How to Grow Brinjal During Summer and Rainy Seasons

Brinjal (Solanum melongena L.) is one of India’s most important vegetable crops – grown in nearly every state, consumed throughout the year, and valued both nutritionally and economically. India ranks second in global brinjal production after China, with the crop accounting for over 8% of the country’s total vegetable area. Whether you’re a farmer planning a seasonal crop or a student of horticulture, understanding the complete production technology of brinjal – from soil selection and variety choice to irrigation and pest control – is essential for achieving consistent, high-quality yields.

Soil requirements and land preparation 🔗

Brinjal is a hardy crop that can adapt to a wide range of soil types, but it performs best in well-drained, fertile sandy loam soil. Sandy soils tend to produce early harvests, while clay loam and silt loam soils deliver higher overall yields. Regardless of soil type, waterlogging must be avoided as it directly causes root rot and crop loss.

The ideal soil pH for brinjal cultivation is between 5.5 and 6.6. Outside this range, nutrient absorption becomes inefficient, affecting plant health and fruit quality. Before transplanting, the field should be thoroughly ploughed 4 to 6 times to achieve a fine tilth. Well-decomposed Farm Yard Manure (FYM) at 25 tonnes per hectare should be incorporated into the soil during final tillage to improve organic content and microbial activity.

During the rainy season, it is advisable to grow brinjal on raised beds or ridges to ensure proper drainage and reduce the risk of soil-borne diseases. In undulating terrain, small pits are dug at each planting point to minimize soil erosion.

Climate and growing season 🔗

Brinjal is a warm-season, day-neutral crop and is highly susceptible to frost. A long, warm growing season with temperatures between 21°C and 28°C is most favourable for successful production. A daytime range of 22-27°C is particularly optimal for flowering, fruit set, and development.

Low temperatures during the cool season cause abnormal ovary development in flower buds, resulting in deformed fruits and poor yields. In contrast, warm-season crops show vigorous growth and begin bearing from the first flowers. Late-maturing cultivars can tolerate mild frost to some extent, but even these will show reduced productivity in cold conditions.

Brinjal can be grown throughout the year in India, with the two primary cropping seasons being Kharif (June-July sowing) for the rainy season crop and Rabi (October-November sowing) for the winter crop. For a summer crop, nursery sowing is typically done between December and January, with transplanting completed before the end of April.

Popular varieties of brinjal 🔗

India cultivates an extensive range of brinjal varieties, broadly categorized into long-fruited, round-fruited, small-fruited, and hybrid types. Choosing the right variety based on season, region, and market demand is one of the most critical decisions in brinjal cultivation.

Long-fruited varieties 🔗

Pusa Purple Long is among the most widely grown, particularly in North Indian plains – it matures in 70-80 days in winter and 100-110 days in summer, yielding around 130 quintals per acre. Pusa Purple Cluster, developed by ICAR New Delhi, produces deep purple fruits in clusters and shows moderate resistance to bacterial wilt. Arka Sheel and Arka Kusumakar from IIHR are also popular long-fruited selections with attractive, deep-purple, glossy fruits.

Round-fruited varieties 🔗

Pusa Purple Round is known for tolerance to little leaf disease and shoot and fruit borer. Punjab Bahar, developed by Punjab Agricultural University, produces round, dark purple shiny fruits with few seeds and gives an average yield of around 190 quintals per acre. Pant Rituraj is another round variety suitable for multiple seasons.

Small-fruited varieties 🔗

Several small-fruited types are grown in specific regional markets. Varieties such as Manjiri Gota and local cultivars like Banaras Giant and Wayanad Giant remain popular in their respective agro-climatic zones. These are particularly valued for their distinct taste and suitability for traditional cooking.

Hybrid varieties 🔗

Hybrid varieties developed by ICAR-IARI offer significantly higher yields and better disease tolerance. Notable hybrids include Pusa Hybrid-5, which bears long dark purple fruits and is ready for harvest in 80-85 days with yields up to 204 quintals per acre. BH-2, released in 1994, gives an average yield of 235 quintals per acre with fruits weighing about 300 grams each. Punjab Barsati is specifically recommended for rainy season cultivation due to its tolerance to fruit borer. Several private sector hybrids such as Supriya, Kalpatharu, and Nisha are also commercially popular among farmers across states.

