Research Article

Thermal, Morphological, and Biodegradability Properties of Bioplastic Fertilizer Composites Made of Oil Palm Biomass, Fertilizer, and Poly(hydroxybutyrate-co-valerate)

Figure 4

SEM of bioplastic fertilizer (BpF) composites. (a) PHBv/NPKC1, (b) PHBv/NPKC2, (c) PHBv/EFB/NPKC1, and (d) PHBv/EFB/NPKC2. Note: PHBv (poly(hydroxybutyrate-co-valerate)), NPKC1 (uncoated) and NPKC2 (coated), and EFB (empty fruit bunch).
(a)
(b)
(c)
(d)