01 មករា 2002 This book includes question and answers on how to improve and maintain tropical soil fertility. It also includes activity guides and a resource listing.
The mission of The Vetiver Network International (TVNI) is to promote the worldwide use of the Vetiver System (VS) for a sustainable environment particularly in relation to land and water. Enhanced by photo galleries, this site offers a wealth of information with regard to vetiver applications...
A brief video ofChris McDonoughdescribing the issues of soil erosion in black cracking clay soils in Tanzania, showing the importance of conservation farming techniques to help overcome this.