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IRRIGATION AND NITROGEN MANAGEMENT PLAN (INMP) WORKSHEET

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IRRIGATION AND NITROGEN MANAGEMENT PLAN (INMP) WORKSHEET
IRRIGATION AND NITROGEN MANAGEMENT PLAN (INMP)
WORKSHEET
Member ID #: ____________ Member Name: _____________________________
Was this management unit identified as a statistical outlier by the Coalition last year?
Yes No
Crop Year (Harvested): ________________
PARCEL MANAGEMENT
Management Unit
(MU) or Field
APN County Crop
Crop Age
(Years)
Irrigated
Acres
Total Acres:
Comments/Notes:
IRRIGATION AND NITROGEN MANAGEMENT PLAN (INMP) WORKSHEET
IRRIGATION AND NITROGEN MANAGEMENT PLAN (INMP) WORKSHEET
Member ID: _______ INMP Field or MU: ___________________Crop: _________________ Total Acres: ______
IRRIGATION MANAGEMENT
1. Irrigation Method*
Pre-Season Planning
(check one for Primary; if applicable, check
one for Secondary)
Primary Secondary
1
Drip
Micro Sprinkler
Furrow
Sprinkler
Border Strip
Flood
2. Crop Evapotranspiration
(ET, inches)
3. Anticipated Crop Irrigation
(inches)
4. Irrigation Water N Concentration
(ppm or mg/L, as NO
3
-N)
5. Irrigation Efficiency Practices* (Check all that apply)
Laser Leveling
Use of ET in scheduling irrigations
Water application schedule to need
Use of moisture probe (e.g. tensiometer)
Soil Moisture Neutron Probe
Pressure Bomb
Other __________________________
Other __________________________
HARVEST / YIELD INFORMATION
Harvest / Yield Information Expected (A) Actual (B)
6. Production Unit
(lbs, tons, etc.)
7. Harvested Yield*
NITROGEN MANAGEMENT
8. Nitrogen Efficiency Practices*
(Check all that apply)
Nitrogen Sources
Recommended/
Planned N (A)
Actual N
(B)
Split Fertilizer Applications
Irrigation Water N Testing
Soil Testing
Tissue/Petiole Testing
Fertigation
Foliar N Application
Cover Crops
Variable Rate Applications using GPS
Other: _________________
Other: _________________
9. Soil – Available N in Root Zone
(Annualized, lbs/ac)
10. N in Irrigation Water*
(Annualized, lbs/ac)
11. Organic Amendments*
(Manure/Compost/Other, lbs/ac estimate)
12. Dry/Liquid Fertilizer N* (lbs/ac)
13. Foliar Fertilizer N* (lbs/ac)
14. TOTAL NITROGEN (lbs/ac)
1
A secondary irrigation system could be used for crop germination, frost protection, crop cooling, etc.
*(Bold Text) Data to be reported to the Coalition on the INMP Summary Report, based on Actual Yield and Actual N.
Plan Certifier Initials
IRRIGATION AND NITROGEN MANAGEMENT PLAN (INMP) WORKSHEET
INMP CERTIFICATION
The person signing this Irrigation and Nitrogen Management Plan (INMP) certifies, under
penalty of law, that the INMP was prepared under his/her direction and supervision, that the
information and data reported is to the best of his/her knowledge and belief, true, accurate, and
complete, and that he/she is aware that there are penalties for knowingly submitting false
information. Where the person signing the INMP is not the Member, he/she may rely on the
information and data provided by the Member and is not required to independently verify the
information and data.
The person signing the INMP below further certifies that he/she used sound irrigation and
nitrogen management planning practices to develop irrigation and nitrogen application
recommendations and that the recommendations are informed by applicable training for
meeting the crop’s agronomic needs while minimizing nitrogen loss to surface water and
groundwater. Where the person signing the INMP is not the Member, he/she is not responsible
for any damages, loss, or liability arising from subsequent implementation of the INMP by the
Member in a manner that is inconsistent with the INMP’s recommendations for nitrogen
application. This certification does not create any liability for claims for environmental
violations.
