Synthesis of silver nanoparticles from neem and cow dung, their characterization, and their application as a nano pesticide and nano fertilizerYash N. Ardesana, Ravi Ajudia, Dhruvi Patel and N. SrinivasE3S Web Conf., 619 (2025) 04002DOI: https://doi.org/10.1051/e3sconf/202561904002