Brinjal (Baingan) Farming in India: Season, Varieties, Spacing, Fertiliser, Pests, Diseases, Yield, Cost and Profit per Acre

Brinjal is a warm-season crop that needs a frost-free spell. Nursery seedlings are ready in 4 to 6 weeks; sow in mid June for the kharif crop, end September for rabi and mid January for the spring-summer crop (NHB). Plant 60 x 60 to 90 x 60 cm apart, put in 25 t per ha of FYM (about 10 t per acre) and split the nitrogen. Expect 20 to 30 t per ha from open-pollinated varieties and 60 to 80 t per ha from hybrids under TNAU trial conditions; a Maharashtra grower survey averaged 15.8 t per ha at a cost of about Rs 61,400 per acre. The big losses are shoot and fruit borer, little leaf, bacterial wilt and Phomopsis. Pick resistant varieties, rotate away from tomato, potato and okra, and remove infested shoots every week.

Brinjal (baingan, eggplant) is a self-pollinated warm-season vegetable that originated in India and is grown across the country on both small plots and commercial farms. The crop is raised from seedlings, planted into a prepared field and picked repeatedly for several months, so it rewards steady care more than one big input.

The NHB lists Uttar Pradesh, Odisha, Bihar, Assam, West Bengal, Maharashtra and Karnataka as major producing states. The plant is an erect bush that usually reaches 45 to 60 cm, with oval to long purple or green fruits. Because it is picked every few days, it brings cash flow early, which is why small growers like it.

A brinjal crop has five phases: a 4 to 6 week nursery, field preparation and transplanting, vegetative growth and flowering, a long fruiting and picking period, and a short clean-up before the next crop. Most of the problems in this guide start in the first two phases, which is why they get the most space here.

Brinjal grows best in loose, well-drained silt loam or clay loam rich in organic matter, with a pH around 6.0 to 6.8 (NHB). It needs a long warm season and is very sensitive to frost. NHB says growth is badly affected below 17 degrees C, and the crop grows up to about 1,200 m above sea level.

Treat 17 degrees C as the lower safe limit for growth and keep young plants away from frost. In the plains of north India that is why the winter crop is raised under low tunnels or skipped, and the spring-summer crop starts only after the worst cold has passed.

Before you plan manure and lime, get the soil tested. Our post on how to read your soil health card shows where to find pH, organic carbon, phosphorus and potassium so you can adjust the fertiliser plan below.

NHB gives three nursery windows: sow in the second week of June for the kharif crop (transplant July to August), at the end of September for the rabi crop (transplant October to November), and in the second week of January for the summer crop (transplant February). The right window depends on frost risk and rainfall in your area.

Do not copy one calendar for the whole country. Frost-prone districts in Punjab, Haryana and the hills cannot take the rabi window as printed, and warm coastal districts can run the crop most of the year. Ask your KVK or state horticulture department which window they recommend for your block, because the exact window changes from block to block.

Two practical points. First, match the sowing date to your market: a crop that starts picking when supply is low usually earns more than one that peaks with everyone else, but the price is not guaranteed and only your local mandi can tell you the pattern. Second, avoid transplanting into a heavy rain forecast, because waterlogged seedlings are an open door for wilt and damping off.

Choose by market shape and colour first, then by disease tolerance. For bacterial wilt areas, pick a wilt-resistant type such as the IIHR Arka Nidhi, Arka Keshav or Arka Neelkanth. For little leaf, the IARI Pusa Purple Cluster is noted as resistant. Hybrids out-yield varieties but cost more in seed and need better feeding.

The table is from the NHB varieties page. The Assam package adds notes on Pusa Bhairav (resistant to Phomopsis blight), Pant Samrat (resistant to fruit and shoot borer and bacterial wilt, recommended for wilt-endemic areas), and BB-7 and BWR-34 (tolerant to bacterial wilt). Use the yields to compare varieties with each other, not to promise a harvest.

For hybrids, seed from a private company is sold under brand names that change often, so ask your KVK which hybrids performed in trials near you, and buy sealed packs with a germination date. If you farm in a wilt-prone field, a resistant variety saves more money than any spray.

Plough the field four to five times to a fine tilth with gaps between ploughings, level it with a plank, then work in well-decomposed FYM. Make beds and channels, or ridges and furrows, depending on soil. Irrigate the field 3 to 4 days before transplanting so seedlings go into moist soil (NHB).

