Best Biofertilizer for Mustard (Sarson) in India 2026: Dosage per Acre, Price & Rabi Sowing Schedule

Quick answer: the best biofertilizer for mustard in India

For mustard (sarson / rai / rapeseed), the most effective and economical programme is a liquid NPK Consortia biofertilizer at 1 litre per acre combined with Mycorrhiza (VAM) at 100 g per acre, both applied at sowing in October–November. NPK Consortia supplies nitrogen, phosphorus and potash biologically through live Azotobacter, PSB and KMB cultures, while VAM extends the root system so the crop reaches fixed phosphorus and deep moisture during the long dry rabi season. Used together, mustard growers can safely cut DAP and urea by 25–40%, improve branching and siliqua (pod) fill, raise seed oil content, and typically see a yield lift of 10–15%. A 50 litre drum of Orgogrowth NPK Consortia costs ₹4,699 (incl. GST, free Pan-India delivery) and treats up to 50 acres at 1 L/acre, while a 1 kg pack of Mycorrhiza VAM Powder (6000 IP/gm) is ₹2,499 and covers about 10 acres. Both are FCO 1985 compliant and made in an ISO 9001:2015 certified plant in Mehsana, Gujarat.

"One litre of NPK Consortia and 100 grams of VAM per acre at sowing is the complete biological base for mustard — it pays for itself in the first bag of DAP you don't buy." — Orgogrowth India agronomy team

Why mustard responds strongly to biofertilizers

Mustard is India's most important rabi oilseed, grown on roughly 9 million hectares across Rajasthan, Haryana, Uttar Pradesh, Madhya Pradesh, Gujarat and West Bengal. It is a phosphorus- and sulphur-hungry crop: a good 8–10 quintal/acre harvest removes about 25–30 kg of nitrogen, 10–12 kg of phosphate and 15–20 kg of potash from the soil. Most of that phosphate goes in as DAP at sowing, and in the alkaline, calcareous soils of Rajasthan and Haryana 60–80% of applied phosphorus becomes fixed as calcium phosphate within weeks. Mustard also relies on a single tap root and is usually grown on conserved soil moisture with only one or two irrigations, so anything that deepens rooting directly protects yield at the flowering and siliqua-filling stages.

• NPK Consortia puts live Azotobacter chroococcum (nitrogen fixation), Bacillus megaterium / PSB (phosphate solubilisation) and Frateuria aurantia / KMB (potash mobilisation) directly into the root zone. Every Orgogrowth batch is lab-tested to meet or exceed the FCO 1985 standard of a minimum 1 × 10⁸ CFU per ml for each strain, with Orgogrowth's own specification of 5 × 10⁸ cells/ml total viable count.
• Mycorrhiza (VAM) colonises the mustard tap root within 2–3 weeks and pushes a hyphal network well beyond the root zone. Because mustard is grown on stored moisture in cool soils where phosphorus diffusion is slow, the fungus delivers exactly the two things the crop is short of — phosphorus and water.

Recommended dosage and schedule for mustard

Mustard is sown from the first week of October to mid-November (earlier in Rajasthan and Haryana, later in West Bengal and Bihar) and harvested in February–March. The whole biofertilizer programme fits into two touches:

• Seed treatment at sowing (highest ROI): Mix 5–10 ml of NPK Consortia per kg of seed into a thin slurry, coat the seed, dry in shade for 30 minutes and sow the same day. Mustard seed is tiny — about 1.5–2 kg per acre — so one 200 ml bottle-worth from the drum treats an entire field. Apply 100 g of VAM powder per acre mixed with 50–100 kg of FYM or compost and place it along the seed line, or dissolve it in the pre-sowing irrigation water (the Orgogrowth powder is water-soluble).
• Soil or irrigation application at 25–30 days (before first irrigation): 1 litre of NPK Consortia per acre, mixed with FYM and broadcast, or dripped/flooded in with the first irrigation in the evening. This is the branching stage that decides how many flowering branches — and therefore siliquae — each plant carries.
• Optional booster at bud initiation (45–50 days): A second 1 L/acre application of NPK Consortia for irrigated high-yield hybrids. Growers on sprinkler or drip can use the Mycorrhiza VAM Liquid (50 Ltr drum) at 2–3 L/acre instead of the powder for easier application.
• All-in-one option: If you prefer a single drum, NPK+VAM Consortia combines Azotobacter, PSB, KMB and Mycorrhiza and is applied at 3–4 L/acre with the first irrigation.