Certification:
Certified INMP Specialist (e.g. Certified Crop Adviser who has completed the CDFA
training program)
Self-Certified by Member who has completed the CDFA training program
Self-Certified by Member who follows NRCS or UC site-specific recommendations
(documentation required
)
I do not apply nitrogen
I, ____________________, certify this INMP in accordance with the statement above.
________________________________________ (Signature) ____________ (Date)
If the certifier is not the Member, the Member additionally agrees as follows:
I, ____________________, Member, have provided information and data to the certifier above
that is, to the best of my knowledge and belief, true, accurate, and complete, that I understand
that the certifier may rely on the information and data provided by me and is not required to
independently verify the information and data, and that I further understand that the certifier is
not responsible for any damages, loss, or liability arising from subsequent implementation of the
INMP by me in a manner that is inconsistent with the INMP’s recommendations for nitrogen
application. I further understand that the certification does not create any liability for claims for
environmental violations.
________________________________________ (Signature) ____________ (Date)
__
__
__
__
INMP Worksheet Instructions
Last Updated on October 16, 2018 Page 1
IRRIGATION AND NITROGEN MANAGEMENT PLAN (INMP)
WORKSHEET INSTRUCTIONS
Complete an Irrigation and Nitrogen Management Plan (INMP) Worksheet for every field or
management unit in your membership. All INMP Worksheets must be kept on farm for all fields/parcels
and made available upon request during inspections by the Central Valley Regional Water Quality
Control Board (Regional Board).
Each section heading below (all CAPS) corresponds to the section heading on the INMP Worksheet. The
numbered references correspond to each numbered box on the INMP Worksheet.
IRRIGATION AND NITROGEN MANAGEMENT PLAN
Enter the membership identification number (Member ID#) issued by your water quality coalition and
the Member Name associated with this membership.
Indicate if the field(s)/management unit you are writing the plan for was identified as a Statistical
Outlier by the Coalition for the previous crop year. The Coalition conducts a statistical analysis on the
data provided from members for the nitrogen applied and nitrogen removed (based on yield) to
determine statistical outliers. The Coalition provides annual feedback to members on reported nitrogen
use including if the field/management unit was identified as a statistical outlier. If the field/management
unit was identified as a statistical outlier by the Coalition in the previous crop year, mark “Yes”. Please
contact your Coalition for more information about this notification and statistical outliers.
Enter the Crop Year (Harvested). Information on INMP Worksheets should be based on the calendar
year in which harvest was completed. This includes winter crops (i.e. winter cereal grains and some
citrus crops such as navel oranges) for which fertilization may have occurred in the previous calendar
year but harvest was completed in the following calendar year. Fertilization does not need to occur
within the same calendar year to be considered a part of the current crop year.
PARCEL MANAGEMENT
Use this table to account for all parcels for which the plan applies. Multiple parcels, portions of parcels,
or fields (not to exceed 640 acres) may be included in a single plan if they all have the same:
• Crop
• Fertilizer inputs
• Irrigation management
• Nitrogen management practices
Enter the Assessor’s Parcel Number (APN) and County for each parcel associated with your plan.
Enter the Crop name (almonds, walnuts, table grapes, wine grapes, raisin grapes, watermelons, canning
tomatoes, fresh market tomatoes, etc.). Check with your Coalition regarding specific crop naming
conventions. If you have a permanent crop, enter the Crop Age (in years).
Enter the Irrigated Acres for each parcel or portion of parcel to which this plan applies.
Sum the irrigated acres from each parcel for the Total Acres covered under the plan.
INMP Worksheet Instructions
Last Updated on October 16, 2018 Page 2
Use the Comment/Notes box to provide any further information that may be pertinent to the
worksheet (e.g. nitrogen use efficiency, nitrogen removal rates, reasons for substantial differences
between plan and actual numbers, etc.).