• FYM. TNAU recommends 25 t per ha before ridging, which is about 10 t per acre. The Assam package uses a lower 10 t per ha. Pick the rate by your soil test and how much FYM you can actually get, and make sure it is fully decomposed.
• Ridges and furrows. TNAU forms ridges and furrows 60 cm apart and transplants on the ridges. NHB says to transplant in furrows in light soils and on the side of ridges in heavy soils.
• Biofertiliser mix. TNAU mixes 2 kg per ha each of Azospirillum and Phosphobacteria with 50 kg of FYM and applies it in the main field at planting.
• Lime. In acid soils, the Assam package suggests liming at 20 q per ha every three years, based on a soil test, at least 30 days before planting.
• Rotation. Avoid planting brinjal after brinjal, tomato, potato or okra. See the sections on wilt and Phomopsis for why, and our post on crop rotation examples and plans for a workable sequence.

If you prefer to build the soil biologically before transplanting, Katyayani sells a Brinjal Unnati Organic Kit. Its page lists per-acre doses: NPK Bio Consortia 1.5 to 2 kg (mixed with compost or as a soil drench at soil preparation), Trichoderma viride 1 to 2 kg at planting, Bhumiraja VAM 4 to 8 kg mixed with compost and broadcast at soil preparation, Metarhizium anisopliae 1 to 2 kg against root-damaging pests, and humic plus fulvic acid 2 kg. Calcium Solubilizing Bacteria goes on at 5 to 10 ml per litre of water every 10 to 15 days. Read the pack label for strain and CFU details.

Sow treated seed thinly in raised beds, about 7.2 x 1.2 m and 10 to 15 cm high, in rows 5 to 7 cm apart and 2 to 3 cm deep. Cover with straw until germination, then remove it. Seedlings are ready in 4 to 6 weeks, at about 15 cm tall with 2 to 3 true leaves (NHB).

Damping off is the nursery killer. NHB notes it is worst in the rainy season with high soil moisture and moderate temperature, and that raising a nursery on the same plot year after year should be avoided. Soil solarisation under 250 gauge polythene for 30 days before sowing and a Trichoderma viride application are also listed as effective. Raised beds drain better, which is why NHB calls them necessary on heavy soils.

Dip seedling roots in a fungicide solution before planting if you have had wilt or root rot in the past, and transplant in the evening so the plants recover overnight (NHB). Our explainer on fungicide application methods covers seed, drench and spray use if you are new to it.

TNAU recommends 60 x 60 cm for varieties and 90 x 60 cm for hybrids. NHB gives 60 x 45 cm for long-fruited, 75 x 60 cm for round and 90 x 90 cm for high-yielding types. The Assam package uses 75 x 60 cm. Wider spacing suits tall, heavy-bearing hybrids and gives air movement that helps against leaf spots.

Plants per acre are calculated as 4,047 square metres divided by the area per plant and rounded. They are a planning guide for how many seedlings to order and raise, not a recommendation. Always raise 10 to 15 percent extra seedlings to fill gaps after transplant shock. Closer spacing raises early yield per acre on paper, but it also keeps leaves wet longer, which favours fungal leaf spots and makes picking and spraying harder.

Dose depends on soil test, FYM and crop type. TNAU gives FYM 25 t per ha plus NPK 50:50:30 kg per ha for varieties, with 50 kg N per ha top dressed. For hybrids it is NPK 100:150:100 kg per ha plus 100 kg N top dressed. NHB and Assam differ, so use your state rate.

The spread is wide (50 to 150 kg N per hectare for varieties) because the sources are different state systems and soil conditions. Use the table to see the pattern: a little at planting, then feed again when the plant starts to flower, and again after picking begins.

• Convert to bags. Divide the kg of nitrogen you need by 0.46 to get kg of urea, and divide phosphate by the P2O5 percentage on the bag. For example, 20 kg N per acre is about 43 kg urea (calculated).
• Start with a soil test. If phosphorus and potassium are already high, you can cut the basal dose. If sulphur or zinc is low, add it. See reading your soil health card.
• Feed on time. Brinjal bears for months, so one big dose at planting is not enough. Match each top dressing to a stage: 20 to 30 days, early flowering, and after the first picking.
• Drip growers. Split the same nutrient quota into weekly or fortnightly fertigation. Our guide to water-soluble fertiliser for drip users explains grades and compatibility.

NHB says to keep a continuous supply of moisture around the roots: a light irrigation on the first and third day after transplanting, then every 8 to 10 days in winter and every 5 to 6 days in summer. A Bihar trial found drip raised fruit yield by 40 percent over furrow irrigation.

