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This rule establishes best management practices that govern land application of manure on land application sites. The land application of manure at each land application site shall be conducted to utilize nutrients at agronomic rates, and to minimize nutrient runoff to waters of the state and shall be recorded in the operating record in accordance with rule 901:10-2-16 of the Administrative Code. The discharge of manure to waters of the state from a facility as a result of application of that manure by the facility to land areas under its control is a discharge from that facility subject to NPDES requirements except where it is an agricultural stormwater discharge as defined in rule 901:10-1-01 of the Administrative Code. Where manure has been applied in accordance with an approved manure management plan, a precipitation-related discharge of manure from land areas under the control of the facility is agricultural stormwater discharge.
(A) The manure management plan shall contain procedures on how manure shall be transported to land application sites in a manner that minimizes loss or spillage, and how spills will be promptly cleaned up or removed.
(B) Manure application rate – testing criteria:
(1) The manure application rate shall be based on the land application site’s soil tests conducted in accordance with rule 901:10-2-13 of the Administrative Code and that are no older than three years.
(2) The manure application rate shall be based on the most current manure test results conducted in accordance with rule 901:10-2-10 of the Administrative Code. The manure test results expressed as a nutrient percentage shall be converted into either pounds per ton of dry or wet manure or pounds per one thousand gallons of liquid manure.
(C) Manure application rate – general criteria: The manure application rate shall be based on the most limiting factor of rates derived from paragraph (B) of this rule and of paragraphs (C) to (E) of this rule, whichever is determined to be the most restrictive factor for purposes of protecting waters of the State.
(1) For liquid manure:
(a) The crop nitrogen requirements or removal as described in paragraph (D) of this rule and as expressed in thousands of gallons of manure per acre;
(b) The crop phosphorus requirements or removal as described in paragraph (E) of this rule and as expressed in thousands of gallons of manure per acre;
(c) The restrictions on the rate of liquid manure application, taken from notes (1) and (5) in appendix A table 2 of this rule, with volume expressed as a measure of gallons per acre or inches per acre;
(d) The application rate shall not exceed the available water capacity of the soil as described in appendix B of this rule; and
(e) The application rate shall be adjusted to avoid surface ponding and/or runoff from a land application site.
(2) For solid manure:
(a) The crop nitrogen requirements or removal of nitrogen as described in paragraph (D) of this rule expressed in pounds per ton of dry manure per acre;
(b) The crop phosphorus requirements or removal as described in paragraph (E) of this rule expressed in pounds per ton of dry manure per acre; or
(c) The restrictions on the volume of solid manure applied, taken from notes (1) and (5) in appendix A table 2 of this rule with volume expressed as a measure of tons/acre.
(3) All land applications of manure shall comply with all restrictions contained in appendix A of this rule unless a compliance alternative is submitted in the manure management plan and approved by the director. As a compliance alternative, the concentrated animal feeding operation may demonstrate that a setback or buffer is not necessary because implementation of alternative conservation practices or field-specific conditions will provide pollutant reductions equivalent or better than the reductions that would be achieved by the one hundred foot setback or a thirty five foot vegetated buffer.
Comment: The Natural Resources Conservation Service and the Ohio State University have conducted extensive research on manure injection and manure incorporation on all representative Ohio soil types. Refer to United States Department of Agriculture – Natural Resource Conservation Service. Field Office Technical Guide – Conservation Practice Standard 633. Columbus, Ohio, June 2003, revised August 2004.
(4) For all land application of liquid manures, the owner or operator shall maintain or have access to methods or devices to capture or stop subsurface drain flow if liquid manure reaches the subsurface drain outlets. Use of drain outlet plugs or other devices shall be recorded in the operating record in accordance with rule 901:10-2-16 of the Administrative Code.
(5) Calculate the total amount of nitrogen and phosphorus to be applied to each field, including sources other than manure such as commercial fertilizer or other organic by-products.
(6) Land application of manure shall not occur if the forecast contains a greater than fifty per cent chance of precipitation as determined in “Managing Manure Nutrients at Concentrated Animal Feeding Operations, Appendix M, United States Environmental Protection Agency, EPA-821-B-04-006, August 2004,” exceeding an amount of one-half inch for a period extending twenty-four hours after the start of land application. Record weather conditions in the operating record for conditions at the time of application and for twenty-four hours prior to and following application.
