Planning polyhouse farming in Mainaguri? Mainaguri is a small town in Jalpaiguri district, West Bengal, home to about 30,000 people (Census 2011)[1], about 450 km from Kolkata. We have used the monthly climate for Mainaguri to plan a structure, a growing system and a crop calendar, so you can compare them with your own plot and buyers.
Climate for polyhouse farming in Mainaguri
April is the hottest month in Mainaguri, with average daily highs of about 36°C. January has the coolest nights, averaging 11°C.[2] The area gets about 2,049 mm of rain a year, most of it in May to October, peaking in July at about 519 mm. Average humidity stays at 75% or more in June to October, which raises the risk of leaf disease and slows evaporative cooling. Mainaguri sits about 84 m above sea level.[1] On the Köppen–Geiger climate map, Mainaguri falls in the humid subtropical with dry winters zone (Cwa).[3]
Mainaguri climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
22.8
10.5
54
6
Feb
27.1
13.4
45
12
Mar
32.6
17.9
36
33
Apr
35.6
22.2
43
91
May
35.0
24.6
60
201
Jun
33.2
25.8
77
334
Jul
31.0
25.7
88
519
Aug
30.8
25.5
88
394
Sep
29.9
24.4
87
337
Oct
28.6
21.3
80
114
Nov
26.0
16.8
72
6
Dec
23.3
12.5
64
2
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Mainaguri. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[2]
Advantages of protected cultivation in Mainaguri
1
Year-round crops
Under cover, capsicum can be grown for 11 months a year in Mainaguri, so you can supply buyers every week instead of one open-field season.
2
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.
3
Less water
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps July's 519 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 (June to October), so you spray less often.
5
Subsidy eligible
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 Mainaguri?
For polyhouse farming in Mainaguri, the structure decides which months you can crop and what it costs to run. Average highs stay at 33°C or more in April to June, with moderate humidity of about 60%. In that dry air, wet pads can bring a 36°C April afternoon down to roughly 28°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 519 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. A nethouse, the lowest-cost option, can grow hardy crops in February to March and November, when it is mild and fairly dry.
Crops for Mainaguri
Based on Mainaguri's climate, the crops with the longest growing windows are capsicum (11 months), chilli pepper (11 months) and tomato (10 months). Capsicum fits February to December with Fan & Pad cooling. These are the crops we would plan first for polyhouse farming in Mainaguri.
Months each crop suits in Mainaguri
Crop
Naturally ventilated polyhouse
With Fan & Pad cooling
Capsicum
Feb and Jul–Dec
Feb–Dec
Tomato
Aug–Feb
Aug–May
Cucumber
Mar and Jun–Nov
Mar–Nov
Chilli pepper
Feb–Mar and Jul–Dec
Feb–Dec
Brinjal
Mar and Jul–Nov
Mar–Nov
Lettuce
Nov–Feb
Sep–Apr
Broccoli
Dec–Jan
Nov–Feb
Strawberry
Dec–Jan
Dec–Feb
Rose
Nov–Feb
Oct–Mar
Gerbera
Nov–Feb
Oct–Apr
Carnation
Dec–Jan
Nov–Feb
Chrysanthemum
Nov–Feb
Oct–Mar
Anthurium
Sep–Nov
Mar–Nov
Orchids
Sep–Nov
Mar–Nov
Lilium
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]
450 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] Local demand in Mainaguri may be small for exotic greens, so plan where the rest of the harvest goes. Siliguri, about 40 km away, is the nearest larger market on our list.
Polyhouse farming in Mainaguri with Kryzen
We have built 2 projects in West Bengal so far (see our project map (opens in a new tab)). Mainaguri is about 1,560 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.
Towns near Mainaguri
We also plan and build farms in these towns near Mainaguri:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Mainaguri: FAQs
Can a polyhouse farm run all year in Mainaguri?
Yes, with the right structure. For Mainaguri 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 August, so plan another crop for those months.
Which polyhouse is best for Mainaguri?
With April highs of about 36°C and 43% 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 Mainaguri?
Going by the monthly climate, capsicum, chilli pepper and tomato have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Mainaguri?
It can be, if the crop, the structure and the buyers match. In Mainaguri, capsicum 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 Mainaguri?
Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 1,560 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 Mainaguri 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.
