Planning polyhouse farming in Karnal? Karnal is a large city in Haryana, home to about 3 lakh people (GeoNames)[1][2], about 120 km from Delhi. 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 Karnal
May is the hottest month in Karnal, with average daily highs of about 42°C. January has the coolest nights, averaging 6°C.[3] The area gets about 757 mm of rain a year, most of it in July to September, peaking in July at about 206 mm. On the Köppen–Geiger climate map, Karnal falls in the hot semi-arid zone (BSh).[4]
Karnal climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
20.5
5.5
45
21
Feb
24.6
8.7
43
26
Mar
31.4
14.4
36
24
Apr
38.1
21.1
27
18
May
42.3
26.7
24
34
Jun
41.8
29.2
37
93
Jul
37.1
27.8
61
206
Aug
34.2
25.9
73
195
Sep
33.4
22.9
68
118
Oct
31.8
17.7
50
10
Nov
26.9
12.1
43
4
Dec
22.1
7.3
43
8
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Karnal. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[3]
Advantages of protected cultivation in Karnal
1
Year-round crops
A polyhouse stretches the season: in Karnal cucumber can be grown for about 8 months a year under cover, longer than in the open field.
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 206 mm of rain off the crop and the soil.
4
Less pesticides
Insect net on vents and doors keeps out most pests, so you spray less often.
5
Subsidy eligible
Polyhouse, shade net and nethouse projects in Haryana can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[5]
Which polyhouse suits Karnal?
For polyhouse farming in Karnal, the structure decides which months you can crop and what it costs to run. The heat in Karnal comes with dry air. In April to June, average highs reach 42°C while average humidity is only about 29%. In that dry air, wet pads can bring a 42°C May afternoon down to roughly 30°C inside a Fan & Pad polyhouse, which keeps herbs and vine crops going; lettuce will still struggle in the hottest weeks. For vine crops such as capsicum and cucumber, a naturally ventilated polyhouse with a shade screen works from November and costs less to run.
Plan for heavy rain in July (about 206 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. Sunlight peaks in May at about 6.8 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 March and October to November, when it is mild and fairly dry.
Crops for Karnal
Based on Karnal's climate, the crops with the longest growing windows are cucumber (8 months), chilli pepper (7 months) and lettuce (7 months). Cucumber fits March to October with Fan & Pad cooling. These are the crops we would plan first for polyhouse farming in Karnal.
Months each crop suits in Karnal
Crop
Naturally ventilated polyhouse
With Fan & Pad cooling
Capsicum
Nov
Mar–Apr and Aug–Nov
Tomato
Nov
Mar–Apr and Sep–Nov
Cucumber
Mar and Sep–Oct
Mar–Oct
Chilli pepper
Mar and Oct–Nov
Mar–May and Aug–Nov
Brinjal
Mar and Oct
Mar–May and Aug–Oct
Lettuce
Nov–Feb
Oct–Apr
Broccoli
Dec–Jan
Nov–Mar
Strawberry
Dec–Feb
Nov–Mar
Rose
Nov
Mar–Apr and Oct–Nov
Gerbera
Nov
Mar–Apr and Oct–Nov
Carnation
Feb
Feb–Mar and Nov
Chrysanthemum
Nov
Mar–Apr and Oct–Nov
Anthurium
Difficult
Apr–May and Aug–Oct
Orchids
Difficult
Apr–May and Aug–Oct
Lilium
Difficult
Feb–Mar and Nov
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.
₹8,462Spending per person per month, urban Haryana, 2023–24[6]
120 kmto Delhi, the nearest metro (straight line)
Urban households in Haryana spent an average of ₹8,462 per person per month in 2023–24, above the all-India urban average of ₹7,078.[6] Karnal 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. For premium vegetable and flower buyers, Delhi is within a day's delivery, about 120 km away.
Polyhouse farming in Karnal with Kryzen
Karnal is about 1,100 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.
Towns near Karnal
We also plan and build farms in these towns near Karnal:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Karnal: FAQs
Can a polyhouse farm run all year in Karnal?
Yes, with the right structure. For Karnal we would plan a Fan & Pad polyhouse for leafy greens. Even then, lettuce is hard to grow in May to September, so plan another crop for those months.
Which polyhouse is best for Karnal?
With May highs of about 42°C and 24% average humidity in that month, we would start with a Fan & Pad polyhouse for leafy greens.
Which crops should I grow in a polyhouse in Karnal?
Going by the monthly climate, cucumber, chilli pepper and lettuce have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Karnal?
It can be, if the crop, the structure and the buyers match. In Karnal, 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 Karnal?
Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 1,100 km away.
Is there a subsidy for polyhouse or hydroponic farms in Haryana?
Yes. Protected cultivation projects in Haryana 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 Karnal 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.
