AOKI, Daisuke

KAMIYA, Takehiro

NISHIDA, Mizuhiko

TAJIMA, Ryosuke

TOKONAMI, Yoshiki

English

Tohoku University Repository (TOUR) / 東北大学機関リポジトリ

 51Poster SessionPP-4Effect of the Degradation Product from Polycarbonates on Komatsuna (Brassica rapa var. perviridis) GrowthYoshiki TOKONAMI1, Daisuke AOKI2, Takehiro KAMIYA3, Ryosuke TAJIMA1 and Mizuhiko NISHIDA11Kawatabi Field Center, Graduate School of Agricultural Science, Tohoku University, Miyagi, 989-6711, Japan 2Department of Applied Chemistry and Biotechnology, Chiba University, Chiba, 263-8522, Japan 3Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, JapanRecently,	a	novel	concept	of	“Plastic	 to	fertilizer”	wherein	urea	derived	from	polycarbonate	(PC)	serves	as	a	fertilizer	source	has	been	presented	(Abe	et	al.,	2021).	This	concept	was	raised	based	on	the	ammonolysis	process	of	PC	degrading	into	urea	and	the	derivative	monomers.	The	aim	of	this	study	is	to	evaluate	the	effectiveness	of	the	urea	derived	from	petroleum-based	PC	and	bio-based	PC	(PIC,	poly	isosorbide	carbonate)	on	crop	growth	in	pot	cultivation.	For	the	growth	test	we	used	komatsuna	(Brassica. Rapa var.	perviridis)	and	determined	whether	the	polycarbonate-derived	urea	is	available	on	the	agricultural	fertilizer	or	not.	Growth	test	was	conducted	in	1/5000a	pot	applied	with	the	five	treatments	as	follows:	(1)	urea	derived	from	petroleum-based	PC	(U-PC);	(2)	PIC	degradation	product	(a	mixture	of	urea	and	starch-based	monomer	of	isosorbide,	U+ISB-PIC);	(3)	commercially	available	urea	(U);	(4)	commercially	available	urea	and	isosorbide	(U+ISB);	(5)	no	urea	application	(−N).	Each	urea	application	rate	equivalent	to	0.5	g	N	pot-1	was	applied.	Fifteen	komatsuna	seeds	were	sowed	into	each	pot	and	finally	seedlings	were	thinned	to	3	plants	for	the	harvesting	period.	The	values	of	the	dry	weight,	plant	height	and	nitrogen	uptake	and	nitrogen	content	in	komatsuna	in	the	U-PC	treatment	showed	no	significant	difference	compared	with	these	values	in	the	U	and	DP-PIC	treatments.	No	significant	difference	between	the	values	in	the	DP-PIC	and	U+ISB	treatments	was	also	detected.	The	results	indicated	that	urea	derived	from	petroleum-	and	bio-based	polycarbonates	are	as	effective	for	komatsuna	growth	as	commercially	available	urea.Reference:	Abe	et	al.	2021.	Green Chem.,	(23),	9030‒9037.

【Poster Presentation】Effect of the Degradation Product from Polycarbonates on Komatsuna (Brassica rapa var. perviridis) Growth

https://tohoku.repo.nii.ac.jp/record/2006768/files/31. Poster Session PP-4.pdf

【Poster Presentation】Effect of the Degradation Product from Polycarbonates on Komatsuna (Brassica rapa var. perviridis) Growth

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