(D) The manure application rate for nitrogen shall be based on the following criteria:
(1) The application rate for nitrogen shall be based on utilization of crops at the recommended agronomic rates and based on minimum runoff and leaching that may impact waters of the state.
(2) In determining the agronomic rate for nitrogen, the owner or operator shall do the following:
(a) Determine the nitrogen requirements or removal rates for the realistic yield goal of planned crops using nutrient amounts from appendix C tables 1, 2 or 3 of this rule.
(b) Subtract the nitrogen credit for crop residue, legumes, and other sources of nitrogen to be given to the next corn crop in accordance with values for previous crops given in appendix C, table 4 of this rule;
(c) When applying nitrogen to a grass or legume cover crop that is growing or being established immediately after manure application, manure can be applied at the recommended nitrogen rate for the next non-legume crop or the nitrogen removal rate for the next legume crop.
(3) In determining how to minimize nitrogen leaching that may impact waters of the state, the owner or operator shall do the following:
(a) Assess each land application site with the Ohio nitrogen leaching risk assessment procedure contained in appendix C, table 5 of this rule;
(b) If the nitrogen leaching risk assessment procedure completed in accordance with paragraph (D)(3)(a) of this rule demonstrates that the land application site has a high nitrogen leaching potential and no growing crop, then application of manure shall be limited to fifty pounds of nitrogen per acre calculated at the time of application prior to October first.
(4) In calculating the actual rate of application of nitrogen from manure, the figures in appendix C, table 6 of this rule shall be used along with the manure test results conducted according to rule 901:10-2-10 of the Administrative Code.
(5) The criteria applicable to manure application and the requirements of paragraph (D) of this rule may be changed only if the owner or operator can demonstrate to the director nutrient insufficiency in accordance with the presidedress nitrate soil test procedures of tables 7 and 8 in appendix C of this rule.
(E) Manure application rate phosphorus criteria:
(1) The application rate for phosphate applications shall be based on the following:
(a) Estimated plant uptake by crops at the recommended agronomic rates;
(b) Soil test analysis obtained pursuant to rule 901:10-2-13 of the Administrative Code;
(c) Subsequent phosphorus removal in plant biomass; and
(d) Minimum runoff that may impact waters of the state.
(2) In determining the agronomic rate for phosphate application, the owner or operator shall do the following:
(a) Determine the phosphorus requirements for the realistic yield goal of planned crops and/or crop rotations using amounts from appendix C, table 1 or appendix D, tables 1 to 5 of this rule.
(b) The application rate for phosphorus shall not exceed the rate provided in appendix C, table 1 or appendix D, tables 1 to 5 of this rule, unless following the procedures in paragraph (E)(3) of this rule.
(3) In determining how to minimize phosphorus runoff that may impact waters of the state, the owner or operator shall do the following and apply no more than the value as determined by Table 2 of appendix E of this rule:
(a) Prior to the land application of manure, a land application site shall be assessed with either the phosphorus index risk assessment procedure in appendix E, table 1 of this rule or the phosphorus soil test risk assessment procedure in appendix E, table 2 of this rule;
(b) Application of phosphorus shall not occur on land with soil tests over one hundred fifty parts per million Bray P1 or equivalent unless the owner or operator can demonstrate an alternative to the director through the use of the phosphorus index risk assessment procedure contained in appendix E Table 1 of this rule.
(c) Phosphorus applications between two-hundred and fifty pounds per acre and five hundred pounds per acre are not recommended but may be made if the values for liquid manure exceed sixty pounds phosphorus per one thousand gallons and if the values for solid manure exceed eighty pounds phosphorus per ton and application is subject to these additional requirements:
(i) No manure application shall occur on land with soil tests that exceed more than one hundred parts per million Bray P1;
(ii) No manure application shall occur on frozen or snow-covered ground;
(iii) The manure shall be incorporated within twenty-four hours;
(iv) No additional phosphorus application shall be made for a minimum of three years on fields with soils tests that measure less than forty parts per million Bray 1 or equivalent; and
(v) No additional phosphorus application shall be made for a minimum of five years on fields with soils tests between forty and one-hundred parts per million Bray P1 or equivalent.
