A question, for NFT ,[ PVC pipe ], 20mm plant distance, 20mm row centerline distance , do you water it constantly without stop？or water it 15-20mins/time, stop watering time interval 10-15 mins ...... how many times per day？ what do you do as per your practical production ？
is it a trend for people buy pot or cut flowers online ？wondering what is challenge for delivery as per individual order？
how to lower the greenhouse construction cost ？
Reasonable design, less parts but strong, material cost is just one part of total project cost.
Assembled completely, no welding to avoid the rust.
Reasonable installation in order. arrange labor In efficiency. all workers has to be busy .no repeat of any stage.
using equipments and tools to fasten the procedure. balance labor cost, rental equ6cost, and the earlier construction if may catch up good growing season.
anything else ？pls list your advice .
Advise：
Thicker polyfilm , thermal factor higher is better . if polycarbonate panel will be better
check all the covering if have holes or has gap between it and structure
adding shade curtain inside, keep warm in winter, keep cool in summer
put efficient fans to save electricity
others？ if you have other advice ？
Vertical growing, high density , but needs light enrichment. how about your opinion on cost vs. efficiency ？