[Greenbuilding] rooftop or apartment gardening

[sanjay jain]

The composting toilet group had a post about growing rice back in 2008:

Dear All

Have been working on a source separating compost toilet for some years and have

used one.

This is an Indian style squatting pan which separates urine and faeces and wash

water.

The urine I have used to cultivate rice on the roof . The yield has been good

and is roughly 1.2 kgs per square metre

The faeces gets composted and is used in the garden down below in the backyard.

The water for the rice cultivation comes from treated grey water and a bit of

rainwater whenever it rains

On my rooftop of 60 square metres I can grow three crops and get about 200 kgs

of rice.

The phosphate in the detergent seems to be a good nutrient and the urine gives

enough N,P AND K plus micro nutrients

Here is a youtube movie on this



<object width="425" height="355"><param name="movie"

value="http://www.youtube.com/v/88gb3QWA7i0&hl=en"></param><param name="wmode"

value="transparent"></param><embed

src="http://www.youtube.com/v/88gb3QWA7i0&hl=en"

type="application/x-shockwave-flash" wmode="transparent" width="425"

height="355"></embed></object>



regards

Vishwanath, www.rainwaterclub.org

--- On Mon, 4/11/11, Benjamin Pratt <benjamin.g.pratt at gmail.com> wrote:

From: Benjamin Pratt <benjamin.g.pratt at gmail.com>
Subject: [Greenbuilding] rooftop or apartment gardening
To: "Green Building" <greenbuilding at lists.bioenergylists.org>
Date: Monday, April 11, 2011, 12:19 AM

One of my students wants to design a system for gardening in urban environments.  Can anyone link me to any existing examples? His idea is to use as little space as possible. 

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