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The Great Plant Debate

Classroom Designs

We are students from the International School of General Education from St.Petersburg, Russia. You can learn something about our school from the site http://www.ort.spb.ru/school_e.htm1. We are:

    Muranova Olga, 9th grade
    Yavits Alexey, 7th grade
    Kogan Anna, 6th grade
    Vorontsov Michael, 7th grade
    Kilishek Roma, 7th grade.

We are very interested in participating in your project and hope that our ideas are not so bad and we would like to share them with you. You should keep in mind that English isn't our mother language and you should forgive our mistakes. We will be brief.

As soil for plants we recommend a porous material, impregnated and moistened by nutritious mix[its ingredients present below], for example, penoplast.It is a russian word, we did not find if in a dictionary. Boxes for computers are made of it.

Ingredients for nutritious mix

The main of them are K,N,P,Na,Ca. We recommend them in following connections: NH4OH, CO(NH2)2, NH4H2PO+(NH4)2 HPO4, KCL+NaCL,KCl+NaCl,KNO3+NaNO3,Ca(NO3)2,NH4NO3.

The soil is constantly moistened by a special system arranged as the apparatus for blood transfusion.

Gravitropism..

For reduction of the influence of the microgravity we recommend the following.The soil is distributed on a surface of a round drum, which rotates with the constant velocity.in this stems grow in the direction of the drum's centre and roots grow in opposite direction. This hardware imitates the conditions of the normal gravity. The lamp is located in the centre of the drum and provides the necessary illumination.

To the point, such accommodation of the lamp and plants is more economical. We assume, that energy,necessary for illumination and rotation of the drum could be partly provided by the physical exercises of the crew members.

Improving the growth conditions

It is known fact, that electric current influenced the plants on the Earth. It improves the linear growth, the feeding and development of fito-hormones. Why not to test this property of the electricity in Space? For this purpose it is necessary to pass an electric current through the stems of the plants during 2-3 hours every day for 1,5 month. A voltage should be equal to 0,15 v.

We recommend also to place inside the greenhouse the monocrate water plant Chlorellae. Chlorelae quickly makes multiple copies and produces plenty of oxygen which is of great importance for the plants and crew members as well. In the same time Chlorellae is a very good organic fertilizer and a wonderful sample for genetic experiments in the Space.

We also recommend to grow alongside the Super dwarf wheat, but Pisum Sativum also. Pisum Sativum grows very fast, it's seeds can be stored for a long time and give roots very quickly. It can accommodate nitrogen from the environment and may be used as a good fertilizer after vegetation. Leaves, stems and roots of Pisum Sativum gives a good material for bio experiments.

We tried to design our greenhouse and have made a picture of it.

student drawing of a greenhouse
To View the whole picture please click on this small image.

We also would like to show you our work made as MicroWorlds project on the MSDOS platform. We realize that this work is out of instructions and project rules, but we hope that you find the opportunity and time to look at it. It's worth seeing!

All the best. Thank you for your time.

Olga, Anna, Michael, Roma, Alexey and the teachers Olga Tuzova and Nina Andreeva.


Olga Tuzova, Ph.D.
Computer Science teacher,
International School of General Education,
St.Petersburg, Russia,
E-mail olgatu@ort.spb.ru
URL http:\\www.ort.spb.ru


 
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