GOVINDAN, M, K M SREEKUMAR, and MADHU SUBRAMANIAN. 2011. “Response of Ginger (Zingiber Officinale) to Azospirillum Inoculation at Different Levels of Nitrogen Application*”. The Indian Journal of Agricultural Sciences 79 (10). https://epubs.icar.org.in/index.php/IJAgS/article/view/2526.