| sing wastewater for irrigation of crops represents an attractive alternative to disposal. Typically, municipal wastewaters are high in sodium, and the resulting high sodium absorption ratio (SAR) deteriorates the soil structure making it impermeable to air and water. The present study tested the hypothesis that gypsum applied after disking and anionic polyacrylamide (PAM) in solution reduce crust formation, and improve the infiltration rate of water into soil irrigated with high salt and sodium water. Two soil amendments were applied to plots furrow-irrigated with wastewater. The amendments were gypsum (11 Mg ha;double those of the control, and significantly different (P... |
