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Agri input business: seeds, fertilisers and agrochemicals

Agri-Business Management (BBA / B.Sc ABM) · Agri enterprises · free study notes for exams, placements and interviews

In short

The agri input business supplies the three purchased inputs that decide a crop's yield - seed, plant nutrition (fertilisers) and crop protection (agrochemicals) - through a manufacturer → distributor → retailer chain reaching roughly 2.6 lakh input retail points in India. It is the largest organised employer of agri-business graduates: territory sales, product management, agronomy support, supply chain, regulatory affairs and dealer finance roles at IFFCO, Coromandel, Chambal, Nuziveedu, Kaveri, Mahyco, Bayer, Syngenta, UPL, Rallis, Dhanuka, PI Industries, Godrej Agrovet and FMC. It is a heavily regulated and partly price-controlled trade: the Seeds Act 1966, the Fertiliser (Control) Order 1985 and the Insecticides Act 1968 govern what may be sold, by whom, and at what quality. Exams test the regulatory framework, seed classes and certification, nutrient arithmetic, dosage and formulation calculations, subsidy mechanics and channel economics; interviews test the same plus distribution, credit and seasonality.

Explained

The seed business

The fertiliser business

The agrochemical (crop protection) business

Channel, market structure and selling

Key points

Formulas and examples

Nutrient supplied (kg) = Quantity of fertiliser (kg) × nutrient content (%) ÷ 100
Fertiliser required (kg) = Nutrient required (kg) × 100 ÷ nutrient content (%)
Elemental conversion: P = P₂O₅ × 0.436; K = K₂O × 0.830 (and the reverse: P₂O₅ = P ÷ 0.436)
Cost per kg of nutrient (Rs/kg) = Price per bag (Rs) ÷ [bag weight (kg) × nutrient % ÷ 100]
Pure Live Seed, PLS (%) = Germination (%) × Physical purity (%) ÷ 100
Adjusted seed rate (kg/ha) = Recommended seed rate at 100% PLS ÷ (PLS ÷ 100)
Seed required (kg) = Seed rate (kg/ha) × Area (ha); Seed Replacement Rate (%) = Quality seed distributed ÷ Total seed requirement × 100
Seed multiplication ratio SMR = Quantity of seed produced ÷ Quantity of seed sown
Active ingredient (a.i.) = Formulation quantity × strength (%) ÷ 100 [g a.i. per litre for an SC/SL ≈ formulation ml × strength]
Pesticide per tank = Dose per ha × Tank capacity (L) ÷ Spray volume per ha (L); Number of tanks = Spray volume per ha ÷ Tank capacity
Retailer margin (%) = (MRP − Purchase price) ÷ MRP × 100; Inventory days = Average stock ÷ Annual cost of sales × 365
Dealer ROI (%) = Annual gross margin ÷ Average investment (stock + receivables) × 100

Example 1 - fertiliser schedule and cost for a recommended dose. Hybrid maize RDF = 120:60:40 kg N:P₂O₅:K₂O per ha, using DAP (18-46-0), urea (46% N) and MOP (60% K₂O).

urea 209.8 × 5.378 = Rs 1,128; DAP 130.4 × 27 = Rs 3,521; MOP 66.7 × 34 = Rs 2,268.

Example 2 - cost per kg of nutrient (why urea dominates).

FertiliserBagPrice (Rs)Nutrient in bagRs per kg nutrient
Urea 46% N45 kg24220.7 kg N11.7
DAP 18-46-050 kg1,3509 kg N + 23 kg P₂O₅42.2 (Rs 27.0 per kg of product)
MOP 60% K₂O50 kg1,70030 kg K₂O56.7

Urea N at Rs 11.7/kg against MOP K₂O at Rs 56.7/kg - a 4.8× gap that explains the nitrogen-skewed N:P:K ratio.

Example 3 - pure live seed and a seed order. Paddy seed rate 25 kg/ha at 100% PLS. A lot tests germination 85%, purity 98%.

Example 4 - spray dosage and tank calculation. Imidacloprid 17.8% SL, label dose 100 ml/ha, spray volume 500 L/ha, 15 L knapsack, area 2 ha.

Example 5 - seed production planning and SRR. A company must supply 40 t of certified wheat seed; SMR for wheat seed production is about 1:80 and seed yield in the production plot is 2.5 t/ha.

Example 6 - retailer economics. Complex 10:26:26 bought at Rs 1,320/bag, MRP Rs 1,470, sales 2,000 bags/month.

Where it is used

Interview questions

Common mistakes

Related topics

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