J.A. Roker – författare

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2 produkter

1. 

   Controlling nitrogen flows and losses

   Av D.J. Hatch, D.R. Chadwick m. fl.

   Inbunden, 2004

   2596 kr

   Lägg i varukorg

   "This book is a synthesis of contributions drawn from the 12th Nitrogen Workshop held at the University of Exeter, UK. It provides a valuable compilation of current research, aimed at reconciling the environmental and economic components of N cycling within the context of a productive agricultural …

2. 

   Optimisation of nutrient cycling and soil quality for sustainable grasslands

   Av S.C. Jarvis, P.J. Murray m. fl.

   Häftad, 2005

   934 kr

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   This book brings together two aspects of grassland soil management which, by and large, have hitherto been considered separately. Issues related to nutrient cycling and soil quality have dominated research directed towards aiding broad and local scale policy issues for improving land use. …