Alginate-starch hydrogel capsules with hydrolysed anaerobic digestate for controlled micronutrient fertilisation.
Sodium alginate was used as the network-forming biological macromolecule in hydrogel capsules with corn starch and hydrolysed anaerobic digestate (AD). The formulation series was used to determine how AD and starch contents affected capsule integrity, mechanical strength, swelling, micronutrient sorption, and release....