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Noah Abrahams

πŸ‘€ Speaker
73 total appearances

Appearances Over Time

Podcast Appearances

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

Exactly.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

And so what we end up with is nitrate being leached out of the soil into the water.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

So once the nitrate gets into the water, it basically enriches the water with nitrogen and that leads to algal blooms.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

And it can also impact corals and can lead to bleaching events.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

And it can also affect our atmosphere on that bigger scale from the production of nitrous oxide as well.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

Nitrous oxide too.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

Which we haven't even gotten to yet.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

So this is our third one, which is basically any nitrate that isn't leached and isn't consumed, then undergoes further processes to ultimately form nitrous oxide or N2O.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

And that is a greenhouse gas.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

The problem is that nitrous oxide can actually hold way more energy than carbon dioxide.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

In terms of what we can do, one strategy, which is what I was researching, is creating slow-release fertilizers.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

So the idea is we put the same amount of nitrogen in the soil, but we put an additive effectively with the fertilizer to slow down its conversion in that very first step so that it remains as unreacted urea in the soil for a longer period of time.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

So there's two sort of approaches with these slow-release fertilizers.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

One is to create a coating around the fertilizer that actually helps it remain intact so the fertilizer just remains unreacted in its coating.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

So this is using solid granules.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

Okay, sort of like the plant food that I'd spread around.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

Okay.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

So the idea is you get your urea granules, which are very easy to make, very cheap, very easily stored, easily transportable.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

That's why they're so popular.

The Science Show
Getting more from fertiliser, viral DNA's vital role and help from hookworms!

And then you create a coating, typically a polymer coating.