(d) Notwithstanding the procedures in paragraph (E)(3)(a) or (E)(3)(b) of this rule but subject to the restrictions in appendix B of this rule, for a single phosphorus application in a year, the application rate shall not exceed five hundred pounds per acre of phosphorus.
(F) Land application for crops or other uses not listed in appendixes C and D of this rule will be considered on a case-by-case basis. The owner or operator shall submit existing published or documented data that is acceptable to the director.
(G) General criteria for frozen and snow-covered ground. In addition to complying with all of the criteria in paragraphs (A) to (F) of this rule, the following actions are required for surface application of manure to land with frozen or snow-covered ground.
If manure can be injected or incorporated then the land application site is not frozen or snow covered and therefore subject to paragraphs (A) to (F) of this rule.
The owner or operator shall comply with rule 901:10-2-08 of the Administrative Code and this rule and use best efforts to avoid surface application of manure to frozen or snow covered ground by ensuring enough manure storage capacity by November of each year for a minimum of one hundred twenty to one hundred eighty days.
Manure injection or manure incorporation performed within twenty-four hours at the land application site or manure stockpiling at the land application site are preferred alternatives to surface application of manure.
In the event that surface application of manure on frozen or snow-covered ground is unavoidable, then application shall be performed in accordance with all of the following requirements in paragraph (G)(1) of this rule.
(1) Application.
(a) Prior approval for surface application of manure shall be obtained from the director or his designated representative.
(b) Except as required by paragraph (G)(1)(g) of this rule, the application rate is limited to ten wet tons per acre for solid manure with more than fifty per cent moisture and five wet tons per acre for manure with less than fifty per cent moisture.
(c) Except as required by paragraph (G)(1)(g) of this rule, liquid manure the application rate is limited to five thousands gallons per acre.
(d) Applications are to be made on land with at least ninety per cent surface residue cover at the time of application such as good quality hay or pasture field, all corn grain residue remaining after harvest, and all small grain residue cover remaining after harvest. Vegetation or residue shall not be completely covered by ice or snow at the time of application.
(e) Manure ponding shall be prevented. Manure shall not be applied on more than twenty contiguous acres. Contiguous areas for application are to be separated by a break of at least two hundred feet. Areas that are furthest from steams, ditches, waterways, surface waters are to be utilized in preference to areas with the potential for surface water runoff.
(f) Setbacks from surface waters and conduits to surface waters, (including grassed waterways and surface drains) shall be a minimum of two hundred feet. Setbacks shall have at least ninety percent surface residue cover and vegetation or residue shall not be completely covered by ice or snow at the time of application.
(g) For application fields with slopes greater than six percent, manure shall be applied in alternating strips sixty to two hundred feet wide generally on the contour, or in the case that the field is managed in contour strips with alternative strips in grass or legume, manure shall only be applied on alternative strips. Manure application rates shall be determined for each separate application strip area and not the area of the entire application field.
(h) Any manure application with phosphorus exceeding two hundred and fifty pounds per acre is prohibited.
(2) Monitoring.
(a) Concentrated field surface drainage and tile outlets shall be visually monitored at the conclusion of manure application and periodically afterwards when weather, temperature increase, snowmelt and rainfall are likely to produce manure runoff. Periodic visual monitoring shall continue until manure is assimilated into the application field and is no longer likely to discharge into waters of the state.
(b) Upon discovering a discharge, the owner or operator shall comply with rule 901:10-2-17 of the Administrative Code.
(c) In the event that the owner or operator fails to comply with the land application requirements for frozen or snow covered ground, including but not limited to prior notice to the department, notice of discharges, monitoring and record keeping, for more than two surface land application events, then land application on any frozen or snow-covered shall be prohibited for that owner or operator for the duration of the permit upon receipt of a notice of deficiencies resulting in noncompliance pursuant to section 903.17 of the Revised Code.
