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Calhoun County: Soil Ratings for Selecting Pesticides 1
G.W. Hurt and T.A. Obreza2Resource soil scientists with the USDA Natural Resources Conservation Service have rated the soils that are delineated by map units in the Calhoun County Soil Survey Report1 for their potential for leaching and runoff of pesticides. The rating criteria are given in a companion publication entitled "Soil Ratings for Selecting Pesticides for Water Quality Goals." These soil ratings have been developed to help pesticide users determine the potential for pesticides to be lost to groundwater or surface water bodies.
As explained in Circular 9592, factors that determine pesticide leaching ratings in soil are permeability and the occurrence of mucky layers in the upper 80 inches of the soil. Soils rated High have a high potential for pesticides to leach to groundwater, soils rated Medium have a medium potential for pesticides to leach to groundwater, and soils rated Low have a low potential for pesticides toleach to groundwater. Factors that determine pesticide runoff ratings from soils are hydrologic group, permeability, and slope. Soils rated High have a high potential for pesticide runoff, soils rated Medium have a medium potential for pesticide runoff, and soils rated Low have a low potential for pesticide runoff.
NOTE: The user may discover that one or more map unit names in Table 1 have been updated from names given in the legend of the soil survey report1. For example, a soil map unit may be listed in the survey report with a single soil series name, whereas the same soil map unit is shown as comprising two or more soil series in the list in Table 1 (sequence numbers 1, 2, 3, ...) Where this occurs, the user should use the multi-named map unit given here, and make pesticide selections based on the most limiting condition to be found on the land in question. If necessary, the local Natural Resources Conservation Service office should be contacted to perform an on-site evaluation of the land in question.
REFERENCES
- Allen, W.J., D.E. Leach, and W.G. George. 2004. Soil Survey of Calhoun, Florida. USDA/NRCS in cooperation with University of Florida Agricultural Experiment Stations.
- Obreza, T.A. and G. W. Hurt. 2006. Soil Ratings For Selecting Pesticides For Water Quality Goals. Circular 959, Soil and Water Science Department, Cooperative Extension Service, University of Florida, Gainesville, Florida, 32611. 5pp.
Tables
Table 1. Soil Ratings for Calhoun County (see footnotes for explanations of column headings).
MUID
SEQ NUM
MUSYM
SOIL NAME
SOIL LEACH
SOIL RUNOFF
013002 1 2 Albany Medium Medium 013004 1 4 Brickyard Low High 013005 1 5 Robertsdale Low Medium 013006 1 6 Bladen Low High 013007 1 7 Blanton Medium Low 013008 1 8 Blanton Medium Low 013010 1 10 Bonifay Medium Low 013012 1 12 Chipley High Medium 013014 1 14 Chipola Medium Low 013017 1 17 Florala Low Medium 013018 1 18 Florala Low Medium 013020 1 20 Dorovan Low High 013020 2 20 Pamlico Low High 013020 3 20 Rutlege High High 013021 1 21 Dothan Low Medium 013022 1 22 Dothan Low Medium 013023 1 23 Dothan Low Medium 013024 1 24 Dunbar Low Medium 013025 1 25 Duplin Low Medium 013029 1 29 Kenansville Medium Medium 013030 1 30 Garcon Medium Medium 013031 1 31 Foxworth High Low 013032 1 32 Fuquay Low Low 013033 1 33 Fuquay Low Low 013034 1 34 Fuquay Low Low 013035 1 35 Hurricane High Medium 013036 1 36 Lakeland High Low 013037 1 37 Lakeland High Low 013038 1 38 Tawcaw Low High 013038 2 38 Ochlocknee Medium Medium 013039 1 39 Leefield Low Medium 013041 1 41 Lucy Medium Low 013042 1 42 Lucy Medium Low 013043 1 43 Lucy Medium Low 013044 1 44 Orangeburg Medium Medium 013045 1 45 Orangeburg Medium Medium 013046 1 46 Orangeburg Medium High 013048 1 48 Pansey Low High 013051 1 51 Plummer Medium High 013054 1 54 Croatan Low High 013054 2 54 Surrency Low High 013054 3 54 Pantego Low High 013055 1 55 Pottsburg Medium High 013057 1 57 Stilson Low Medium 013058 1 58 Stilson Low Medium 013060 1 60 Croatan Low High 013060 2 60 Rutlege High High 013060 3 60 Surrency Low High 013061 1 61 Troup Medium Low 013062 1 62 Troup Medium Low 013064 1 64 Pamlico Low High 013064 2 64 Bibb Medium High 013064 3 64 Rutlege High High 013066 1 66 Lakeland High Low 013066 2 66 Troup Medium Low 013067 1 67 Alapaha Low High 013068 1 68 Croatan Low High 013068 2 68 Kinston Low High 013068 3 68 Surrency Low High 013069 1 69 Leefield Low Medium 013070 1 70 Alapaha Low High 013071 1 71 Dothan Low High 013071 2 71 Fuquay Low Low 013072 1 72 Pits High High Footnotes: MUID = Natural Resources Conservation Service's map unit identifier. SEQ NUM = Sequence Number, indicating a particular soil name among one or more names constituting a map unit name. MUSYM = Map Unit Symbol from the soil map and legend in the Soil Survey of Calhoun County, Florida. Note that if a MUSYM appears more than once in this list it signifies that two or more soils are co-dominant in that map unit, and each such soil is rated separately here. SOIL NAME = Name of soil or other landscape component (urban land, made land, borrow pits, spoil banks, etc.). SOIL LEACH = The rating of the soil for leaching of pesticides through the soil profile. SOIL RUNOFF = The rating of the soil for runoff of pesticides from the soil surface. NOTE: See "Soil Ratings for Selecting Pesticides for Water Quality Goals" (IFAS Extension Circular 959) for explanations of the criteria used to develop soil ratings presented in the right-hand four columns of this list.
Footnotes
1. This document is SL148, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 1999. Revised: September 2006. Please visit the EDIS Web site at http://edis.ifas.ufl.edu.2. G.W. Hurt, National Leader for Hydric Soils, USDA Natural Resources Conservation Service; T.A. Obreza, Professor, Soil and Water Science Department, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611.
The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other extension publications, contact your county Cooperative Extension service.
U.S. Department of Agriculture, Cooperative Extension Service, University of Florida, IFAS, Florida A. & M. University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Larry Arrington, Dean.
Copyright Information
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