Produkt mají v nabídce:
Soil Organic Matter in Temperate AgroecosystemsLong Term Experiments in North America - Paul, Eldor A. a Paustian, Keith H. a Elliott, E. T. a Cole, C. Vernon
The presence - or absence - of soil organic matter (SOM) has important implications for agricultural productivity. A database is included with the book, presenting tabular data for 34 sites in North America.