Nursery preparation and transplanting 🔗

Brinjal is propagated through seedlings raised in nursery beds and then transplanted to the main field. Raised nursery beds of 15 cm height are prepared, with bed width not exceeding one metre. The beds are mixed with FYM at 4 kg/m² and levelled. To prevent damping-off disease, the nursery soil is drenched with Dithane M-45 at 3 g/m² or Bavistin at 2 g/m² before sowing.

Seeds are sown in rows 5 cm apart, covered lightly with sieved FYM, and watered twice daily until germination. Seed treatment with Captan or Thiram at 2 g/kg of seed is recommended to reduce fungal infections. Approximately 250-375 g of seeds is sufficient to raise seedlings for one hectare. Seedlings become ready for transplanting within 4-5 weeks, when they are 8-12 cm tall with 3-4 leaves.

Before transplanting, seedlings are hardened by gradually reducing irrigation over 7-10 days. Transplanting should be done in the evening hours, followed by light irrigation. Care must be taken to avoid root damage during uprooting.

Spacing and plant population 🔗

Spacing in brinjal cultivation depends on variety type, soil fertility, and season. For long-duration spreading varieties, a spacing of 75-90 cm × 60-75 cm is recommended, while bushy and non-spreading varieties can be accommodated at 45-60 cm on either side. A general spacing of 75 × 75 cm is commonly used and supports a plant population of approximately 17,000-18,000 plants per hectare.

During the rainy season, wider spacing is preferred to ensure good air circulation and reduce the incidence of foliar diseases. For summer crops, slightly closer spacing is manageable due to reduced vegetative spread. Paired row planting is sometimes used for early and less-spreading varieties to make harvesting and cultural operations easier.

Fertilizer and nutrient management 🔗

Brinjal is a long-duration, high-yield crop with substantial nutrient requirements. At the time of field preparation, 25 tonnes per hectare of well-decomposed cow dung manure should be applied. For chemical fertilizers, the general recommendation across most Indian states includes nitrogen (N), phosphorus (P), and potassium (K) – though exact doses vary by region and soil type.

A standard approach followed in many states is to apply 1/3 of nitrogen along with the full doses of phosphorus and potassium as a basal dose at the time of final tillage. The remaining nitrogen is split into two top-dressings: the first at 25-35 days after transplanting and the second at 45-60 days after transplanting. Under Bangalore conditions, studies found 150 kg N and 100 kg P₂O₅ per hectare to be optimum, while other centres recommend around 100 kg N and 60 kg P₂O₅/ha. Potassium at 30-60 kg K₂O/ha is included in fertilizer packages in most states.

For micronutrients, zinc improves fruit size and overall production, while copper supports better flower development. Biofertilizers such as Azospirillum and Phosphobacteria, mixed with FYM before application, can further improve nutrient availability and soil health in an eco-friendly way.

Irrigation management 🔗

Adequate and timely irrigation is critical for brinjal, particularly during flowering and fruit development. During summer, irrigation is required every 3-4 days, while in winter, the interval can be extended to 10-14 days. In the rainy season, irrigation frequency depends on rainfall distribution, but waterlogging must always be avoided.

Drip irrigation is the most efficient method for brinjal cultivation. Drip systems not only conserve water but also enable fertigation – delivering fertilizers directly to the root zone at the right time – which can significantly increase yield. Mulching with black polyethylene sheets (25 micron) helps retain soil moisture, suppress weeds, and maintain soil temperature, especially useful in the summer crop.

Weed management 🔗

Weeds in brinjal fields compete aggressively for nutrients, water, and sunlight. Uncontrolled weed growth can reduce brinjal yield by as much as 25-30%. The first weeding should be done 20-25 days after transplanting, with 2-3 more rounds at 40-45 day and 60-65 day intervals. Shallow cultivation at regular intervals keeps the field weed-free and promotes soil aeration for better root development. Pre-emergence application of Pendimethalin at 1 litre per hectare, immediately after transplanting, is an effective chemical weed control option.

