Polyhouse farming · Puducherry

Polyhouse Farming in Yanam

Monthly climate, crop windows and nearby markets for a polyhouse farm in Yanam, with a naturally ventilated polyhouse for a mild climate.

Sudhir Devkar, founder of Kryzen Biotech

By Sudhir Devkar, Founder & CEO, Kryzen Biotech

Updated · 5 min read

Polyhouse farming in Yanam: aerial view of a large protected cultivation farm with polyhouses

Planning polyhouse farming in Yanam? Yanam is a town in Puducherry[1], about 400 km from Hyderabad. This guide works from Yanam's own monthly climate to suggest the protected structure, the crops to start with, and the months each crop is likely to do well.

Climate for polyhouse farming in Yanam

May is the hottest month in Yanam, with average daily highs of about 31°C. January has the coolest nights, averaging 24°C.[2] The area gets about 1,230 mm of rain a year, most of it in June to October, peaking in October at about 208 mm. Average humidity stays at 75% or more in March to November, which raises the risk of leaf disease and slows evaporative cooling. On the Köppen–Geiger climate map, Yanam falls in the tropical savanna (dry winter) zone (Aw).[3]

Yanam climate by month

MonthAvg high (°C)Avg low (°C)Humidity (%)Rain (mm)
Jan25.524.3734
Feb26.625.1736
Mar28.426.87612
Apr29.828.37928
May30.929.48172
Jun30.628.981174
Jul29.527.983203
Aug29.127.785203
Sep29.227.983207
Oct29.028.078208
Nov27.626.67586
Dec26.125.07227
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Yanam. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[2]

Advantages of protected cultivation in Yanam

  • Year-round crops

    Under cover, cucumber can be grown for the whole year in Yanam, so you can supply buyers every week instead of one open-field season.

  • Better yield and price

    Plants grow without rain, hail and wind damage, so yields are higher and more even, and clean, graded produce sells at a better price, especially off-season.

  • Less water

    Drip irrigation under cover uses less water than flood irrigation, and the roof keeps October's 208 mm of rain off the crop and the soil.

  • Less pesticides

    Insect net on vents and doors keeps out most pests, and controlled ventilation helps with leaf disease in the humid months (March to November), so you spray less often.

  • Subsidy eligible

    Polyhouse, shade net and nethouse projects in Puducherry can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[4]

Which polyhouse suits Yanam?

For polyhouse farming in Yanam, the structure decides which months you can crop and what it costs to run. With average highs between 26°C and 31°C through the year, Yanam suits a naturally ventilated polyhouse for most crops. Fan & Pad cooling is rarely needed; spend the budget on good ventilation, insect net and a shade screen. Plan for heavy rain in October (about 208 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank.

Protected structures to compare

Sunlight peaks in April at about 6.4 kWh per m² a day, so add a shade screen for leafy greens in the brightest months. A nethouse, the lowest-cost option, can grow hardy crops in November to May, when it is mild and fairly dry.

Crops for Yanam

Based on Yanam's climate, the crops with the longest growing windows are cucumber (all year), chilli pepper (5 months) and brinjal (5 months). Cucumber fits all year in a naturally ventilated polyhouse. Lilium and chrysanthemum are hard to time here, so we would leave them out of the first season. These are the crops we would plan first for polyhouse farming in Yanam.

Months each crop suits in Yanam

CropNaturally ventilated polyhouse
CapsicumDec–Feb
TomatoDec–Feb
CucumberAll year
Chilli pepperNov–Mar
BrinjalNov–Mar
LettuceJan
BroccoliDifficult
StrawberryDifficult
RoseDifficult
GerberaDifficult
CarnationDifficult
ChrysanthemumDifficult
AnthuriumNov–Mar
OrchidsNov–Mar
LiliumDifficult
Kryzen planning estimate from the monthly averages above and each crop's usual day and night temperature range. Variety, soil or substrate temperature and shading change the result, so confirm with a trial.

Suggested crops for Yanam

Selling your harvest in and around Yanam

₹8,639Spending per person per month, urban Puducherry, 2023–24[5]
400 kmto Hyderabad, the nearest metro (straight line)

Urban households in Puducherry spent an average of ₹8,639 per person per month in 2023–24, above the all-India urban average of ₹7,078.[5] Local demand in Yanam may be small for exotic greens, so plan where the rest of the harvest goes. Kakinada, about 30 km away, is the nearest larger market on our list.

Polyhouse farming in Yanam with Kryzen

Yanam is about 800 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.

Towns near Yanam

We also plan and build farms in these towns near Yanam:

Map of Puducherry

Check other locations in Puducherry

We have farm planning pages for 5 towns in Puducherry, each with its own climate, crops and market notes.

All Puducherry locations

Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.

Polyhouse farming in Yanam: FAQs

Can a polyhouse farm run all year in Yanam?

Yes, with the right structure. For Yanam we would plan a naturally ventilated polyhouse. Even then, lettuce is hard to grow in February to December, so plan another crop for those months.

Which polyhouse is best for Yanam?

With May highs of about 31°C and 81% average humidity in that month, we would start with a naturally ventilated polyhouse.

Which crops should I grow in a polyhouse in Yanam?

Going by the monthly climate, cucumber, chilli pepper and brinjal have the longest growing windows. Confirm prices and volumes with buyers before you plant.

Is polyhouse farming profitable in Yanam?

It can be, if the crop, the structure and the buyers match. In Yanam, cucumber and chilli pepper have the longest seasons under cover. Confirm prices and volumes with buyers first; our Detailed Project Report works out the cost, yield and returns for your plot.

Does Kryzen build polyhouses in Yanam?

Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 800 km away.

Is there a subsidy for polyhouse or hydroponic farms in Puducherry?

Yes. Protected cultivation projects in Puducherry can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department. Check the current rate and area limit when you apply.

Discuss your Yanam farm project

Share your plot location, water test and crop targets. We will suggest the right structure and growing system, and send an itemised quotation.

Sudhir Devkar

Sudhir Devkar

Founder & CEO, Kryzen Biotech

A computer engineer turned hydroponic farmer from a multigenerational farming family in Satara. Sudhir founded Kryzen in 2019, and the team has since built 350+ protected and hydroponic farms across India.

Sources

  1. Wikipedia · Yanam (opens in a new tab)
  2. NASA Langley Research Center · POWER Climatology API: long-term monthly averages (opens in a new tab)
  3. Rubel & Kottek, University of Veterinary Medicine Vienna · World map of the Köppen–Geiger climate classification (opens in a new tab)
  4. Ministry of Agriculture and Farmers Welfare · Mission for Integrated Development of Horticulture (MIDH) (opens in a new tab)
  5. Ministry of Statistics and Programme Implementation (MoSPI) · Household Consumption Expenditure Survey 2023–24: press note (opens in a new tab)