(d) On and after April 1, 2007, in addition to the requirements for visual monitoring and reporting in paragraph (G)(2)(a) of this rule the director may require the owner or operator to collect representative grab samples from discharges of manure from the land application site.
Appendix A to rule 901:10-2-14: How to Use the Appendices to this Rule.
Refer to Appendix A, Tables 1 and 2 – Soils Prone to Flooding through Appendix F, Most Limiting Manure Application Rates of rule 901:10-2-14 of the OAC.)
1. Determine if the site has soils that are prone to flooding and when the expected flooding seasons are (Appendix A, Table 1). Note that applications can only be made to soils prone to flooding at times outside the predicted flooding season. All applications to soils prone to flooding must be incorporated within 24 hours and must follow the setbacks in Appendix A, Table 2.
2. Determine if a solid or liquid manure application will be performed. Determine if solid manure will be stockpiled at the land application site. Stockpiles must meet the setbacks described in column 1 of Appendix A Table 2.
3. For liquid manure applications, follow Appendix B, Available Water Capacity Chart, and Appendix F, Most Limiting Manure Application Rates Chart (Table 1 – tiled fields, Table 2 – non-tiled fields). For solid manures, follow Appendix F, Most Limiting Manure Application Rates Chart.
4. Determine the nutrient removal for the expected cropping sequence using Appendix C, Tables 1-3. Determine residual nitrogen credits for the expected cropping sequence using Appendix C, Table 4.
5. Determine the nitrogen leaching potential of the field based on Appendix C, Table 5, Nitrogen Leaching Assessment Procedure. Note that all tiled fields have a high nitrogen leaching potential. High nitrogen leaching potential fields must have application rates less than or equal to 50 lb/ac as applied nitrogen (calculated by adding NH4-N to 1/3 Organic N) from June – October 1st unless the field has a cover crop planted.
6. Use the current manure analysis and the relevant sections of Appendix C Tables 6-7 through Appendix D, Tables 1-5 to determine the amount of manure nutrients available for crop production.
7. Use Appendix E, Table 1 (P-Index) if the Bray P1or equivalent value of the soil test is over 150 ppm. P-Index may only be relied upon for a transitional period of time to allow the owner or operator an opportunity to find other fields or other methods to distribute nutrients from of the facility in order to achieve less than 150 ppm Bray P1 soil test method.
8. Use Appendix F, Most Limiting Manure Application Rates Chart, Nitrogen, P2O5, K2O, Rate (tons or gallons per acre), or Available Water Capacity to determine the application rate. The selected application rate must be the most restrictive of the five “Limiting Application Rate Criteria” for each Field Situation & Time of Year.
Other Notes:
9. When using Appendix F, although not recommended, Phosphate manure application rates can be made between 250-500lb/ac/yr in cases where liquid manure exceeds 60 lbs. P2O5 per 1000 gallons or solid manure that exceed 80 lbs. P2O5 per ton. The following criteria also apply: manure must be incorporated within 24 hours and no applications can be made on either frozen or snow covered ground or fields with soil tests over 100 ppm Bray P1; soil tests less than 40 ppm Bray P1 shall have no further P additions for 3 years; soil tests between 40 – 100 ppm Bray P1 shall have no further additions of P for 5 years; no other limiting criteria can be violated.
10. When using legumes as a nitrogen removal source, the maximum legume nitrogen removal must be less than or equal to 150 lbs./ac.
11. When applying liquid manure to tiled fields, the following criteria must be followed (except for growing crops):
11a. Applications must be less than or equal to 0.5” or 13,576 gal/ac.
11b. Use a tool (AERWAY tool or similar tool) that can disrupt/close (using horizontal fracturing) the preferential flow paths in the soil, or till the surface of the soil 3-5” deep to a seedbed condition to soak up the liquid manure and keep it out of preferential flow channels.
11c. If injection is used, it should only be deep enough to cover the manure with soil. Till the soil at least 3” below the depth of injection prior to application. Tillage prior to application will be considered incorporation of the manure.
11d. The outlets must be monitored before, during, and after application AND provisions planned to plug the tile or capture the tile flow if liquid manure reaches the tile outlets. If No-till or pastures are used for applications, tiles must be plugged.