Pest and disease management 🔗

Brinjal is prone to several significant pest and disease threats that can severely impact both yield and fruit quality if not managed proactively.

Shoot and fruit borer 🔗

The shoot and fruit borer (Leucinodes orbonalis) is considered the most damaging pest of brinjal. The small larvae first bore into terminal shoots, causing wilting and drooping (the characteristic “dead heart” symptom), then move into young fruits, making them commercially unfit. Affected shoots and fruits should be removed and destroyed immediately. For chemical control, sprays of Triazophos or Spinosad are recommended at 10-15 day intervals beginning one month after transplanting. The Punjab Barsati variety offers moderate tolerance to this pest.

Mites, jassids, and aphids 🔗

Spider mites and jassids suck cell sap from the undersides of leaves, causing mottling, yellowing, and leaf drop. Jassids also transmit the little leaf virus, a serious disease that causes severe stunting, absence of flowering, and complete loss of fruit production. Chemical management includes sprays of Diafenthiuron, Propargite, or Spiromesifen for mites, and Imidacloprid or Thiamethoxam for jassids and aphids.

Bacterial wilt and fungal diseases 🔗

Bacterial wilt, caused by Ralstonia solanacearum, is one of the most serious soil-borne diseases of brinjal, with incidence ranging from 30 to 100% in susceptible varieties in some regions. Infected plants show sudden wilting and brownish-red discoloration in the vascular tissue. Since no single chemical is fully effective, an integrated approach – including crop rotation (particularly after French bean), soil solarization, and use of resistant varieties – is the most reliable strategy. Fungal diseases like Phomopsis blight and Fusarium wilt are controlled through seed treatment with Thiram or Carbendazim, along with foliar sprays of Mancozeb or Copper Oxychloride.

Harvesting and yield 🔗

Brinjal is harvested at the immature fruit stage, when fruits have reached full size but have not yet begun to ripen. The right harvesting stage is indicated by shiny skin, firm texture, and a bright, uniform colour. A dull appearance on the fruit surface signals over-maturity and loss of quality. The first harvest typically begins 60-70 days after transplanting, with subsequent pickings every 5-7 days depending on variety and season.

Under well-managed conditions, brinjal yield ranges from 250 to 500 quintals per hectare, varying with variety, season, soil fertility, and crop management. Hybrid varieties consistently outperform open-pollinated types, with some hybrids yielding over 500 quintals per hectare under optimal conditions. Fruits are hand-picked with a short stalk attached and handled carefully to avoid bruising, which reduces shelf life and market value.

What do you think? With the growing demand for high-yielding brinjal varieties resistant to fruit borers and bacterial wilt, do you think Indian farmers should prioritize hybrid cultivation over traditional open-pollinated varieties – or is there still a strong case for preserving regional local cultivars? And given the critical role irrigation plays in summer brinjal production, how practical do you think drip irrigation adoption is for small and marginal farmers in your region?

References

1. https://www.horticultureguruji.in/cultivation-of-brinjal-2/
2. https://www.apnikheti.com/en/pn/agriculture/horticulture/vegetable-crops/brinjal
3. https://www.agrigoaexpert.res.in/icar/category/horitculture/vegetable_science/brinjal.php
4. https://www.gyan.bharatagri.com/brinjal-farming-in-india/
5. https://ztmbpd.iari.res.in/technologies/varietieshybrids/vegetables/brinjal/
6. https://www.kiran.nic.in/pdf/Agri-Kaleidoscope/Horticulture-resources/BRINJAL.pdf
7. https://krishijagran.com/agripedia/step-by-step-guide-for-brinjal-farming-in-india/
8. http://eagri.org/eagri50/HORT281/pdf/lec05.pdf
9. https://justagriculture.in/files/newsletter/2021/august/52.%20Precision%20Farming%20of%20Brinjal.pdf
10. https://subsistencefarming.in/en/brinjal-eggplant-farming/
11. https://ccari.icar.gov.in/dss/brinjal.html