A discussion has been started on studying influence of Si-NP on rice plant ¹, which is proceeded with simple SD system as follow.

It shows that input for the plant are water, lighting, nutrients, and diseses, while outputs are height, branches, leaves, and fruits. There are also other plants as competitors in gaining the same water and nutrien resources.

Later, the diagram is advanced ² to include soil and air condition.

Possible missing or optional elements are ²

• Soil microbes (for natural or bio-enhanced nutrient availability);
• Root zone temperature (important for hydroponic or substrate setups);
• Leaf surface humidity or wetness (related to disease susceptibility); and
• Feedback loops if you’re modeling automation.

notes

• And, of course, Si-NP has not yet been included in the system.
• This note is part of other note ³.

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