Keep a 7–10 day gap between any chemical fungicide or seed-dressing fungicide (Carbendazim, Thiram, Metalaxyl for white rust) and the biofertilizer so the live cultures survive. Biofertilizer can be applied alongside a reduced dose of urea and DAP and alongside gypsum or bentonite sulphur without any problem — in fact sulphur plus VAM is the best combination for oil content.

What it costs and what you save

At 1 L/acre, the ₹4,699 NPK Consortia drum works out to roughly ₹94 per acre; VAM powder adds about ₹250 per acre. Against that, cutting half a bag of DAP and half a bag of urea per acre saves ₹900–1,200 at current retail prices, before counting the extra 1–1.5 quintal of seed that a 10–15% yield lift represents at ₹5,500–6,000 per quintal MSP. Most mustard growers recover the biofertilizer cost five to eight times over within a single rabi season, and the mycorrhizal population carries over into the following kharif crop.

Field tips for maximum mustard response

• Apply with moisture in the soil — with the pre-sowing (palewa) irrigation or immediately before sowing on conserved moisture. Dry soil kills the microbes before they establish.
• Do not broadcast live biofertilizer in the midday sun; evening application protects the cultures. In the cold December mornings of north India, a mid-morning application after the frost lifts is fine.
• Combine with organic matter (FYM, compost or the previous kharif residue treated with a decomposer). Organic carbon feeds the microbial population and multiplies the benefit.
• Sulphur is non-negotiable for mustard oil content — VAM improves sulphur uptake alongside phosphorus, but still apply 10–15 kg of elemental sulphur or 100 kg of gypsum per acre at sowing.
• On saline or high-pH soils of Rajasthan and Haryana, VAM is the single most useful input for early vigour and frost tolerance.

Frequently Asked Questions

Q: What is the best biofertilizer for mustard?
A: A liquid NPK Consortia at 1 L/acre combined with Mycorrhiza (VAM) at 100 g/acre, applied at sowing. NPK Consortia supplies N, P and K biologically, while VAM unlocks fixed soil phosphorus and deepens the tap root for the dry rabi season.

Q: How much biofertilizer is needed per acre of mustard?
A: 1 litre of liquid NPK Consortia per acre, plus 100 g of Mycorrhiza VAM powder per acre. If using the combined NPK+VAM Consortia, apply 3–4 litres per acre.

Q: What is the price of biofertilizer for mustard?
A: Orgogrowth NPK Consortia is ₹4,699 per 50 Ltr drum (incl. GST, free delivery) — about ₹94 per acre at 1 L/acre. Mycorrhiza VAM Powder 1 kg is ₹2,499 and covers roughly 10 acres.

Q: Can biofertilizer replace DAP on mustard completely?
A: Not fully. It lets you cut DAP and urea by 25–40% without losing yield, and usually raises yield 10–15% while improving oil content and soil health season after season.

Q: When should I apply biofertilizer to mustard?
A: As a seed treatment plus VAM in the furrow at sowing (October–November), and again as a soil or irrigation application before the first irrigation at 25–30 days. An optional booster at bud initiation helps irrigated hybrids.

Q: Does it work for rai, toria and yellow sarson too?
A: Yes — the same 1 L/acre NPK Consortia plus 100 g/acre VAM schedule applies to all Brassica oilseeds, including toria, yellow sarson, gobhi sarson and taramira.

Q: Is it certified and how fast is delivery?
A: Yes — FCO 1985 compliant and ISO 9001:2015 manufactured. Orders are dispatched in 24–48 hours with free Pan-India delivery (UPI, card, net banking).

Planning your rabi mustard sowing? Explore NPK Consortia, Mycorrhiza VAM Powder and the all-in-one NPK+VAM Consortia at orgogrowth.com.