Visual Soil Evaluation

Legal and Institutional Frameworks for Sustainable Soils: A Preliminary Report
By Ben Boer, Ian Hannam
... or enhance production; • To reduce the level of production risk; 51 52 53 54 55 56 57 58 See p. 11, MacNeill, J. 1989, “Strategies for Environment and Development, Our Common Future”, in Future, Commission for the Future, 12:11.
FCS Soil Science L2
By Jill Bishop
57 ) - South African Tourism ; Underground cave ( p . 57 ) - Michael de Young / CORBIS ; Sand golf course ( p . 69 ) - Juan Espi ; Artificial fertiliser ( p . 95 ) - Jan van der Poll Text : Chapter 3 , unit 1 , p .
Understanding and Improving Crop Root Function
By P. J. Gregory
This collection reviews recent research on understanding root system architecture and growth and key interactions in the rhizosphere. It assesses how roots respond to biotic and abiotic stresses.