Friday, October 29, 2010

Finished the hydroponics system

I have a cold!  =)  However that did give me time between my naps to work on the project.  I got everything put together, tested, and planted.  Here is the rundown of what has happened thus far:

This is the lettuce seedlings in the rock wool and hydroponic nutrients at day 5.











Lettuce in standard peat starters at day 7









Here is the system.  It consists of a 4"x4"x72" pvc, 10 3" holes for baskets, 5 1" holes for the nutrient lines, and end caps.  Next to the table is a 10 gallon tote that serves as the reservoir.  There is a 3/4" black vinyl line that goes from the pump in the reservoir to a manifold.  The manifold has 5 1/4" drip irrigation tubes coming out of it that then go in between pairs of plants.  The line passes through a rubber stopper and then ends in a T.  The T sprays each basket, watering and feeding the plants.  Finally there is a drain on the right side that drains into reservoir.  It is also made out of 3/4" black vinyl.

Close up of the channel.  Starting from the left there are 7 strawberry plants and then 3 broccoli plants.  There are two different kinds of lights.

The left side has 150w equivalent CFLs in the 2700k range.  This is suppose to stimulate flowering and fruiting.  Each one puts out about 2400 lumens.

The right side has 100w equivalent 6700k (daylight) range CFLs.  These should stimulate vegetative growth, making the plants leaf faster, since the broccoli is much smaller.  Each one of these bulbs puts out 1700 lumens.


Here you can see the nutrient water streaming out of the T.  The water hits the basket splashing all around inside the Hydroton (the clay pellets).  The pellets keep the roots moist, but still allows the roots plenty of air, thus reducing the amounts of roots necessary and allowing the plant to put more energy into growing.

I tried two different kinds of sprayers, but they didn't work very well.



Here are the two bastards that never worked properly.  So I went with the simple but effective route.

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