Guide to Reporting Yield and Nitrogen Applied on the Irrigation and Nitrogen Management Plan
Reporting Harvested Yield
| Common Errors Reporting Yield | How to Report it Correctly |
|---|---|
| Using Total Yield | Report per-acre yield: Divide total yield by irrigated acres. |
| Incorrect Production Unit | Enter the units in which your per acre yield is reported (e.g. tons, pounds, bins, cartons, bales, etc.) |
| Incorrect Yield Type | Verify correct yield type in “Comments” column.
|
Reporting Nitrogen Applied
Fertilizer applications should be reported as the amount of nitrogen applied in pounds per acre. Do not report the total amount of fertilizer applied which may include other nutrients or ingredients and result in an over-estimation of your nitrogen applications.
| Nitrogen Source | Common Mistakes | Correct entry (lbs N/ac) |
|---|---|---|
| Dry/Liquid Fertilizer | Total Product Weight Used | Multiply gallons by percent of N in product (see below) |
| Organic Amendments | Total Product Weight Used | Use plant‑available N (see below) |
| Foliar Fertilizer | Reporting in Gallons | Convert to lbs N |
| Irrigation Water | Reporting in ppm(mg/L) | Multiply: ppm × inches × 0.23 N in Irrigation Water Calculator |
Reporting Organic Amendments
The amount of nitrogen applied from organic sources such as compost and manure should be reported in pounds of nitrogen per acre. Use lab data or standard conversion factors.
Plant Available Nitrogen
Organic nitrogen becomes plant-available via microbial activity, affected by temperature, moisture, and C:N ratio.
| Amendment | C:N Ratio | N available after 12 weeks | Releases N in |
|---|---|---|---|
| Yard Waste Compost | 13 – 20 | <10% | Years |
| Poultry Manure & Manure Compost | 6 – 8 | 30 – 40% | Weeks – Months |
| Blood & Feather Meal, Guano | 3 – 4 | 60 – 75% | Days |
| Cover Crop Residues | 12 – 18 | 4 – 35% | Months |
| Vegetable Crop Residues | <15 | 4 – 45% | Weeks – Months |
Conversions for Common Nitrogen Fertilizers
Below is a table of examples of how to determine the pounds of nitrogen in different fertilizer products:
| Product / Unit | Multiply by | To get: |
|---|---|---|
| UN32 / Gallons | 3.539 | lbs. Nitrogen |
| Ammonium Sulfate / Pounds | 0.21 | lbs. Nitrogen |
| Potassium Nitrate / Pounds | 0.15 | lbs. Nitrogen |
| Calcium Nitrate | 0.15 | lbs. Nitrogen |
| 15/15/15 | 0.15 | lbs. Nitrogen |
Updating Your INMP Summary Report
Step-by-Step Guide
- Log In to Member Portal: Visit the Member Portal at www.kingsriverwqc.org/account. Enter your login credentials (member ID, username and password).
- Navigate to INMP Summary Report: From the dashboard, select “INMP Summary Report” from the menu.
- Edit Your INMP Report: Click the “Edit INMP” button located in the upper left corner of your INMP Summary Report.
Click “Edit INMP” to begin editing your report.
- Update Nitrogen and Yield Information: Scroll down to the “Nitrogen and Yield Information” section. Find your specific Management Unit and click “Edit” on the far left side of the row.
Click “Edit” next to the Management Unit you need to update.
- Correct and Save Your Information: Enter the corrected value into the appropriate field. Click “Update” to save your changes.
- Review, Sign, and Submit: Enter your name and click the “Submit” button.
Reporting Organic Amendments
The amount of nitrogen applied from organic sources such as compost and manure should be reported in pounds of nitrogen per acre. Use lab data or standard conversion factors.
Plant Available Nitrogen
Organic nitrogen becomes plant-available via microbial activity, affected by temperature, moisture, and C:N ratio.
| Amendment | C:N Ratio | N available after 12 weeks | Releases N in |
|---|---|---|---|
| Yard Waste Compost | 13 – 20 | <10% | Years |
| Poultry Manure & Manure Compost | 6 – 8 | 30 – 40% | Weeks – Months |
| Blood & Feather Meal, Guano | 3 – 4 | 60 – 75% | Days |
| Cover Crop Residues | 12 – 18 | 4 – 35% | Months |
| Vegetable Crop Residues | <15 | 4 – 45% | Weeks – Months |