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ABA Trading LTD wrote:simple cheap temporary green house made with 20 foot 3/4 inch pvc and 1/2 inch steel .
work in progress, started yesterday evening
ABA Trading LTD wrote:peak clearance is 6 feet, i cud walk upright in it
still trying to decide on system, i have 1 inch rockwool cubes, coco pith, 1 inch net pots and getting 4 inch net pots next week
lemme ask u guys something, do we actually need to use greenhouse plastic in trinidad? or would shade netting be enough?
ABA Trading LTD wrote:peak clearance is 6 feet, i cud walk upright in it
still trying to decide on system, i have 1 inch rockwool cubes, coco pith, 1 inch net pots and getting 4 inch net pots next week
lemme ask u guys something, do we actually need to use greenhouse plastic in trinidad? or would shade netting be enough?
jramsarran wrote:..??.....
boss...i don't mean to be rude eh...
obviously this is your first time farming!
do you mind me asking...where u getting your advice?
where u saw this model?
i foresee a lot of problems down d road.
Thanks for your input. Can you help with a few answers please?jramsarran wrote:...the whole "green house" thing was designed for temperate regions and not the tropics.
hence the heat/ temperature problem and Relative Humidity as well.
...it makes no sense planting something that is commonly grown locally in high quantities. it is impossible to compete with farmers outside using conventional methods.
why would someone invest extra money to grow something that can be grown under normal conditions.
...excessive heat... can cause flowers of certain plants to become sterile..the issue of pollination is a completely different story.
managing the soil or whatever medium will also be a challenge.
Please explain how to correct this problem. Thanks.jramsarran wrote:chemical reactions of fertilizers etc.
eg. a lot of people don't know mixing calcium and phosphorus in concentration results in a chemical reaction which produces an insoluble precipitate....
there are ways to prevent this tho
BTW one system already exists in Maracas, St. Joseph today.In one notable experiment the UVI researchers compared the yields of a leafy herb (basil) and a fruiting vegetable (okra) grown in aquaponic vs. field production systems. Basil and okra were raised in raft hydroponics. Yields of aquaponic basil were three times greater than field-grown, while yields of aquaponic okra were 18 times greater than field-grown. Based on a market price in the U.S. Virgin Islands of $22 per kg for fresh basil with stems, researchers calculated gross income potential. The aquaponic method would result in $515 per cubic meter per year or $110,210 per system per year. This compares to field-produced basil at $172 per cubic meter per year or $36,808 per year for the same production area. When fish sales are included, the aquaponic system yields $134,245 (Rakocy, et al, 2004).
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