Nice to see people are interested in PH cultivation in East Godavari Dist where everything is excess Water, Temperatures and Humidity. I am one among you who had tough time to take a decision as many of the experts in Horticulture where pessimistic about PH in East Godavari. But I took it up as challenge and I have already started to build them in 2 acres (of course with Subsidy). My site is around 40 KM from Rajamundry on NH5 towards Vizag. There are some recommendations that you need to follow when you are doing PH in high temperatures and Humidity. This is my two cents of advice that I am implementing in my polyhouse.
- Instead of putting insect net on the sides, it is better to use shadenet which is made up of mono-filament fibre.
- Instead of using normal shadenet on top (under the poly film), use Aluminet which will reduce the temperature by 4 to 5 degrees inside PH as it reflects some heat from top. This could be expensive when compared to shadenet
- Use of Air Circulation fans to reduce the effect of humidity to an extend.
Also, points 1 and 2 are already approved by Govt of AP as standard where PH is located in high humidity regions.
Also if you want to go with smaller budget first to try out on your own then it is better try out the Walk-in Tunnel type PH with 4m height and about 8m (span) with 50m length. You can put polysheet on top and shadenet/Insect net on the sides. You can also put self propelling exhaust fans (that we see these days on top of the industrial sheds). This way you can control the humidity well. It also cost less about 8 to 10 lakhs.
Also the structure and material used would depend on what kind of crops are you going to grow in. Are you looking for vegetables. As I could see you are planning for Colored Capsicum. Also plan your market well. As this is the most crucial of them all as many of the PH farmers are still struggling with market. It is not so easy as we think.
You can PM and then we can discuss it over a call.