12. If manure is to be applied on frozen or snow covered ground, the field must have at least 90% surface residue cover (e.g. good quality hay or pasture field, all corn grain residue). For applications to or frozen or snow covered ground, manure shall not be applied on more than 20 contiguous acres. Contiguous areas for application are to be separated by a break from streams, ditches, waterways, surface water, etc (areas that present the least runoff potential and are furthest from surface water The setbacks in column 3 should be followed. Prior approval must be obtained from the ODA, Livestock Environmental Permitting Program before frozen or snow/ice covered ground surface manure applications. If manure can be incorporated within 24 hours on frozen ground, approval from ODA, Livestock Environmental Permitting Program is not required.
13. For surface manure applications, follow the setbacks in column 2. For incorporation within 24 hours or injection, follow the setbacks in column 4.
Appendix A Table 1 to rule 901:10-2-14 Soils Prone to Flooding
Abscota Variant Feb-Jun
Adrian Nov-May
Aetna Dec-Jun
Algansee Nov-May
Algiers Nov-Jun Frequently flooded
Algiers Dec-Jun Occasionally flooded
Alluvial land Nov-Dec Long duration
Alluvial land Jan-Dec Very long duration
Ashton Dec-May
Beaucoup Mar-Jun
Bonnie Oct-Jun
Brookston Dec-May
Carlisle Nov-May
Ceresco Mar-May
Chagrin Nov-May
Chavies Nov-Mar
Clifty Nov-May
Coblen Nov-Jun
Cohoctah Nov-Apr
Cuba Jan-May
Defiance Jan-May
Edwards Sep-May
Eel Oct-Jun
Eel variant Jan-May
Elkinsville Jan-Dec
Euclid Dec-Jun
Fitchville Dec-Jun
Flatrock Dec-Apr
Flatrock, limestone substratum Nov-Apr
Fluvaquents Nov-Jun
Genesee Oct-May
Genesee variant Jan-May
Gessie Oct-May
Glendora Jan-Dec
Grigsby Dec-Apr
Hackers Jan-Apr
Harrod Nov-Jun
Hartshorn Nov-May
Haymond Dec-May
Holly Sep-May Frequently flooded, very long duration
Holly Nov-May
Holton Dec-Jun
Huntington Dec-May
Joliet Apr-Jun
Jules Mar-Jun
Kerston Mar-May
Killbuck Jan-Dec
Kinn Dec-Apr
Knoxdale Dec-Apr
Kyger Nov-May
Landes Jan-Jun
Landes variant Nov-Jun
Lanier Nov-Jun
Latty Jan-May
Lenawee Mar-May
Lindside Dec-Apr
Linwood Nov-Jun
Lobdell Jan-Apr Frequently flooded
Lobdell Nov-Apr
Martinsville Jan-Apr
Martisco Mar-Jun
McGary variant Jan-Dec
Medway Nov-Jun
Medway variant Nov-May
Medway, limestone substratum Nov-Dec
Melvin Sep-May Frequently flooded, long duration
Melvin Dec-May
Mentor Jan-Dec
Millgrove Nov-Jun
Montgomery Nov-May
Moshannon Dec-May
Muskego Nov-May
Newark Dec-Apr
Newark variant Jan-Apr
Nolin Feb-May
Nolin variant Feb-Apr
Olentangy Nov-Dec
Orrville Nov-May
Otego Nov-Dec-
Papakating Nov-Jun
Patton Jan-Dec
Peoga Jan-Dec
Pewamo Mar-Apr
Philo Dec-May
Piopolis Mar-Jun
Pope Nov-Apr
Rockmill Sep-Jun
Romeo Mar-Jun
Ross Nov-Jun
Rossburg Nov-Jun
Sarahsville Dec-May
Saranac Nov-May
Scioto Nov-Jun
Sebring Nov-Jun Occasionally flooded
Senecaville Dec-Apr
Shoals Oct-Jun
Shoals variant Nov-May used in Miami, Putnam, and Richland Counties
Shoals variant Oct-Jun used in Champaign County
Shoals, till substratum Nov-Dec
Skidmore Dec-May
Sligo Mar-Apr
Sloan Nov-Jun
Sloan, till substratum Nov-Dec
Stanhope Nov-Dec
Stendal Jan-May
Stone Nov-Jun
Stonelick Nov-Jun
Stringley Nov-Jun
Taggart Jan-Dec
Tioga Nov-May
Tioga Variant Jan-Apr
Toledo Nov-May
Tremont Jan-Dec
Wabash Nov-May
Wabasha Sep-Jun
Wakeland Jan-May
Wallkill Sep-Jun
Wappinger Jan-Dec
Warsaw variant Jan-May
Wayland Nov-Jun
