004660000a22001690004500 0120007703 100 630.685 AGR.70 Sparks, Donald L Advances in Agronomy Vol 70 California, Academic Press 2001 xi 369 70 70 Desertified Land, Carbon sequestration, Human nutrition,Nitrogen cycling, Methane Emissions, Organic farming BK 366384 366384 0 0 0 0 KAUCOAV KAUCOAV 2014-05-02 0 630.685 AGR.70 KAU_COAV-26986 2014-05-02 00:00:00 2014-05-02 BK