The ICAR trial in Bihar ran for three seasons (2014-15 to 2016-17) on silty clay loam. Drip increased brinjal fruit yield by 40 percent over furrow irrigation. Black polyethylene mulch increased yield by 44.6 percent over unmulched plots, which gave 26 t per ha. Drip plus mulch reached 44.45 t per ha. The same treatment saved 34 percent water (reported for tomato and brinjal together) and gave a water productivity of 13.9 kg per cubic metre for brinjal. The variety Swarna Shobha did better than the others tested, with or without drip or mulch.

One caution: the numbers come from one research station with controlled water and good management. A farmer's field with uneven emitters or poor filtration will not match them. Drip pays best where water is short, soils are light and you can manage fertigation. If you are still on flood irrigation, the biggest win is not letting water stand around the stem, because waterlogging invites wilt and collar rot.

Katyayani's Brinjal Unnati Drip Kit is made for drip growers. Its label doses per litre of water are: Bio NPK 2 to 3 ml through drip every 10 to 15 days, Trichoderma viride 2 to 3 ml through drip or as a drench every 15 days, Metarhizium anisopliae 2 to 3 ml through drip or as a foliar spray every 15 to 20 days, Calcium Solubilizing Bacteria 2 to 3 ml through drip every 15 days and mixed micronutrients 3 to 4 g as a foliar spray every 15 to 20 days. For the VAM and seaweed extract in the kit, follow the pack label.

Black plastic mulch cuts weeds, saves water and, in the Bihar trial, lifted yield by 44.6 percent over bare soil. TNAU specifies black LDPE sheets of 25 micron thickness with both ends buried 10 cm deep. Without mulch, NHB advises two to three hoeings with earthing up and hand weeding at 30 days.

Weeds matter most in the first month, when the seedlings are small. NHB says weeds compete with the crop and reduce yield drastically, and advises frequent shallow cultivation because deep cultivation injures roots. TNAU lists pre-emergence herbicides followed by one hand weeding at 30 days after planting; check that any herbicide you use is registered for brinjal and follow its label.

• Lay the mulch before transplanting, with drip lines underneath, and punch holes at your chosen spacing.
• Use black, not clear, film. Clear film warms the soil but lets weeds grow underneath.
• Organic option. Paddy straw or crop residue works in dry areas and adds organic matter. Our post on mulching types, depth and common mistakes compares plastic and organic mulch.
• Remove the film after the crop and do not burn it. Collect it for recycling.

Tall, heavy-bearing plants, especially hybrids, often lean or snap under fruit load and wind. A stake beside each plant keeps stems upright, keeps fruit off the soil and makes spraying and picking easier. Do it early, so you do not damage roots later.

• When. Place stakes at the time of earthing up, before the plants get heavy with fruit.
• What. A bamboo or wooden stake beside each plant, tied loosely with soft jute or cloth strips. Avoid thin wire that cuts the stem.
• Which plants. Hybrids such as Arka Navneet, whose fruits weigh about 450 g each (NHB), need support more than dwarf varieties like Pusa Kranti.
• Earthing up. Pull soil around the base. TNAU and NHB both include earthing up, and it also anchors the plant and covers surface roots.

Shoot and fruit borer (Leucinodes orbonalis) is the main insect problem. Pink larvae bore into the tips, causing withering shoots, and later into fruits, making them unsellable. The best control combines weekly removal of infested shoots and fruit, rotation, pheromone monitoring and rotated sprays chosen from the registered list, not repeated sprays of one chemical.

The NHB pest page says damage starts soon after transplanting and continues until harvest. The female lays eggs on leaf undersides, flower buds and young fruit; larvae bore into shoots first, then fruits. NHB advises avoiding continuous brinjal on the same land, clipping and destroying affected shoots with the insect, picking and destroying bored fruits, and removing affected fruits before spraying.

The Odisha IPM module study (Keonjhar, kharif 2009 and 2010) compared packages against farmers' routine spraying. The best one combined a soil application of cartap hydrochloride 4G at 1 kg active per hectare two weeks after transplanting, a coriander intercrop in a 3:1 ratio, alternate sprays of indoxacarb and chlorantraniliprole at 10-day intervals, and regular collection and destruction of infested shoots and fruits. It reduced shoot damage by 84.11 percent, flower bud damage by 77.06 percent and fruit damage by 77.44 percent, and gave 231.02 q per ha of marketable fruit with a net return of Rs 1,09,878 per ha. Check each product's current registration and label before copying a module.

For a biological, low-residue plan, the post on biopesticides: types, examples and limits explains what neem, Bt, Beauveria and Metarhizium products can and cannot do.

