components of a nutrient management plan the how, where, when, and why
DESCRIPTION
Nutrient management strategy Measure current levels of soil fertility Determine crop nutrient needs Account for on-farm nutrient resources Manure applications Legumes in crop rotation Residual soil nitrate Adjust commercial fertilizer application ratesTRANSCRIPT
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Components of a Nutrient Management
Plan The How, Where, When, and Why
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Nutrient Management Combine on-farm nutrient sources, with
commercial fertilizer, to meet crop need
On-farm nutrient sources (manure and legumes)
Commercial fertilizer
Minimize nutrient losses
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Nutrient management strategy
Measure current levels of soil fertilityDetermine crop nutrient needsAccount for on-farm nutrient resources
• Manure applications• Legumes in crop rotation• Residual soil nitrate
Adjust commercial fertilizer application rates
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What is a Farm Nutrient Management Plan? A strategy for obtaining the maximum return
from on-farm and commercial fertilizer resources in a manner that protects water quality.
If required for compliance with an agricultural or environmental program, the plan must meet the USDA-Natural Resources Conservation Service Nutrient Management Standard – 590.
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0
147
64 35
188
79 50
230
179
134
106
340
192
194
106
404
148
2001-2006 Nutrient Management Acres
Farms practicing NM& not in programs
Cost Sharing Programs
WPDES
County Ord.
in thousands of acres
222
223
117
180
93
116 131
Total reported acres 302,070 852,254 Year 2001 2006
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Is NM Std. 590 2005 law?
Yes, in ATCP 51, livestock siting, May 2006
590 Std. 2005 being incorporated into Wis. Admin. Code ATCP 50
517 NM plans (207,700 acres) reported in 2006 were P based 590, an increase from the 38 NM plans (25,260 acres) in 2003
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When Are Nutrient Management Plans Required?
1. A producer voluntarily accepts, or is offered, government cost-share dollars for NM or the installation of manure storage. REQUIRES COST SHARING
2. A producer voluntarily continues participation in the farmland preservation program (FPP).
3. A producer is regulated under a county manure storage or livestock siting ordinance.
4. A producer is regulated under a DNR WPDES. 5. NM planning enforcement can take effect
everywhere in Wisconsin after January 1, 2008.
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Facility has 500 or more animal units when new or has 500 or more animal units and expands by 20% Unless a lower ordinance number as of July 19, 2003
(must amend ordinance by November 1, 2006 to incorp. Standards and submit ordinance to DATCP)
Exceeds size of previous permit
A permit is required if local government A permit is required if local government regulates livestock facilities siting AND regulates livestock facilities siting AND one of the following applies: one of the following applies:
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Nutrient Management Plan- Basic Components - Soil Test Reports Inventory of On-farm Nutrient Resources Nutrient Crediting Farm Conservation Plan Manure Inventory Manure Spreading Plan
Map showing restricted areas Meets the 590 Nutrient Mgmt. Standard Annual Updates
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Components of the 590 Nutrient Management Standard
General concepts of nutrient management Based on University of Wisconsin-Extension
research recommendations Broken into three criteria:
Minimum requirements Minimize nutrient entry to groundwater Minimize nutrient entry to surface water
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Nutrient Management Standard: Minimum Requirements
Soil testing Every four years (minimum)
The soil sample has to represent the field.
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Nutrient Management Standard: Minimum Requirements
Soil testing Field-specific
nutrient budgets Consistent with
UWEX fertilizer recommendations.
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Nutrient Management Standard: Minimum Requirements
Soil testing Every four years (minimum)
Field-specific nutrient budgets Consistent with UWEX fertilizer
recommendations. Credit nutrients from non-commercial
fertilizers according to UWEX recs.
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Efficient fertilization utilizes all sources of nutrients!
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On-farm Nutrient Sources
1. Manure
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If You Are Going To Use Manure as a Fertilizer…
Treat It Like A Fertilizer!
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Needed To Properly Credit Manure Nutrients:
Available nutrient content• Book values• Laboratory analysis
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Needed To Properly ManageManure Nutrients:
Available nutrient content• Book values• Laboratory analysis
Manure application rate
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On-farm Nitrogen Sources1. Manure2. Legumes
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Legume Nitrogen Credits Alfalfa provides
significant amounts of nitrogen to crops following in the rotation.
