This Lab manual provides knowledge and understanding for large as well as small class group of the undergraduate and post-graduate or agricultural students,. This lab manual serves to provide students with information necessary to conduct activities and experiment that will enhance their understanding or agricultural science through a hand and approcah the objective is to transfer knowledge of the subject thought the world person, who is interested in environmental study. Contents: Nature and Prosperities of Soil Carbon Sequestration in Dryland Soils Analysis of Soil Nutrient Balance Assessing Modelling of Soil Carbon Stocks Soil Testing and Analytical Methods Analysis of Soil Organic Matter Analysis of Soil Amendments Analysis and Testing of Phosphate Rock in Soil