Motivation Letter for Master Program application

Hello, could you help me to correct my motivation letter that i need for applying master program. Thanks u so much.
This is mine:

Dear sir!
I am interested to apply for a Master’s Degree Program in Environmental Modelling starting in 2015.
First of all I would like to present some background about myseft. My name is XXX. I graduated in 2010, from the Czech University of Life Sciences Prague, Czech republic and hold a Bachelors degree in Agricultural Specialization in the study field of Tropical and Subtropical Agriculture. And i am currently working as Research Specialist for Department of Livestock Environment of National Institute of Animal Science belonged to Ministry of Agriculture and Rural Development, Viet Nam.
My main functions are collect analysis data, do researches, report directly to the manager, do oriented basic research, applied research based on matters which is subject to the livestock in order to develop a robust and environmentally friendly farming system, carry out environmental livestock researching projects in cooperation with organizations within and outside the country. As a team member, me and my co-workers had completed some national and international highlighted projects about finding out the suitable diet to ensure weight gains for animals, but to minimize environmental pollution, or use methods such as composting, biogas to limit emissions in livestock wastes, building models of farming with the purpose of reducing environmental pollution of land, water, air, for example: National project of Ministry of Agriculture and Rural Development named “Research and application of science and technology solutions in the pig production to reduce pollution”, foreign invested project named “Optimizing environmentally friendly biogas production from livestock manure” by Denmark. Besides my work, i usually take part in short training courses. During time i have been working here, i realized their own passion, and desire to pursue this field , and I noticed, want to put up with ideas, give new solutions for solving the this issue, I need to improve my level.

In 2014, i was very lucky and glad to know that i achieved a scholarship from Vietnamese Ministry of Agriculture and rural development with name “Biotechnology agriculture and fisheries in 2014” for master program. This is a really great opportunity for me improve ability and learning new methods, techniques in the field of environment. I found so many program from difference universities, but i have chosen to apply for Czech University of Life Sciences Prague, because I really believe and pleased its module system of study that which I had the opportunity to experience during college. After going into understanding Master’s Degree Program in Environmental Modelling, i noticed this program really needed for my work, which i can study how to model the transport of pollutants and contaminants in different environments, and how to describe the transport processes in the atmosphere, soil, groundwater and surface water. And i feel a most important thing that result i can achieve after this master program, i am well prepared for analyzing important environmental processes and for applying a range of techniques for modeling these processes.

In conclusion I want to say that I would like to take part in this program. I am eager to gain new experiences and in my opinion this program is the best way to achieve all what I want to do. As it is an international high standard programme it provides an opportunity to interact with students from various countries. The interaction during the study seems very enriching and exactly what I am looking for. If I would be able to get admission it will provide me an opportunity to explore new venues and polish my skills. I feel field of evironmental modelling on faculty of environment sciences ,belonged to Czech University of Life Sciences Prague is best option for me for my future professional life and career growth. If an opportunity is provided to me I will try my best to prove myself..
Thank you very much for considering my application. I look forward to your positive response.

Yours sincerely,
XXX