal Power Plant’s accounting procedures, cash and investment balances and compliance with Code of Iowa requirements for the period February 1, 2007 through December 31, 2010
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Report on the Emmet County Sheriff’s Office for the period June 1, 2009 through December 31, 2011
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Report on a review of the Pesticide Bureau of the Iowa Department of Agriculture and Land Stewardship for the period July 1, 2007 through June 30, 2010
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Report on a review of selected application controls over the University of Northern Iowa General Ledger System for the period of June 22, 2011 through August 4, 2011
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Report on a special investigation of the City of Dexter for the period July 1, 2004 through August 31, 2010
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Management systems involving crop rotation, ground cover species and reduced soil tillage can improve the soil physical and biological properties and reduce degradation. The primary purpose of this study was to assess the effect of various crops grown during the sugarcane fallow period on the production of glomalin and arbuscular mycorrhizal fungi in two Latosols, as well as their influence on soil aggregation. The experiment was conducted on an eutroferric Red Latosol with high-clay texture (680 g clay kg-1) and an acric Red Latosol with clayey texture (440 g kg-1 clay) in Jaboticabal (São Paulo State, Brazil). A randomized block design involving five blocks and four crops [soybean (S), soybean/fallow/soybean (SFS), soybean/millet/soybean (SMS) and soybean/sunn hemp/soybean (SHS)] was used to this end. Soil samples for analysis were collected in June 2011. No significant differences in total glomalin production were detected between the soils after the different crops. However, total external mycelium length was greater in the soils under SMS and SHS. Also, there were differences in easily extractable glomalin, total glomalin and aggregate stability, which were all greater in the eutroferric Red Latosol than in the acric Red Latosol. None of the cover crops planted in the fallow period of sugarcane improved aggregate stability in either Latosol.
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The planting of diversified crops during the sugarcane fallow period can improve the chemical and physical properties and increase the production potential of the soil for the next sugarcane cycle. The primary purpose of this study was to assess the influence of various soil uses during the sugarcane fallow period on soil chemical and physical properties and productivity after the first sugarcane harvest. The experiment was conducted in two areas located in Jaboticabal, São Paulo State, Brazil (21º 14' 05'' S, 48º 17' 09'' W) with two different soil types, namely: an eutroferric Red Latosol (RLe) with high-clay texture (clay content = 680 g kg-1) and an acric Red Latosol (RLa) with clayey texture (clay content = 440 g kg-1). A randomized block design with five replications and four treatments (crop sequences) was used. The crop sequences during the sugarcane fallow period were soybean/millet/soybean, soybean/sunn hemp/soybean, soybean/fallow/soybean, and soybean. Soil use was found not to affect chemical properties and sugarcane productivity of RLe or RLa. The soybean/millet/soybean sequence improved aggregation in the acric Latosol.
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Reaudit report on the Iowa Association of School Boards, in Des Moines, Iowa for the period July 1, 2008 through June 30, 2009
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Report on a special investigation of the Burlington Community School District and the Parent Teacher Organization at Grimes Elementary School for the period August 1, 2009 through June 30, 2011
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Report on a special investigation of the Department of Natural Resources’ Honey Creek Resort for the period October 1, 2010 through October 20, 2011
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Report on the Iowa Lottery Authority for the period July 1, 2002 through June 30, 2010
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Agreed upon procedures report on the Iowa Sheep and Wool Promotion Board for the period July 1, 2009 through June 30, 2011
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Report on a review of selected application controls over the Iowa Department of Transportation’s Driver’s License System for the period May 2, 2011 through May 27, 2011