Recommendation Details - Arable

1. Purpose of the Page

The Recommendation Details page provides a full record of crop nutrient recommendations for a specific farm and year. It is designed to help users:

• Review soil and crop nutrient requirements.
• Record manure applications and fertiliser plans.
• Track nutrient balances and compliance with closed periods.
• Optimise fertiliser use for efficiency and sustainability.

2. Key Sections

🔹 Field Information

• Field Name / Area (Ha) – e.g., 0533 → 3.37 ha.
• Soil Type & pH – recorded for some fields (e.g., Field 0869 → pH 6.2).
• Nutrient Indices (P, K, Mg) – soil test values for each field.
• Previous Crop – e.g., Spring Triticale.
• Grass History – whether grass was present in the last 3 harvest years.

🔹 Crop Details

• Crop Group: Forage.
• Crop Name: Forage Maize.
• Sowing Date: 01/03/2026.
• Expected Yield: 50 t/ha.
• Crop Offtake: Nutrient removal (e.g., P₂O₅: -70 kg/ha, K₂O: -220 kg/ha).

🔹 Nutrient Requirements

• Pulled from RB209 guidance.
• Example requirements:
  • N: 55 kg/ha
  • P₂O₅: 175 kg/ha
  • K₂O: 175 kg/ha
  • SO₃: 20 kg/ha
  • MgO: 0 kg/ha

🔹 Advice Notes

• Lime: Reduce lime rate if stony soils (e.g., 20% stones → reduce lime by 20%).
• Nitrogen: Up to 10–15 kg N/ha may be placed below seed at drilling; balance top‑dressed.
• Phosphate: All phosphate may be placed below seed at drilling.

🔹 Manure Applications

• Records manure type, date, rate, and method.
• Example:
  • Cattle slurry (6% DM) → 02/01/2026 → 10 m³/ha → Soil incorporated (6 hrs).
  • Cattle slurry (6% DM) → 13/01/2026 → 50 m³/ha → Band spread.
• Nutrient contributions (N, P₂O₅, K₂O, SO₃, MgO) and emissions (CO₂e, NH₃ volatilisation) are shown.

🔹 Fertiliser Applications

• Records fertiliser type, supplier, rate, and nutrient content.
• Example:
  • 01/05/2026 → Chafer 18‑9‑9 (Yara) → 333.33 l/ha → N=60, P₂O₅=30, K₂O=30.
  • 01/07/2026 → Diamond 26N 37S (Thomas Bell) → 150 kg/ha → N=39, SO₃=55.5.
• Carbon footprint and ammonia volatilisation are tracked.

🔹 Nutrient Balances

• Net Crop Nutrient Requirements: Shows remaining needs after manure applications.
  • Example: N = -20.3, P₂O₅ = -17.0, K₂O = 25.0.
• Totals:
  • From manures: N=156, P₂O₅=72, K₂O=150, SO₃=42, MgO=36.
  • From fertilisers: N=146.5, P₂O₅=123.6, K₂O=201.6, SO₃=55.5.
• Balance: P₂O₅ surplus (+53.6), K₂O deficit (-18.4).

🔹 Compliance

• Closed Periods:
  • Organic manures: 1 Oct – 31 Jan.
  • Fertilisers: 1 Sep – 15 Jan.
• Ensures applications are scheduled outside restricted windows.

3. How to Use This Page

1. Review soil and crop requirements before planning applications.
2. Record manure applications with accurate dates, rates, and methods.
3. Add fertiliser applications to meet remaining nutrient needs.
4. Check nutrient balances to avoid surpluses or deficits.
5. Monitor compliance with closed periods and NVZ rules.
6. Optimise fertiliser settings using the optimiser tool.

4. Tips for Users

• ✅ Always fetch RB209 values to ensure recommendations are up to date.
• ✅ Use advice notes to guide placement of lime, nitrogen, and phosphate.
• ✅ Track carbon footprint and ammonia emissions for sustainability reporting.
• ✅ Regularly check nutrient balances to avoid over‑application.
• ✅ Keep records current for compliance audits.