Questions tagged [plant]

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What are some organic-approved solvents I can use to make my own liquid agri-mixes? [migrated]

I have a few ideas for organic pesticides/fungicides etc. They're intended to be sprayable, and ideally soluble in water. What are some organic-approved solvents?
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2answers
83 views

Why does chlorophyll only come in green? [closed]

Plants do not only come in green but chlorophyll does. The pigment in the plant creates other colored plants other then green. Could a plant grow under an alternative light spectrum like a green sun ...
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0answers
36 views

Importance of soil adjusted vegetation indices for indoor use

I've been doing research on vegetation indices to try and prepare for my indoor plant analysis project. I have a question about soil adjustments, specifically soil line based indices like PVI. Is ...
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0answers
58 views

Where on Earth does the atmosphere have the most $O_2$ concentration?

Is there a map that shows the average oxygen concentration in the atmosphere? Seems to me that it would be where the most plants are but I wonder if population and industry make a difference in oxygen ...
9
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1answer
2k views

When did wildfires start to occur on earth?

An oxidizer, fuel, and heat are needed for a fire. When considering oxygen as the oxidizer, an oxygen concentration of approximately 16% is required for combustion. Plant material is the fuel ...
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0answers
27 views

Where I find the info about what plants, trees can be planted in a locality

I would like to know what plants, trees can be planted in a locality. I wanted this info around the globe based on latitude and longitude or by some other means. Is there a source organisation/source ...
4
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1answer
315 views

Which plant produces the most oxygen?

Which plant is the most efficient in making oxygen for it's weight? I want to think it is the greenest plant with more leaves and least ...