These sucking pests weaken plants, spread disease and are worst in hot, dry spells. Scout the underside of leaves twice a week. Keep the field weed-free, avoid water stress, remove heavily infested leaves, and spray only when numbers rise, rotating products. Jassids matter most because they spread little leaf.

For mites, the Dehradun study notes that India had no registered acaricide that kills all life stages (eggs, nymphs and adults). Hexythiazox was ovicidal and propargite was adulticidal, and three applications of each gave a clear gain in mite control, yield and profit. The practical lesson is to use two different acaricides in sequence so you hit eggs and moving stages, and to confirm brinjal registration before use. Our post on mites in cotton explains how to scout red spider mite and rotate acaricides, and the logic carries over.

Control of jassids is also a little leaf strategy. NHB lists several old sprays; we do not repeat them because registration has changed. Use a current registered product on the label for brinjal, and combine it with weeding and early removal of diseased plants. Neem-based sprays are a common first step, so follow the pack for dose.

For whitefly, a two-year Punjab Agricultural University trial (2019 and 2020) compared six modules built from alternate-host removal, marigold or maize border rows, yellow sticky traps, Chrysoperla releases and sprays of azadirachtin 1 percent and diafenthiuron. Every module cut whitefly numbers against the untreated plots. The module with the highest net return was yellow sticky traps plus two need-based azadirachtin 1 percent sprays; the authors recommend about 100 traps per hectare and about 1,000 ml of azadirachtin 1 percent per hectare per spray.

Little leaf is a serious disease where plants turn bushy, with tiny leaves, short petioles and no fruit. Leafhoppers (jassids) spread it. There is no cure, so use tolerant varieties, remove sick plants early, control weeds and leafhoppers, and avoid planting next to an older infected brinjal crop. Pusa Purple Cluster is noted as resistant.

The NHB disease page describes early symptoms as light yellow leaves that shrink and become malformed. Infected plants are shorter and very bushy, with many branches and axillary buds. Flower parts are deformed so the plant is sterile; any fruit that forms is hard and tough. The page names the vectors as Cestius (Hishimonus) phycitis and Amrasca biguttula biguttula. It also lists sanitation, removing volunteer crop plants from a previous planting, trap-crop barriers, early removal and destruction of infected plants, and adjusting sowing time to avoid the main leafhopper flights.

Little leaf is caused by a phytoplasma, a wall-less organism that lives in the plant's sap, and the TNAU Madras Agricultural Journal paper placed the Tamil Nadu samples in the clover proliferation group by gene sequencing. Leafhoppers carry it from plant to plant, so the field advice is to control the leafhopper and take out diseased plants. Resistant varieties noted in the NHB and Assam pages include Pusa Purple Cluster (resistant to little leaf under natural conditions) and Pusa Purple Round (resistant to shoot borer and little leaf, Assam package); Pusa Purple Long is moderately tolerant.

• Walk the field weekly and pull any plant with tiny bunched leaves, bagging it before carrying it out.
• Weed the borders. Alternate weed hosts help the leafhopper carry over between crops.
• Do not raise seedlings near an older, infected crop.
• Plan your rotation so the next brinjal does not follow this one on the same land.

Bacterial wilt makes the whole plant, or a branch, wilt, yellow and dry out, sometimes suddenly. Once it appears, remove the plant. Prevention is rotation away from brinjal, tomato, potato and okra, drainage, clean seedlings and resistant varieties. Arka Nidhi, Arka Keshav, Arka Neelkanth and Pant Samrat are listed as resistant or recommended for wilt areas.

NHB describes bacterial wilt as severe in brinjal. Control advice on the page is to remove and destroy affected plant parts, use resistant varieties, avoid rotation with bhendi, tomato and potato, and dip seed before sowing in Streptocycline solution (1 g in 40 litres of water for 30 minutes). The Assam package also lists soil drenching with streptomycin at 100 ppm for endemic areas. Antibiotic recommendations change, so confirm what your state department currently allows before you use one.

Our post on crop rotation shows a rotation plan, for example following brinjal with a cereal or a pulse for at least a season or two before returning to a solanaceous crop. The Trichoderma viride in Katyayani's Brinjal Unnati Organic Kit is aimed at fungal diseases, so it does not treat bacterial wilt; protection comes from rotation, drainage and resistant varieties.

Phomopsis blight causes seedling damping off, round grey-brown leaf spots and sunken rotting spots on fruit. Use clean seed, treat seed, rotate, destroy infected residue and choose a tolerant variety such as Pusa Bhairav. Cercospora leaf spot causes angular grey-brown lesions and leaf drop; remove affected parts and spray a registered fungicide.