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On-farm Nitrogen Sources 1. Manure 2. Legumes 3. Residual Soil Nitrate
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Nutrient Management Standard: Groundwater Protection Requirements
UWEX rate recommendations for nitrogen On sands and loamy sands:
No fall application of commercial nitrogen Fall liquid manure applications when soil
temperatures are > 50o must contain a nitrification inhibitor
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Nutrient Management Standard: Groundwater Protection Requirements UWEX rate recommendations for nitrogen On sands and loamy sands:
No fall application of commercial nitrogen Fall liquid manure applications when soil temperatures
are > 50o must contain a nitrification inhibitor No manure can be applied to the following areas
unless incorporated: 200 feet up-gradient of wells, sinkholes, cracked
bedrock Other locally identified areas
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Nutrient Management Standard: Surface Water Protection Requirements UWEX rate recommendations for
phosphorus (P). Manure application rates limited by either: 1) Soil test P criteria, or 2) Phosphorus Index (PI) ranking
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Soil Test Phosphorus- Critical Values - < 50 ppm P: N-based nutrient management plan. 50 – 100 ppm P:
P application not to exceed total crop P removal over the rotation.
> 100 ppm P: Eliminate P applications- Unless required for high-demanding crop in rotation.- Unless no other option, then apply at less than crop removal of P with soil conservation practices in place. - Use P Index.
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Phosphorus IndexMeasures the relative potential for a
field to deliver P to surface waters.Evaluates site loading (quantity of P)
and transport potential (erosion and runoff) from individual fields.
Field characteristics required. Agricultural management practice
recommendations based on PI value.
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The Wisconsin P IndexL. G. Bundy, L. Ward Good, and W.M. Jarrell
Dept. of Soil Science - University of Wisconsin-Madison
http://wpindex.soils.wisc.edu
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Nutrient Management Standard: Surface Water Protection Requirements UWEX rate recommendations for
phosphorus. Manure application rates limited by either: 1) Soil test P criteria, or 2) Phosphorus Index (PI) ranking Soil loss tolerance (T) is not to be
exceeded on fields receiving nutrients.
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Nutrient Management Standard: Surface Water Protection Requirements UWEX rate recommendations for phosphorus. If not incorporated within 3 days, manure
applications not to exceed 75 lb of available P2O5/acre/year. If incorporated, nitrogen becomes the restricting nutrient.
Soil loss tolerance (T) is not to be exceeded on fields receiving manure.
Manure not to be spread in waterways, wetlands, terrace channels, etc.
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Nutrient Management Standard: Surface Water Protection Requirements
Manure not to be applied to the following areas unless injected or incorporated: 300 feet of streams or 1,000 feet of lakes 200 feet up-gradient of wells, sinkholes, cracked
bedrock
Remember: Do not exceed “T”.
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Nutrient Management Standard: Surface Water Protection Requirements
Manure applications not to be applied on frozen or snow covered fields in the following areas: Within 300 feet of streams or 1,000 feet of lakes Slopes > 9% (up to 12% with soil conservation
practices) Other locally identified areas
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Nutrient Management Planning- Information Needed -
Soil test reports & fertilizer recommendations Soil conservation plan
Identifies crop rotation, soils, slopes, waterbodies, etc Many need updating
On-farm nutrient resource inventory Manure, legumes, organic wastes
Manure spreading restrictions Usually identified with a map
Manure spreading plan
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Nutrient Management Planning- Plan Delivery -
Farmer friendly & understandable
“Do-able”
Updated at least annually
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Nutrient management strategy
Measure current levels of soil fertilityDetermine crop nutrient needsAccount for on-farm nutrient resources
• Manure applications• Legumes in crop rotation• Residual soil nitrate
Adjust commercial fertilizer application rates
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Nutrient Management Plan- Basic Components -
Soil Test Reports Inventory of On-farm Nutrient Resources Nutrient Crediting Farm Conservation Plan Manure Inventory Manure Spreading Plan
• Map showing restricted areas Meets the 590 Nutrient Mgmt. Standard Annual Updates
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