Approved Organic Inputs in India — What's Allowed Under NPOP

Understanding which inputs are allowed under NPOP is not just regulatory compliance — it is the foundation of your organic farming system. NPOP Annex 1 is the official list of fertilisers, soil conditioners, pest control substances, and other inputs permitted under India’s national organic certification programme. Using any input not on this list, even accidentally, is a certification violation that can result in suspension or cancellation of your certificate.

This guide explains the major categories of allowed inputs, the prohibited substances, the grey areas that confuse even experienced organic farmers, and how to verify whether a commercial product is NPOP-compliant before you buy it.

Category 1 — Biofertilizers

Biofertilizers are microorganism-based products that support plant nutrition through biological processes. All standard biofertilizers are allowed under NPOP Annex 1:

• Rhizobium — fixes atmospheric nitrogen in legume root nodules. Essential for pulses, beans, and groundnut.
• Azospirillum — free-living nitrogen fixer, beneficial for cereals especially paddy and millets.
• Azotobacter — nitrogen-fixing bacteria for non-legume crops.
• PSB (Phosphate Solubilising Bacteria) — releases locked phosphorus from soil minerals, reducing the need for phosphate inputs.
• VAM (Vesicular Arbuscular Mycorrhiza) — fungal networks that dramatically extend root reach for water and nutrient uptake.

These inputs must be sourced from reputable suppliers and purchase bills retained. Most state government KVKs and agricultural universities sell quality biofertilizers at subsidised prices.

Category 2 — Plant-Based Preparations

Plant-derived inputs are among the most widely used in organic farming:

• Neem oil and neem cake — approved for both pest management (azadirachtin as active compound) and soil amendment (neem cake as slow-release nitrogen source)
• Pongamia (karanja) cake — soil amendment and mild insecticidal properties, approved under Annex 1
• Pyrethrum (extracted from chrysanthemum flowers) — contact insecticide, allowed with restrictions
• Jeevamrit and panchagavya — traditional fermented preparations using cow dung, urine, and plant material. Fully allowed and encouraged.
• Fish emulsion — allowed when produced without synthetic preservatives

Category 3 — Mineral Inputs

Several mined or mineral inputs are allowed, often with conditions:

• Rock phosphate — allowed as a direct soil amendment; preferred over processed phosphate fertilisers
• Agricultural lime (calcium carbonate) — allowed for pH adjustment; widely used in acidic Karnataka soils
• Gypsum (calcium sulfate) — allowed for soil conditioning and sulfur nutrition
• Sulfur — allowed for disease management (particularly powdery mildew) and as a nutritional input, but overuse can acidify soil
• Potassium sulfate derived from natural sources — allowed, but potassium chloride (muriate of potash, MOP) is NOT

Category 4 — Biological Controls

Microbial and biological pest control agents are fully embraced under NPOP:

• Trichoderma viride and T. harzianum — soil fungi that suppress pathogenic fungi including Fusarium, Pythium, and Rhizoctonia
• Beauveria bassiana — entomopathogenic fungus that infects and kills insect pests including stem borers and white grubs
• NPV (Nuclear Polyhedrosis Virus) — species-specific viral biopesticide, particularly effective against Helicoverpa (pod borer)
• Pseudomonas fluorescens — bacterial biocontrol agent for soil-borne pathogens
• Bacillus thuringiensis (Bt) — allowed only for naturally occurring strains used as spray; GMO Bt (as in Bt cotton seeds) is strictly prohibited

Prohibited Inputs — Absolute No-Go

These are categorically prohibited under NPOP with no exceptions:

• All synthetic pesticides (organophosphates, pyrethroids, neonicotinoids, herbicides, fungicides)
• All synthetic fertilisers (urea, DAP, MOP, NPK compounds, ammonium sulfate)
• Sewage sludge or industrial effluent as a soil amendment
• Genetically modified organisms or any input derived from GMOs
• Growth hormones and synthetic growth regulators
• Chlorine-based disinfectants for crop washing (some exceptions for post-harvest water treatment)

Grey Areas — Inputs That Confuse Farmers

Copper sulfate (blue vitriol): Allowed under NPOP but with a strict maximum of 6 kilograms of copper per hectare per year. It is used in bordeaux mixture (copper sulfate plus lime) for fungal disease management, particularly downy mildew on grapes and leaf spot diseases. Exceeding the limit is a violation, so measure carefully and record every application.

Potassium permanganate: Allowed for post-harvest dipping of roots and tubers to prevent rot during storage. Not allowed as a soil drench or foliar spray in large quantities. Inspectors have flagged this — be specific about how you use it.

Vermicompost from mixed waste: If the worm feedstock includes municipal waste, hospital waste, or industrial effluent, the vermicompost may be contaminated. Use vermicompost made only from farm waste, crop residue, and food waste from known sources.

How to Verify a Commercial Product

When a sales representative shows you a product labeled “organic” or “bio,” do not assume it is NPOP-compliant. Here is how to verify:

1. Look for the text “Listed under NPOP Annex 1” or “NPOP approved” on the label. This is the clearest indicator.
2. Cross-check the active ingredient against the Annex 1 list (available on the APEDA website).
3. Call your certifying body and read them the product label — they will confirm whether it is permitted under your certification.
4. Never use a product that mixes an allowed ingredient with a synthetic carrier, emulsifier, or synergist that is not on the approved list.

Ready to start your organic farming journey?

Get everything you need from our store — seeds, bio-inputs, and farm tools.

Shop Organic Mandya →