TY - BOOK AU - SWARNJEET SINGH TI - SOIL ENZYME ACTIVITIES AND CARBON POOLS IN SOILS AS INFLUENCED BY RICE STRAW AND NITROGEN APPLICATION IN RICE-WHEAT SYSTEM U1 - T 631.417 PY - 2018/// CY - LUDHIANA PB - PAU KW - 1.RICE STRAW 2.SOIL ORGANIC CARBON 3.NITROGEN FERTILIZERS KW - RICE-WHEAT CROPPING SYSTEM KW - LABILE CARBON POOLS ER -