Effect of Adsorbed Trichoderma harzianum (G-18) and Different Doses of Lime on Biological Nitrogen Fixation Activity in Black Zone Soil of Republic of Tataristan (Russia). Sindh. Uni. Res. J. SS [Internet]. 2005 Jun. 8 [cited 2026 Nov. 6];37(1). Available from: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/6862