TY - BOOK AU - KUMAR H.D. TI - AGRICULTURAL ECOLOGY SN - 8176489948 (HBK) U1 - 577 KUM/AG PY - 2006/// CY - NEW DELHI PB - A.P.H.PUBLISHING CORPORATION KW - GENERAL INTRODUCTION KW - AGRICULTURE AND ENVIRONMENT KW - EROSION AND LAND DEGRADATION KW - MANAGEMENT OF SOIL,WATER ANDNUTRIENTS KW - ABIOTIC STRESSES KW - PLANT PROTECTION ER -