Polyhouse farming · Andhra Pradesh

Polyhouse Farming in Salur

Monthly climate, crop windows and nearby markets for a polyhouse farm in Salur, with Fan & Pad cooling for dry summer heat.

Sudhir Devkar, founder of Kryzen Biotech

By Sudhir Devkar, Founder & CEO, Kryzen Biotech

Updated · 5 min read

Polyhouse farming in Salur: aerial view of a large protected cultivation farm with polyhouses

Planning polyhouse farming in Salur? Salur is a town in Vizianagaram district, Andhra Pradesh, home to about 50,000 people (Census 2011)[1], about 520 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 Salur

April is the hottest month in Salur, with average daily highs of about 40°C. January has the coolest nights, averaging 15°C.[2] The area gets about 1,417 mm of rain a year, most of it in June to October, peaking in August at about 283 mm. Average humidity stays at 75% or more in July to November, which raises the risk of leaf disease and slows evaporative cooling. Salur sits about 117 m above sea level.[1] On the Köppen–Geiger climate map, Salur falls in the tropical savanna (dry winter) zone (Aw).[3]

Salur climate by month

MonthAvg high (°C)Avg low (°C)Humidity (%)Rain (mm)
Jan29.014.5647
Feb33.317.25512
Mar37.821.34818
Apr40.324.64741
May39.726.25373
Jun33.925.373193
Jul30.924.085276
Aug30.323.788283
Sep30.123.489253
Oct29.421.385189
Nov27.817.38156
Dec27.014.57316
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Salur, adjusted for the town's elevation[4]. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[2]

Advantages of protected cultivation in Salur

  • Year-round crops

    Under cover, cucumber can be grown for the whole year in Salur, so you can supply buyers every week instead of one open-field season.

  • 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.

  • Less water

    Drip irrigation under cover uses less water than flood irrigation, and the roof keeps August's 283 mm of rain off the crop and the soil.

  • 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.

  • Subsidy eligible

    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.[5]

Which polyhouse suits Salur?

For polyhouse farming in Salur, the structure decides which months you can crop and what it costs to run. The heat in Salur comes with dry air. In April to May, average highs reach 40°C while average humidity is only about 50%. In that dry air, wet pads can bring a 40°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. For vine crops such as capsicum and cucumber, a naturally ventilated polyhouse with a shade screen works from July to January and costs less to run.

Protected structures to compare

Plan for heavy rain in August (about 283 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 Salur

Based on Salur'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. Lilium and strawberry 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 Salur.

Months each crop suits in Salur

CropNaturally ventilated polyhouseWith Fan & Pad cooling
CapsicumJul–JanJun–Apr
TomatoJul–JanJun–Apr
CucumberJun–FebAll year
Chilli pepperJul–JanAll year
BrinjalJul–JanAll year
LettuceNov–DecJul–Feb
BroccoliDifficultDec–Jan
StrawberryDifficultDec–Jan
RoseNov–DecOct–Feb
GerberaNov–DecSep–Feb
CarnationDifficultNov–Jan
ChrysanthemumNov–DecOct–Feb
AnthuriumOct–NovFeb–Mar and Jun–Nov
OrchidsOct–NovFeb–Mar and Jun–Nov
LiliumDifficultDec–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.

Suggested crops for Salur

Selling your harvest in and around Salur

50,000People in Salur (Census 2011)[1]
₹7,341Spending per person per month, urban Andhra Pradesh, 2023–24[6]
520 kmto Hyderabad, the nearest metro (straight line)

The Census counted 48,000 people in Salur in 2001 and 50,000 in 2011, about the same. In 1991 it was 43,000.[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.[6] Local demand in Salur 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 Salur with Kryzen

We have built 30 projects in Andhra Pradesh so far (see our project map (opens in a new tab)). Salur is about 840 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.

Towns near Salur

We also plan and build farms in these towns near Salur:

Map of Andhra Pradesh

Check other locations in Andhra Pradesh

We have farm planning pages for 84 towns in Andhra Pradesh, each with its own climate, crops and market notes.

All Andhra Pradesh locations

Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.

Polyhouse farming in Salur: FAQs

Can a polyhouse farm run all year in Salur?

Yes, with the right structure. For Salur we would plan a Fan & Pad polyhouse for leafy greens. Even then, lettuce is hard to grow in March to June, so plan another crop for those months.

Which polyhouse is best for Salur?

With April highs of about 40°C and 47% 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 Salur?

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 Salur?

It can be, if the crop, the structure and the buyers match. In Salur, 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 Salur?

Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 840 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 Salur 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.

Sudhir Devkar

Sudhir Devkar

Founder & CEO, Kryzen Biotech

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.

Sources

  1. Wikipedia · Salur (opens in a new tab)
  2. NASA Langley Research Center · POWER Climatology API: long-term monthly averages (opens in a new tab)
  3. Rubel & Kottek, University of Veterinary Medicine Vienna · World map of the Köppen–Geiger climate classification (opens in a new tab)
  4. Registry of Open Data on AWS · Terrain Tiles: global elevation data (opens in a new tab)
  5. Ministry of Agriculture and Farmers Welfare · Mission for Integrated Development of Horticulture (MIDH) (opens in a new tab)
  6. Ministry of Statistics and Programme Implementation (MoSPI) · Household Consumption Expenditure Survey 2023–24: press note (opens in a new tab)