Evaluation of the physical properties of slow release urea based on irradiated chitosan as a feed supplementAkhmad Rasyid Syahputra, Ade Lestari Yunus, Asti Nilatany, Oktaviani Oktaviani, Nunung Nuryanthi, Wahidin Teguh Sasongko and Taufiq BachtiarBIO Web of Conferences, 81 (2023) 00003DOI: https://doi.org/10.1051/bioconf/20238100003