Hydroponic farm construction · Bihar

Hydroponic Farm Construction in Danapur

Monthly climate, crop windows and nearby markets for a hydroponic farm in Danapur, 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

Hydroponic farm construction in Danapur: nFT flatbed hydroponic farm with lettuce, built by Kryzen

Planning hydroponic farm construction in Danapur? Danapur is a mid-sized city in Patna district, Bihar, home to about 1.8 lakh people (Census 2011)[1], about 480 km from Kolkata. This guide works from Danapur's own monthly climate to suggest the protected structure, the hydroponic system and the crops to start with, and the months each crop is likely to do well.

Climate for hydroponic farm construction in Danapur

May is the hottest month in Danapur, with average daily highs of about 42°C. January has the coolest nights, averaging 8°C.[2] The area gets about 996 mm of rain a year, most of it in June to September, peaking in July at about 276 mm. Average humidity stays at 75% or more in July to September, which raises the risk of leaf disease and slows evaporative cooling. On the Köppen–Geiger climate map, Danapur falls in the humid subtropical with dry winters zone (Cwa).[3]

Danapur climate by month

MonthAvg high (°C)Avg low (°C)Humidity (%)Rain (mm)
Jan23.18.05111
Feb28.311.74414
Mar34.917.5319
Apr40.523.92614
May42.027.93450
Jun39.629.550152
Jul33.926.977276
Aug32.426.083233
Sep31.324.784181
Oct30.620.47451
Nov27.314.4642
Dec23.69.5583
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Danapur. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[2]

Which greenhouse suits Danapur?

For hydroponic farm construction in Danapur, the structure decides which months you can crop and what it costs to run. The heat in Danapur comes with dry air. In April to June, average highs reach 42°C while average humidity is only about 37%. In that dry air, wet pads can bring a 42°C May afternoon down to roughly 31°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 February and October to November and costs less to run.

Protected structures to compare

Plan for heavy rain in July (about 276 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. Sunlight peaks in April at about 6.4 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 February and October to November, when it is mild and fairly dry.

Hydroponic crops for Danapur

Based on Danapur's climate, the crops with the longest growing windows are basil (10 months), mint (10 months) and coriander (9 months). Basil fits February to November with Fan & Pad cooling. These are the crops we would plan first for hydroponic farm construction in Danapur.

Months each crop suits in Danapur

CropNaturally ventilated polyhouseWith Fan & Pad cooling
LettuceNov–JanOct–Apr
SpinachNov–JanOct–Apr
CorianderNov–FebAug–Apr
ParsleyNov–JanOct–Apr
BasilFeb and Jul–NovFeb–Nov
MintSep–FebJul–Apr
CucumberJul–NovMar–Nov
TomatoFeb and Oct–DecFeb–Apr and Sep–Dec
CapsicumFeb and Oct–NovFeb–Apr and Aug–Nov
StrawberryDec–JanNov–Feb
Kryzen planning estimate from the monthly averages above and each crop's usual day and night temperature range. Variety, nutrient temperature and shading change the result, so confirm with a trial.

Hydroponic systems for these crops

Suggested crops for Danapur

Selling your harvest in and around Danapur

1.8 lakhPeople in Danapur (Census 2011)[1]
₹5,165Spending per person per month, urban Bihar, 2023–24[4]
480 kmto Kolkata, the nearest metro (straight line)

The Census counted 0 people in Danapur in 2001 and 1.8 lakh in 2011, a rise of 1012350%.[1] Urban households in Bihar spent an average of ₹5,165 per person per month in 2023–24, below the all-India urban average of ₹7,078.[4] Danapur 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. Patna, about 10 km away, is the nearest larger market on our list.

Hydroponic farm construction in Danapur with Kryzen

We have built 2 projects in Bihar so far (see our project map (opens in a new tab)). Danapur is about 1,180 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.

Towns near Danapur

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

Map of Bihar

Check other locations in Bihar

We have farm planning pages for 72 towns in Bihar, each with its own climate, crops and market notes.

All Bihar locations

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

Hydroponic farm construction in Danapur: FAQs

Can a hydroponic farm run all year in Danapur?

Yes, with the right structure. For Danapur 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 Danapur?

With May highs of about 42°C and 34% average humidity in that month, we would start with a Fan & Pad polyhouse for leafy greens.

Which hydroponic crops should I start with in Danapur?

Going by the monthly climate, basil, mint and coriander have the longest growing windows. Confirm prices and volumes with buyers before you plant.

Does Kryzen build hydroponic farms in Danapur?

Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 1,180 km away, and we have built 2 projects in Bihar.

Is there a subsidy for polyhouse or hydroponic farms in Bihar?

Yes. Protected cultivation projects in Bihar 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 Danapur 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 · Danapur (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. Ministry of Statistics and Programme Implementation (MoSPI) · Household Consumption Expenditure Survey 2023–24: press note (opens in a new tab)