VIETNAM NATIONAL UNIVERSITY OF AGRICULTURE FACULTY OF AGRONOMY --------------------------------------------------- UNDERGRADUATE THESIS TITLE: EFFECT OF BIOCHAR ON GROWTH AND PHYSIOLOGY OF SUGARCANE UNDER SALINITY CONDITION Supervisor : PhD. VU NGOC THANG Department : INDUSTRIAL AND MEDICINAL PLANTS Student : TRAN THI THUAN Class : K61KHCTT Course : 2016 - 2021 Major : CROP SCIENCE HANOI - 2021 i DECLARATION I hereby declare that this paper is my own work. All results and data in this thesis are absolutely honest and have not been used in a different thesis. All sources used in this paper were cited in references. Hanoi, February 28 th ,2021 Student Tran Thi Thuan ii ACKNOWLEGEMENTS To complete this thesis, I am deeply indebted to many people for their advice, instruction and support. First and foremost, I would like to send my gratitude to my supervisor, Dr. Vu Ngoc Thang, Dept. of Industrial and Medicinal plants, Faculty of Agronomy, Vietnam National University of Agriculture, for his enthusiastic support, helpful advice and considerable encouragement in the completion of my thesis. I would also like to give my gratitude to my teachers who gave me the necessary knowledge and skills during my time here. Especially I would also like to give my gratitude to all of my teachers in faculty of Agronomy. In addition, I would like to acknowledge my family, who always stood by me, for their in conditional love and support, both financially and emotionally throughout my work. Save the best for last, I want to express my thanks to my friends in Vietnam National University of Agriculture for their friendship and support. Hanoi, October 12 st, 2020 Council secretary Instructor Student Tran Thi Thuan