Paper · NASA Technical Reports Server (NASA)

A method of variable spacing for controlled plant growth systems in spaceflight and terrestrial agriculture applications

Jerry Knox

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verbatim quotes
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citations
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Open access

Abstract

A higher plant growth system for Controlled Ecological Life Support System (CELSS) applications is described. The system permits independent movement of individual plants during growth. Enclosed within variable geometry growth chambers, the system allocates only the volume required by the growing plants. This variable spacing system maintains isolation between root and shoot environments, providing individual control for optimal growth. The advantages of the system for hydroponic and aeroponic growth chambers are discussed. Two applications are presented: (1) the growth of soybeans in a space station common module, and (2) in a terrestrial city greenhouse.

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Claims 3

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The system permits independent movement of individual plants during growth.

Taxon
plante0
Outcome
independent movement of individual plantse0
Value
individuale0

Verbatim

e0

“The system permits independent movement of individual plants during growth”

✓ located verbatim in the source · abstract, characters 110–184 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The system allocates only the volume required by growing plants.

Taxon
plantsViridiplantaee0
Outcome
volume required by the growing plantse0
Value
only the volume requirede0

Verbatim

e0

“Enclosed within variable geometry growth chambers, the system allocates only the volume required by the growing plants”

✓ located verbatim in the source · abstract, characters 186–304 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The variable spacing system maintains separation of root and shoot environments and allows individual control.

Taxon
plantt0
Outcome
isolation between root and shoot environmentse0
Value
individual controle0

Verbatim

e0

“This variable spacing system maintains isolation between root and shoot environments, providing individual control for optimal growth”

✓ located verbatim in the source · abstract, characters 306–439 · show in text ↑
t0

“plant growth systems”

✓ located verbatim in the source · title, characters 44–64 · show in text ↑