Farmer's Grain Portal 👨‍🌾

Limpopo's summer rainfall window creates a primary planting period from October to December. Planting before mid-November optimizes heat unit accumulation before dry spells.

• White & Yellow Maize: Oct – Dec — Seed rate: 20 kg/ha (45 000–55 000 plants/ha under irrigation; 28 000–35 000 dryland). Row spacing: 90 cm.
• Wheat: May – Jun (Winter Irrigated) — Seed rate: 100–120 kg/ha. Cultivars: Krokodil, PAN 3497.
• Sunflower Seed: Nov – Jan — Seed rate: 4–5 kg/ha (35 000–45 000 plants/ha). Excellent rotation crop after maize.
• Sorghum: Nov – Jan — Seed rate: 7–9 kg/ha. Highly drought and heat-tolerant for Capricorn/Blouberg.
• Soybeans: Nov – Dec — Seed rate: 70–80 kg/ha. Pre-inoculation with Bradyrhizobium bacteria is vital in sandy loam soils.

Targeted moisture application prevents yield-limiting stress during critical silking and grain filling phases:

• Maize total requirement: 500–600 mm / season. Peak demand occurs at silking and tasselling (7–9 mm/day).
• Winter wheat: 450–500 mm / season. Continuous moisture during tillering and flowering.
• Drip vs Pivot efficiency: Drip achieves 90–95% water efficiency; centre pivot 80–85%; traditional furrow 55–65%.
• ⚠️ Water Rights in Limpopo Basin: Abstractions from the Levubu, Mutale, and Letaba rivers require verified DWS water licences. TBF assists members with compliance verification.

Maintaining optimal soil chemistry prevents nutrient lockup and ensures root penetration:

• Target Soil pH (KCl): 5.5 – 6.5. Soils below pH 5.0 suffer aluminium toxicity that stunts maize roots.
• Agricultural Lime: Apply calcitic or dolomitic lime at 1.5–3.0 tons/ha 6–8 weeks before summer tillage.
• Maize NPK Guideline (10 ton/ha target): Nitrogen (N) 120–160 kg/ha (split 40% at planting, 60% topdressed at V6); Phosphorus (P) 50–70 kg/ha; Potassium (K) 60–80 kg/ha.
• 🔬 ARC Soil Testing (Polokwane): Submit soil cores to the ARC Institute in Polokwane before planting for precision analysis.

Proactive IPM scouting prevents catastrophic yield destruction:

• Fall Armyworm (FAW): Scout fields twice weekly from emergence. Inspect 20 plants across 5 spots. Treat with registered insecticides (e.g., Chlorantraniliprole, Emamectin Benzoate) when 10%+ plants show active whorl feeding.
• Maize Stem Borer: Apply granular systemic treatments at 3–4 weeks post-emergence.
• Storage Weevils: Ensure grain is dried below 13.5% moisture before silo or bag storage. Treat bags with registered aluminium phosphide fumigants.

Commercial grain is priced based on the Johannesburg Stock Exchange Commodity Derivatives (SAFEX) benchmark:

• What is Silo Basis? Local grain price = SAFEX Randfontein price minus transport differential and handling. For example, if SAFEX White Maize is R3 850/t and transport to Gauteng is R400/t, your local farm-gate parity is approximately R3 450/t ex-farm.
• Storage Advantage: Selling directly off the combine during May–July flood harvests incurs seasonal price lows. Storing dry grain for 60–90 days typically captures a R200–R350/t seasonal price recovery.
• Negotiable Silo Receipts: Depositing grain in accredited silos generates a receipt that can serve as collateral for working capital.