Wick Oct-Jun
Wilbur Oct-Jun
Willette Nov-Dec
Zepernick Nov-Jun
Zipp Dec-May
Appendix A Table 2 to rule 901:10-2-14: Land application restrictions and setbacks
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP37_20050817_1128.pdf
Appendix B to rule 901:10-2-14 Available Water Capacity (AWC)
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP5_20050817_1128.pdf
Appendix C Table 1 to rule 901:10-2-14 Nutrients removed in harvested portions of crops.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP7_20050817_1128.pdf
Appendix C Table 2 to rule 901:10-2-14 Nitrogen ratesa for corn based on yield potential.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP9_20050817_1128.pdf
Appendix C Table 3 to rule 901-10-2-14 Nitrogen rates for wheat based on yield potential.
Yield Potential bu/acre — Nitrogen rate pounds N to apply/acre
50 40
70 75
90+ 110
1. N rate is based on the relationship:
N (lb/acre) = 40 + [1.75 x (yield potential – 50)]
2. No nitrogen credits are made based on previous crop.
Appendix C Table 4 to rule 901:10-2-14 Residual nitrogen credits based on previous crop.
Previous Crop — N Credits Pounds of N
Corn, small grains 0
Soybeans 30
Grass sod 40
Established forage legume
Average stand (3 plants/ft2) b
Good stand (5 plants/ft) b
Annual legume cover crop 30
bN credits for established forage legume = 40 + 20 x (plants/to maximum of 140. ft2)
Appendix C Table 5 to rule 901:10-2-14 Ohio – Nitrogen Leaching Assessment Procedure
Ohio – Nitrogen Leaching Risk Assessment Procedure
Soils are classified as having a high, medium or low nitrogen leaching potential with relative index ratings from 0-10+ for their potential to leach nitrates below the root zone. The leaching potential is rated as high, medium or low by combining the soil’s hydrologic soil grouping (A, B, C, or D), the local county’s annual rainfall, and the local county’s season rainfall (October 1 to March 1).
To determine the soil’s nitrogen leaching potential, use the following procedure:
First, determine the soils hydrological soil grouping – A, B, C, or D. For this information, refer to USDA-NRCS Engineering Field Manual, Chapter 2 – Ohio Supplement (1989), Table 2.1, pages 2-42 through 2-83.
Second, Determine the local county’s annual rainfall and the local county’s season rainfall (October 1 to March 1). For this information, refer to USDA-NRCS Engineering Field Manual, Chapter 2 – Ohio Supplement (1989), Exhibit OH2-3, Supplement pages 1 through 4 and USDA-NRCS Engineering Field Manual, Chapter 2 – Ohio Supplement (1989), Exhibit OH2-1, and Sheets 1 through 3.
Third, refer to the table (next page) – Ohio (By County) Leaching Index Ratings for Soils by Hydrologic Groups (A, B, C, D) for the respective county to determine the soils relative leaching index rating.
(a) Soils with a rating of 0-2 have a low potential to leach nitrates below the root zone.
(b) Soils with a rating of 3-10 have a medium potential to leach nitrates below the root zone.
(c) Soils with a rating of 10+ have a high potential to leach nitrates below the root zone.
(d) All soils with systematic subsurface drains (tile) are rated high potential.
Ohio (By County) Leaching Index Ratings for Soils by Hydrologic Groups (A, B, C, D)
See Table at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP35_20050817_1128.pdf
Appendix C Table 6 to rule 901:10-2-14 Method of Calculating N Availability of Manures.
