TY - BOOK AU - Rengel,Zed TI - Improving water and nutrient use efficiency in food production systems SN - 9780813819891 (hardback : alk. paper) U1 - 631.5/82 23 PY - 2013/// CY - Iowa, USA PB - Wiley-Blackwell KW - Crops KW - Water conservation KW - Fertilizers KW - Plant nutrients ER -