IRRIGATION MANAGEMENT
*Items with an asterisk shall be submitted to the Coalition on the INMP Summary Report.
Irrigation Method* (1). Check the box to indicate the irrigation method used the most for crop irrigation
(primary irrigation) during the growing season for the field/management unit under this plan. If
applicable, indicate any secondary irrigation systems. Secondary irrigation systems include those used
for crop germination, frost protection, crop cooling, or salinity management.
Crop Evapotranspiration (2). Enter the potential crop evapotranspiration (ETc) in inches anticipated for
the season. Evapotranspiration rates are provided by geographical location, and multiplied by a crop-
specific coefficient to estimate the amount transpired by your crops. This information and additional
resources may be available from your Coalition.
Anticipated Crop Irrigation (3). Enter the amount of irrigation water in inches expected to be applied
over the course of the season. This information and additional resources may be available from your
Coalition.
Irrigation Water N Concentration (4). Enter the concentration of nitrogen in the irrigation water used
on your crop as parts per million (ppm) or milligrams per liter (mg/L). The concentration of nitrogen in
your irrigation water can be obtained from sources such as local district testing, laboratory analysis, or
other sources. These results can be reported as either Nitrate as N, nitrate-nitrogen, or NO3-N.
Irrigation Efficiency Practices* (5). Check all boxes that apply to indicate irrigation efficiency practices
used on your fields during the season. Indicate if, to your knowledge, the parcels have been laser
leveled.
HARVEST/YIELD INFORMATION
*Items with an asterisk will need to be submitted to the Coalition on the INMP Summary Report.
Production Unit* (6). This is the standard unit that is the basis for your nitrogen management planning
(tons, pounds, bins, cartons, bales, etc.); refer to your Coalition for specific production unit lists. If you
use a production unit that is not pounds or tons, please provide the weight of the reported unit (i.e. “28
lb lug boxes” instead of “lug boxes”), as crops often have multiple possible harvest production units.
Harvested Yield* (7). This includes all crop yield harvested for the season. For pre-season planning, use
Box 7A to fill in the Expected Yield for the season. The Expected Yield should be reported on a per-acre
basis for the field or management unit covered by the plan. Expected Yield expectations will guide
nitrogen management decisions and will inform the TOTAL NITROGEN Recommended (14A) to be used
in the Nitrogen Management section below. If you grow grain crops and harvest straw separately,
contact your Coalition.
NITROGEN MANAGEMENT
*Items with an asterisk will need to be submitted to the Coalition on the INMP Summary Report.
INMP Worksheet Instructions
Last Updated on October 16, 2018 Page 3
Nitrogen Efficiency Practices* (8). Check all boxes that apply to indicate any nitrogen efficiency
practices used on your fields during the season.
Recommended/Planned N (Column A): Complete the boxes in the Nitrogen Sources section in Column
A based on the anticipated Nitrogen Sources required to obtain the Expected Yield from Box 7A. The
values listed in Column A require certification. Use crop recommendations from CDFA, UCCE, NRCS,
commodity organizations or site-specific knowledge to appropriately estimate the amount of nitrogen
(N) necessary. Use Recommended/Planned N totals for each source of N and schedule applications for
the crop year. Use additional tools/spreadsheets to plan timing for each application. Proper scheduling
of N applications and irrigations is essential for efficient nitrogen management.
Recommended / Planned TOTAL NITROGEN (14A): All Nitrogen Sources in this section should be the
total for Recommended / Planned TOTAL NITROGEN (14A).
Recommended / Planned TOTAL NITROGEN (14A) = 9A + 10A + 11A + 12A + 13A.
Complete the following sections based on the nitrogen source:
• Soil – Available N in Root Zone (9A and 9B). Represents nitrogen in the soil root zone that is
available to the crop during the growing season. Enter the amount of residual soil nitrogen
based on soil samples or other available data.
