Evening Mr.Anand,
woah… no expert here… i am just sharing small observations and practises i follow. most of us have read it, seen it, but dont practise it.
setup (infrastructure) is also one of my favourite topic
as the polyhouse cost is the major expense in any project.
so lets go back to the basics and start.
various setup types, fanpad house, glass house, tunnel house, shade net, polyhouse etc are all different as we know. and they were invented in various countries, for artificially creating an environment favourable for the crop, so some countries had cold weather, some had high winds, some had high temperature etc.
so just because someone in africa is growing capsicum in fanpad, doesnt mean i need to have a fan pad system to grow capsicum in my location.
and no setup is standard… most of the polyhouse designs i see around my region are a totally replica of polyhouses in New Zealand. standard height of say 20 feet, arc gap of 1 meter, hockey of 1 meter, foundation matrix of 4 mtr x 8 mtr etc. this is just an hypothetical example. so there is nothing standard in this. we can make our own setup for the crops we want, and the weather conditions in the region.
everybody says capsicum is grown best in polyhouse, maybe in different climate conditions. but in india, where its hot most of the times, i would rather prefer a protected top with 100% open sides (with insect nets)
bamboo poly house are also worth. cost is very less. maybe the height and strength would be a bit less as compared to GI pipes, but are the winds really that strong in our region, and is a height of 20 feet really required?
to tell you honestly, when i started, i wanted my setup to look fancy and neat. the best of everything. but now i wonder, is all that really required?
over all this time, i have learned that i can have similar production if not better in much cheaper setups than a polyhouse.
so as an investor, and with the climate conditions in my region, i would prefer growing capsicum in shadenets, but only the rains would be an issue, so a covered top, with good elevation and vents is what i would prefer.
if you have finalized a polyhouse setup, then consider the wind movement (direction) in your region to align the arcs of the polyhouse. as my polyhouse is close to a damn, i have wind movements from that region, so my arcs are faced towards it.
some people say the bed direction should be east-west, or north - south, dont remember, for better sun light. but i never really bought the idea.
then the gutter slope, if you want to store the water, the slope needs to be in that direction.
there are many small things, but i am thinking, have you decided to go for a polyhouse? or are you in the research phase?
i am really sorry to cut it short, we can discuss more if you wish.
Vivek