Planning polyhouse farming in Raiganj? Raiganj is a mid-sized city in Uttar Dinajpur district, West Bengal, home to about 1.8 lakh people (Census 2011)[1], about 340 km from Kolkata. Below we use the town's monthly temperatures, humidity and rainfall to work out which structure fits, which crops to grow and in which months, before you spend on construction.
Climate for polyhouse farming in Raiganj
April is the hottest month in Raiganj, with average daily highs of about 38°C. January has the coolest nights, averaging 9°C.[2] The area gets about 1,476 mm of rain a year, most of it in May to October, peaking in July at about 339 mm. Average humidity stays at 75% or more in July to November, which raises the risk of leaf disease and slows evaporative cooling. Raiganj sits about 40 m above sea level.[1] On the Köppen–Geiger climate map, Raiganj falls in the humid subtropical with dry winters zone (Cwa).[3]
Raiganj climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
22.8
8.7
60
6
Feb
28.0
12.5
48
10
Mar
34.2
17.8
37
21
Apr
37.9
23.0
42
70
May
37.5
25.8
57
152
Jun
35.0
26.8
73
236
Jul
32.0
26.2
85
339
Aug
31.6
25.9
87
268
Sep
30.6
24.8
88
253
Oct
29.3
21.1
83
114
Nov
26.4
15.3
77
5
Dec
23.0
10.5
71
2
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Raiganj. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[2]
Advantages of protected cultivation in Raiganj
1
ఏడాది పొడవునా పంటలు
Under cover, chilli pepper can be grown for 10 months a year in Raiganj, so you can supply buyers every week instead of one open-field season.
2
మెరుగైన దిగుబడి మరియు ధర
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.
3
తక్కువ నీరు
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps July's 339 mm of rain off the crop and the soil.
4
Less pesticides
Insect net on vents and doors keeps out most pests, and controlled ventilation helps with leaf disease in the humid months (July to November), so you spray less often.
5
సబ్సిడీకి అర్హం
Polyhouse, shade net and nethouse projects in West Bengal can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[4]
Which polyhouse suits Raiganj?
For polyhouse farming in Raiganj, the structure decides which months you can crop and what it costs to run. Average highs stay at 33°C or more in March to June, with moderate humidity of about 52%. In that dry air, wet pads can bring a 38°C April afternoon down to roughly 30°C inside a Fan & Pad polyhouse, cool enough for lettuce and other leafy greens. Capsicum, cucumber and tomato do well in a naturally ventilated polyhouse with a shade screen. If you want one structure, decide by crop: greens all year point to Fan & Pad; vine crops point to a naturally ventilated house.
Plan for heavy rain in July (about 339 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank.
Crops for Raiganj
Based on Raiganj's climate, the crops with the longest growing windows are chilli pepper (10 months), capsicum (9 months) and cucumber (9 months). Chilli pepper fits February to November with Fan & Pad cooling. These are the crops we would plan first for polyhouse farming in Raiganj.
Months each crop suits in Raiganj
పంట
సహజ వెంటిలేషన్ పాలీహౌస్
With Fan & Pad cooling
క్యాప్సికమ్
Feb and Sep–Nov
Feb–May and Jul–Nov
టమాటా
Feb and Sep–Dec
Feb–Apr and Sep–Dec
దోసకాయ
Jul–Nov
Mar–Nov
Chilli pepper
Feb and Jul–Nov
Feb–Nov
వంకాయ
Jul–Nov
Mar–Nov
లెట్యూస్
Nov–Feb
Oct–Apr
బ్రోకలీ
Dec–Jan
Nov–Feb
స్ట్రాబెర్రీ
Dec–Jan
Nov–Feb
గులాబీ
Feb and Nov–Dec
Feb–Mar and Oct–Dec
గెర్బెరా
Feb and Nov–Dec
Feb–Apr and Oct–Dec
కార్నేషన్
Dec–Jan
Nov–Feb
చామంతి
Feb and Nov–Dec
Feb–Mar and Oct–Dec
ఆంథూరియం
Oct
Mar–Apr and Jul–Oct
ఆర్కిడ్లు
Oct
Mar–Apr and Jul–Oct
లిలియం
Dec–Jan
Nov–Feb
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.
₹5,903Spending per person per month, urban West Bengal, 2023–24[5]
340 kmto Kolkata, the nearest metro (straight line)
Urban households in West Bengal spent an average of ₹5,903 per person per month in 2023–24, below the all-India urban average of ₹7,078.[5] Raiganj is large enough for steady local sales to restaurants, hotels and fruit-and-vegetable retailers. Start with a farm size that matches the orders you can confirm.
Polyhouse farming in Raiganj with Kryzen
We have built 2 projects in West Bengal so far (see our project map (కొత్త ట్యాబ్లో తెరుచుకుంటుంది)). Raiganj is about 1,460 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.
Towns near Raiganj
We also plan and build farms in these towns near Raiganj:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Raiganj: FAQs
Can a polyhouse farm run all year in Raiganj?
Yes, with the right structure. For Raiganj we would plan Fan & Pad cooling for leafy greens and a naturally ventilated polyhouse for vine crops. Even then, lettuce is hard to grow in May to September, so plan another crop for those months.
Which polyhouse is best for Raiganj?
With April highs of about 38°C and 42% average humidity in that month, we would start with Fan & Pad cooling for leafy greens and a naturally ventilated polyhouse for vine crops.
Which crops should I grow in a polyhouse in Raiganj?
Going by the monthly climate, chilli pepper, capsicum and cucumber have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Raiganj?
It can be, if the crop, the structure and the buyers match. In Raiganj, chilli pepper and capsicum 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 Raiganj?
Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 1,460 km away, and we have built 2 projects in West Bengal.
Is there a subsidy for polyhouse or hydroponic farms in West Bengal?
Yes. Protected cultivation projects in West Bengal 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 Raiganj 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.
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.