• N in Irrigation Water (10A and 10B*). Enter the amount of nitrogen applied via irrigation water
over the course of the crop year in pounds per acre. For planning (10A), this value is calculated
based on the Anticipated Crop Irrigation (3) and the Irrigation Water N Concentration (4). For
the Actual N column (10B), this value is calculated based on the actual crop irrigation and
irrigation water N concentration. To calculate N in irrigation water, use the following formula:
N concentration (ppm or mg/L) x inches of irrigation applied x 0.226
Nitrate as nitrogen is also referred to as Nitrate as N, nitrate-nitrogen, or NO3-N.
• Organic Amendments (11A and 11B*). Organic Amendments include any nutrient applications
from sources that do not have a guaranteed nutrient content, such as compost and manure
applications. Applied organic amendments should be reported as the amount of nitrogen
available to the plant during the crop year, in pounds per acre.
• Dry/Liquid Fertilizer N (12A and 12B*). The Dry/Liquid Fertilizers include any nitrogen-
containing product with a guaranteed nutrient content. This number should be reported as the
amount of nitrogen applied as pounds per acre; this may be different than the amount of
fertilizer applied which may include other nutrients.
• Foliar Fertilizer N (13A and 13B*). Foliar nitrogen applications include any nitrogen-containing
product applied to the crop canopy or above ground plant parts, and should be reported in
pounds per acre.
Actual N (Column B): Fill in the Actual N (Column B) based on actual applied nitrogen amounts. This
should be completed after the crop is harvested for each of the nitrogen sources outlined above. These
values do not require certification. Use the Recommended/Planned N schedule to guide nitrogen
applications throughout the growing season. Actual application amounts and timing can be adjusted
INMP Worksheet Instructions
Last Updated on October 16, 2018 Page 4
based upon changing conditions (weather, pest damage, expected yield, tissue samples, etc.). The
information in this column should reflect the actual application during the Crop Year. Refer to the
Nitrogen Source section above for additional instructions and definitions.
Actual TOTAL NITROGEN (14B): Actual applied Nitrogen Sources should be the total for Actual TOTAL
NITROGEN (14B).
Actual TOTAL NITROGEN (14B) = 9B + 10B + 11B + 12B + 13B.
INMP CERTIFICATION
Plans for parcels in a High Vulnerability Area (HVA) to groundwater must be certified. Please contact
your Coalition for more information regarding the vulnerability to groundwater of your parcels. The
person certifying the plan must complete the INMP Certification section including signature, date, and
method of certification. Any plan certifier should also initial the INMP Worksheet page in the box in the
bottom right corner.
Any INMP requiring certification must be certified by an Irrigation and Nitrogen Management Specialist,
such as:
• Crop Advisers certified by the American Society of Agronomy (CCA). Any Certified Crop Adviser
who certifies an INMP must also have completed the nitrogen management training program
offered by the University of California Agriculture and Natural Resources (UCANR) and the
California Department of Food and Agriculture (CDFA).
• Certified Professional Soil Scientists (CPSS)
• Certified Professional Agronomists (CPAg)
• Technical Service Providers (TSP) certified in nutrient management in California by the Natural
Resources Conservation Service (NRCS)
• Certified Agricultural Irrigation Management Specialists (CAIS) certified by The Irrigation
Association.
Additionally, plans may be self-certified by the Member if:
• The certifying Member has attended the California Department of Food and Agriculture (CDFA)
or other approved training program for INMP certification. The Member must retain written
documentation of their attendance in the training program.
• The certifying Member adheres to a site-specific recommendation from the Natural Resources
Conservation Service (NRCS Nutrient Management Plan) or the University of California
Cooperative Extension (UCCE). The Member must retain written documentation of the
recommendation.
If you do not apply nitrogen fertilizer:
• You must state that you do not apply nitrogen fertilizer to the field on your INMP Worksheet.
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