Chitosan-Based Polyion Multilayer Coating on NPK Fertilizer as Controlled Released Fertilizer

Table 1

Sample identifications.

Sample ID	Preparation method
TC	Uncoated fertilizer
C10	10 layers of chitosan-coated fertilizer (CCCCCCCCCC)
(CP)5	Coated fertilizer with 5 layers of chitosan and 5 layers of pectin with alternating arrangement (CPCPCPCPCP)
(CT)5	Coated fertilizer with 5 layers of chitosan and 5 layers of TPP with alternating arrangement (CTCTCTCTCT)
(CA)5	Coated fertilizer with 5 layers of chitosan and 5 layers of alginate with alternating arrangement (CACACACACA)
(C2A2)2C2	Coated fertilizer with 6 layers of chitosan and 4 layers of alginate with arrangement (CCAACCAACC)
C3A4C3	Coated fertilizer with 6 layers of chitosan and 4 layers of alginate with arrangement (CCCAAAACCC)