Planning polyhouse farming in Dharmanagar? Dharmanagar is a town in North Tripura District, Tripura, home to about 41,000 people (GeoNames)[1][2], about 440 km from Kolkata. This guide works from Dharmanagar'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 Dharmanagar
April is the hottest month in Dharmanagar, with average daily highs of about 34°C. January has the coolest nights, averaging 10°C.[3] The area gets about 3,025 mm of rain a year, most of it in April to October, peaking in June at about 574 mm. Average humidity stays at 75% or more in May to December, which raises the risk of leaf disease and slows evaporative cooling. Dharmanagar sits about 21 m above sea level.[2] On the Köppen–Geiger climate map, Dharmanagar falls in the humid subtropical with dry winters zone (Cwa).[4]
Dharmanagar climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
24.0
10.4
70
11
Feb
28.0
13.2
60
29
Mar
32.8
17.9
55
81
Apr
33.5
22.2
69
304
May
32.4
24.3
80
475
Jun
31.5
25.4
87
574
Jul
31.5
25.5
88
523
Aug
31.5
25.4
88
432
Sep
30.7
24.8
88
343
Oct
29.8
22.2
84
203
Nov
27.2
16.9
81
28
Dec
24.3
12.4
78
22
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Dharmanagar. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[3]
Advantages of protected cultivation in Dharmanagar
1
Year-round crops
Under cover, chilli pepper can be grown for 10 months a year in Dharmanagar, 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 June's 574 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 (May to December), so you spray less often.
5
Subsidy eligible
Polyhouse, shade net and nethouse projects in Tripura can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[5]
Which polyhouse suits Dharmanagar?
For polyhouse farming in Dharmanagar, the structure decides which months you can crop and what it costs to run. With average highs between 24°C and 34°C through the year, Dharmanagar 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 June (about 574 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 November to March, when it is mild and fairly dry.
Crops for Dharmanagar
Based on Dharmanagar's climate, the crops with the longest growing windows are chilli pepper (10 months), cucumber (9 months) and brinjal (8 months). Chilli pepper fits February to March and May to December in a naturally ventilated polyhouse. Lilium and broccoli 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 Dharmanagar.
Months each crop suits in Dharmanagar
Crop
Naturally ventilated polyhouse
With Fan & Pad cooling
Capsicum
Feb and Sep–Dec
Feb–Dec
Tomato
Sep–Feb
All year
Cucumber
Mar–Nov
Mar–Nov
Chilli pepper
Feb–Mar and May–Dec
Feb–Dec
Brinjal
Mar and May–Nov
Mar–Nov
Lettuce
Nov–Feb
Oct–Mar
Broccoli
Jan
Nov–Feb
Strawberry
Dec–Jan
Dec–Feb
Rose
Nov–Feb
Nov–Mar
Gerbera
Nov–Feb
Oct–Mar
Carnation
Dec–Jan
Nov–Feb
Chrysanthemum
Nov–Feb
Nov–Mar
Anthurium
Oct–Nov
Mar–Nov
Orchids
Oct–Nov
Mar–Nov
Lilium
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.
₹8,118Spending per person per month, urban Tripura, 2023–24[6]
440 kmto Kolkata, the nearest metro (straight line)
Urban households in Tripura spent an average of ₹8,118 per person per month in 2023–24, above the all-India urban average of ₹7,078.[6] Local demand in Dharmanagar may be small for exotic greens, so plan where the rest of the harvest goes.
Polyhouse farming in Dharmanagar with Kryzen
We have built one project in Tripura so far (see our project map (opens in a new tab)). Dharmanagar is about 1,800 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.
Towns near Dharmanagar
We also plan and build farms in these towns near Dharmanagar:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Dharmanagar: FAQs
Can a polyhouse farm run all year in Dharmanagar?
Yes, with the right structure. For Dharmanagar we would plan a naturally ventilated polyhouse. Even then, lettuce is hard to grow in April to September, so plan another crop for those months.
Which polyhouse is best for Dharmanagar?
With April highs of about 34°C and 69% average humidity in that month, we would start with a naturally ventilated polyhouse.
Which crops should I grow in a polyhouse in Dharmanagar?
Going by the monthly climate, tomato, capsicum and chilli pepper have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Dharmanagar?
It can be, if the crop, the structure and the buyers match. In Dharmanagar, chilli pepper and cucumber 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 Dharmanagar?
Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 1,800 km away, and we have built one project in Tripura.
Is there a subsidy for polyhouse or hydroponic farms in Tripura?
Yes. Protected cultivation projects in Tripura 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 Dharmanagar 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.