The NHB disease page says Phomopsis infects seedlings and causes damping off, and in the field causes small circular leaf spots with blackish margins, blighting of stems and sunken, dusky spots on fruit that merge and rot the flesh. Control starts with field sanitation, destruction of infected plant material, crop rotation and treated seed (thiram at 2 g per kg of seed). The page lists mancozeb-type and copper sprays; check which products are registered for brinjal now. For Cercospora, NHB lists chlorotic angular lesions turning grey-brown, premature leaf fall and lower fruit yield, with removal of affected parts followed by a registered fungicide spray.

Phomopsis is the one that follows you into storage and the market, because infected fruits rot after picking. Pick and bury rotten fruit, do not leave them in the field, and avoid overhead irrigation late in the day. For wider disease logic across solanaceous crops, see our IDM guide for chilli.

Plan on picking every 4 to 10 days, depending on variety and season. TNAU says harvest begins 55 to 60 days after transplanting for early types, with tender fruit picked every 4 to 5 days; NHB gives 120 to 130 days from sowing to first picking for later types, with picks every 8 to 10 days. Pick when the fruit has reached market size and glossy colour, before the skin dulls or seeds harden.

For vegetable use, pick at the tender stage: fruit that turns dull, bronze or tough is seed-ripe and sells poorly. Retain a small part of the calyx and stalk on the fruit and cut with secateurs or a knife, not a twist, so you do not tear the branch. Picking often keeps the plant producing; overripe fruits left on the plant slow new flowering.

• First picking. About 55 to 60 days after transplanting for early types (TNAU). Pusa Ankur is listed for first picking 45 days after transplanting and Vaishali within 60 days (NHB).
• Keep going. TNAU lists a first ratoon crop at 45 t per ha and a second at 40 t per ha for hybrids, but ratooning needs disease-free plants and extra feeding.
• Storage. NHB says fruits keep 1 to 2 days in shade in summer and 3 to 4 days in winter. In cold storage at 7 to 10 degrees C and 85 to 95 percent relative humidity they keep 7 to 10 days.
• Grading. The Bureau of Indian Standards has three grades: Super, Fancy and Commercial (NHB).

It depends on variety, season and management. TNAU gives 25 to 30 t per ha for varieties and 60 to 80 t per ha for hybrids (about 10 to 12 t and 24 to 32 t per acre). NHB gives 20 to 30 t per ha as a general average. Farm surveys land lower than trials.

The gap between 6.4 t per acre on real farms and 24 to 32 t per acre in hybrid trials is the honest answer to why farmers' profits vary. Disease, borer damage, water stress and missed top dressings eat most of that gap. Online articles often quote 100 quintals or more per acre with no source; the figures here come from the sources named.

A survey of 90 growers in Akola, Maharashtra (2018-19) found an average total cost of Rs 151,779 per hectare, which is about Rs 61,400 per acre, an average yield of 157.95 q per hectare (about 6.4 t per acre) and a benefit-cost ratio of 1.58. Your own result depends on the price you get.

Source: Journal of Pharmacognosy and Phytochemistry, Akola district survey. The Odisha IPM study reported a net return of Rs 1,09,878 per ha (about Rs 44,500 per acre) in 2009-10 with 231.02 q per ha under a strong borer-control package; those prices are old and not comparable with today.

Worked example: profit per acre at three selling prices

The table uses the Akola average cost (Rs 61,400 per acre) and average yield (6,400 kg per acre). The selling prices are example inputs, not market rates. Replace them with the mandi rate you actually see.

Build your own sheet with five lines: seedlings and seed, FYM and fertiliser, plant protection, labour (planting, weeding, staking, picking) and irrigation or mulch. Then divide total cost by expected kilograms to get your break-even price per kg, and compare it with the mandi rate you actually see in the months you will be picking. Picking labour is the line first-time growers underestimate, since brinjal is picked every few days for months.

If you plan a protected structure, our post on greenhouse farming costs, types and profit gives the cost side, and brinjal is one of several crops people try there.

Conclusion

Brinjal rewards growers who get five things right: a healthy nursery, a rotation away from tomato, potato and okra, a split fertiliser plan, a weekly walk to clip borer-infested shoots and pull diseased plants, and a variety chosen for the disease that hurts you most. Use NHB, TNAU and your state package for the base plan, treat trial yields as ceilings, and work out your own break-even price per kg before you plant. Where sources disagree, ask your KVK.