This table can be used to estimate the availability of ammonia and organic nitrogen in the soil. Only about one-third of the organic nitrogen in animal manure is available to crops during the year it is applied, and the remaining two-thirds, residual organic nitrogen, becomes part of the soil organic matter. It is mineralized or becomes available at the rate of approximately five per cent a year. Because ammonia is subject to high volatilization, incorporation factors of time of year and days until incorporation effect the availability of nitrogen.
The first column is the per cent of available ammonia from animal manure. The second column is the per cent of available organic nitrogen from animal manure. The third column is the time of year in which application can be made. The fourth column is the number of days till incorporation.
For example: Using the first row of data, if manure is applied in November, fifty per cent of the available nitrogen comes from ammonia and thirty-three per cent of the available nitrogen from residual organic nitrogen in manure if incorporated in less than five days.
Using the second row of data, if manure is applied in November, twenty-five per cent of the available nitrogen comes from ammonia and thirty-three per cent of the available nitrogen from residual nitrogen in manure if incorporation is more than five days after application.
See Table at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP16_20050817_1128.pdf
Appendix C Table 7 to rule 901:10-2-14 Nutrient Sufficiency Ranges for Corn, Soybeans, Alfalfa and Wheat.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP18_20050817_1128.pdf
Appendix C Table 8 to rule 901:10-2-14 Sidedress N fertilizer rates for corn, based on a presidedress nitrate soil test at the 4 to 6 leaf stage.
See Appendix athttp://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP20_20050817_1128.pdf
Appendix D Table 1 to rule 901:10-2-14 Phosphate (P2O5) Rate for Corn.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP22_20050817_1128.pdf
Appendix D Table 2 to rule 901:10-2-14 Phosphate (P2O5) Rate for Corn Silage.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP24_20050817_1128.pdf
Appendix D Table 3 to rule 901:10-2-14 Phosphate (P2O5) Rate for Soybeans.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP26_20050817_1128.pdf
Appendix D Table 4 of rule 901:10-2-14 Phosphate (P2O5) Rates for Wheat.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP28_20050817_1128.pdf
Appendix D Table 5 to rule 901:10-2-14 Phosphate (P2O5) Rates for Alfalfa.
See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP30_20050817_1128.pdf
Appendix E to rule 901:10-2-14.
Table 1 Phosphorus Index (P Index) Risk Assessment Procedure
The P Index is a procedure that combines well-established factors that influence the runoff of phosphorus to surface waters. Each of the factors is evaluated based on site-specific data and weighted according to its overall effect on phosphorus transport. Each of the site subvalues are added together to establish an overall site rating of low, moderate, high, or very high risk.
In most cases the use of the P Index will allow higher rates of Phosphorus application than the Phosphorus Soil Test Risk Assessment Procedure. The use of the P Index should be viewed as a continuous measure until other alternatives can be developed to utilize excess phosphorus produced on the farm.
Purpose:
The P Index is a planning tool designed to help identify fields or areas of fields on a farm that have a higher or lower risk of Phosphorus runoff from manure or other organic materials. Based on the risk assessment the appropriate land treatment and nutrient application treatments can be planned to minimize Phosphorus transport from the site.
Procedure:
Use the P Index Assessment Procedure Worksheet to determine the site’s overall P Index. Use the following guidance to determine each of the site’s subvalues. The subvalues are added together to determine the overall site P Index. The worksheet can be photocopied as needed. A “Field Summary Worksheet” is also available with this procedure to record a series of site/field values for a given farm. It can be photocopied as needed.
1. SOIL EROSION — Sheet and rill erosion as measured by the Revised Universal Soil Loss Equation (RUSLE) [USDA-NRCS (2001) National Soil Survey handbook, Section 618.55] or Wind Erosion Prediction Procedure (where wind erosion is the primary concern) [USDA-NRCS (2001) National Soil Survey handbook, Section 618.72]. Determine the predicted soil loss and multiply by (1) to determine the “soil loss” site subvalue.
