Planning polyhouse farming in Rajam? Rajam is a town in Srikakulam district, Andhra Pradesh, home to about 42,000 people (Census 2011)[1], about 560 km from Hyderabad. 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 Rajam
April is the hottest month in Rajam, with average daily highs of about 38°C. January has the coolest nights, averaging 16°C.[2] The area gets about 1,278 mm of rain a year, most of it in June to October, peaking in September at about 231 mm. Average humidity stays at 75% or more in July to November, which raises the risk of leaf disease and slows evaporative cooling. Rajam sits about 67 m above sea level.[1] On the Köppen–Geiger climate map, Rajam falls in the tropical savanna (dry winter) zone (Aw).[3]
Rajam climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
28.0
15.9
67
5
Feb
31.8
18.5
62
14
Mar
35.6
22.1
58
17
Apr
37.9
25.0
57
34
May
37.5
26.7
61
74
Jun
33.4
26.4
73
162
Jul
30.9
25.2
82
225
Aug
30.2
24.8
85
224
Sep
29.9
24.6
86
231
Oct
29.3
22.8
83
207
Nov
27.7
19.0
78
67
Dec
26.6
16.1
72
18
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Rajam. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[2]
Advantages of protected cultivation in Rajam
1
આખું વર્ષ પાક
Under cover, cucumber can be grown for the whole year in Rajam, so you can supply buyers every week instead of one open-field season.
2
વધુ સારું ઉત્પાદન અને ભાવ
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
ઓછું પાણી
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps September's 231 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
સબસિડી પાત્ર
Polyhouse, shade net and nethouse projects in Andhra Pradesh can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[4]
Which polyhouse suits Rajam?
For polyhouse farming in Rajam, 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 62%. In that dry air, wet pads can bring a 38°C April afternoon down to roughly 33°C inside a Fan & Pad polyhouse, which keeps herbs and vine crops going; lettuce will still struggle in the hottest weeks. 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 September (about 231 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 February, when it is mild and fairly dry.
Crops for Rajam
Based on Rajam's climate, the crops with the longest growing windows are cucumber (all year), chilli pepper (all year) and brinjal (all year). Cucumber fits all year with Fan & Pad cooling. Strawberry and lilium 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 Rajam.
Months each crop suits in Rajam
પાક
નેચરલી વેન્ટિલેટેડ પોલીહાઉસ
With Fan & Pad cooling
કેપ્સિકમ
Jul–Jan
Jun–Apr
ટામેટાં
Jul–Jan
Jul–Apr
કાકડી
Jun–Feb
All year
Chilli pepper
Jul–Feb
All year
રીંગણ
Jul–Feb
All year
લેટ્યુસ
Nov–Jan
Oct–Feb
બ્રોકોલી
Difficult
Dec–Jan
સ્ટ્રોબેરી
Difficult
Difficult
ગુલાબ
Nov–Jan
Nov–Feb
જર્બેરા
Nov–Jan
Oct–Feb
કાર્નેશન
Difficult
Dec–Jan
સેવંતી
Nov–Jan
Nov–Feb
એન્થુરિયમ
Sep–Jan
Jun–Mar
ઓર્કિડ
Sep–Jan
Jun–Mar
લિલિયમ
Difficult
Dec–Jan
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.
₹7,341Spending per person per month, urban Andhra Pradesh, 2023–24[5]
560 kmto Hyderabad, the nearest metro (straight line)
The Census counted 23,000 people in Rajam in 2001 and 42,000 in 2011, a rise of 80%. In 1991 it was 14,000.[1] Urban households in Andhra Pradesh spent an average of ₹7,341 per person per month in 2023–24, above the all-India urban average of ₹7,078.[5] Local demand in Rajam may be small for exotic greens, so plan where the rest of the harvest goes. Vizianagaram, about 50 km away, is the nearest larger market on our list.
Polyhouse farming in Rajam with Kryzen
We have built 30 projects in Andhra Pradesh so far (see our project map (નવા ટેબમાં ખૂલે છે)). Rajam is about 890 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.
Towns near Rajam
We also plan and build farms in these towns near Rajam:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Rajam: FAQs
Can a polyhouse farm run all year in Rajam?
Yes, with the right structure. For Rajam 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 March to September, so plan another crop for those months.
Which polyhouse is best for Rajam?
With April highs of about 38°C and 57% 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 Rajam?
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 Rajam?
It can be, if the crop, the structure and the buyers match. In Rajam, 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 Rajam?
Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 890 km away, and we have built 30 projects in Andhra Pradesh.
Is there a subsidy for polyhouse or hydroponic farms in Andhra Pradesh?
Yes. Protected cultivation projects in Andhra Pradesh 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 Rajam 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.