2. CONNECTIVITY TO WATER — Defines the vulnerability of P to be transferred from the site to a perennial stream or water body. The more closely connected the runoff is from the field via concentrated flow (from a defined grassed waterway or surface drain) to a perennial stream or water body the higher the vulnerability of P transport. To determine the “connectivity to water” site subfactor ask the question: Does concentrated flow (via a defined waterway, tile inlet, or surface drain) leave the site? Read the value definitions to determine the site’s “connectivity to water” subvalue.
3. RUNOFF CLASS — This represents the effect of the Hydrologic Soil Group (A, B, C, D) combined with the effect of slope. This factor represents the site’s runoff vulnerability. Use the table below to determine the runoff class. The runoff class is the site’s subvalue.
Runoff Class Matrix – Phosphorus Index Values
4. SOIL “P” TEST (BRAY-KURTZ P1) – The soil test procedure using the Bray P1 extraction, or other extraction test calibrated to Bray P1, that provides an index of plant available P expressed in either ppm or lbs/ac (ppm X 2 = lbs/ac). Determine the Bray P1 value in PPM and multiply the PPM by (0.07) to determine the “soil P test site subvalue.
5. FERTILIZER P2O5 APPLICATION RATE – The amount of manufactured (commercial) phosphate fertilizer applied expressed in lbs/ac of P2O5. To determine the site’s subvalue multiply the year’s P fertilizer application rate by (0.05).
6. FERTILIZER P2O5 APPLICATION METHOD – Defines if the phosphate (P2O5) fertilizer is actually incorporated into the soil and the time interval between application and incorporation or if the fertilizer is applied over a given amount of crop residue. Incorporation or injection with the fertilizer application equipment or using a tillage tool operated a minimum of 3-4 inches deep to incorporate the P2O5 fertilizer. To determine the site’s subvalue select the description that most closely describes the method of application. The value with that description is the site’s subvalue.
7. ORGANIC P2O5 APPLICATION RATE – The amount of phosphate applied (expressed in lbs/ac of P2O5) from manure, sludge, or other bio-solids. To determine the site’s subvalue multiply the year’s P fertilizer application rate by (0.06).
8. ORGANIC P2O5 APPLICATION METHOD – Defines if the phosphate (P2O5) from the manure, sludge, or other bio-solids is actually incorporated into the soil, the time interval between application and incorporation, or if the manure/bio-solids are applied over a given amount of crop residue. Incorporation or injection with the application equipment or by using a tillage tool operated a minimum of 3-4 inches deep to incorporate the manure, sludge, or other bio-solids. To determine the site’s subvalue select the description that most closely describes the method of application. The value with that description is the site’s subvalue.
9. BUFFER STRIP – Deduct 2 points if field runoff flows via sheet flow through a designed filter strip – minimum 35 feet wide. For the type of buffer strip that is limited to the use of filter strips only, it is critical that sheet flow crosses the filter strip, not concentrated flow, to credit a 2 point deduction.
Phosphorus Index Risk Assessment Procedure Worksheet
See Worksheet at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP32_20050817_1128.pdf
Appendix E Table 2 of rule 901:10-2-14.
Phosphorus Soil Test Risk Assessment Procedure
Nitrogen and Phosphorus Application Criteria For Manure
See Appendix E Table 2 at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP34_20050817_1128.pdf
Appendix F to rule 901:10-2-14 Most Limiting Manure Application Rates.
Table 1. Most Limiting Manure Application Rates for Tiled Fields.
See Appendix F Table 1 at See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP39_20050817_1128.pdf
Appendix F to rule 901:10-2-14 Most Limiting Manure Application Rates.
Table 2. Most Limiting Manure Application Rates for Non-Tiled Fields.
See Appendix F Table 2 at See Appendix at http://www.registerofohio.state.oh.us/pdfs/901/10/2/901$10-2-14_PH_FF_A_APP40_20050817_1128.pdf
Effective: 01/29/2007
R.C. 119.032 review dates: 11/09/2006 and 01/29/2012
Promulgated Under: 119.03
Statutory Authority: 903.08, 903.10
Rule Amplifies: 903.10, 903.02, 903.04, 903.07, 903.08, 903.081, 903.082, 903.09, 903.10
Prior Effective Dates: 9/15/2005