TY - JOUR ID - 54081 TI - Effects of nano iron oxide powder and urban solid waste compost coated sulfur on chemical properties of a saline-sodic soil JO - Desert JA - JDESERT LA - en SN - 2008-0875 AU - Ghodsi, Abbas AU - Astaraei, AliReza AU - Emami, Hojat AD - Soil Science Department, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran Y1 - 2015 PY - 2015 VL - 20 IS - 1 SP - 39 EP - 46 KW - Sodicity KW - salinity KW - nutrient element KW - Compost KW - Nano material DO - 10.22059/jdesert.2015.54081 N2 - The main limiting factors in saline-sodic soils are high amounts of salts, low soil organic matter (SOM) and lowavailability of macro and micro-nutrients. The effect of different amounts of nano iron oxide powder and urban solidwaste compost coated sulfur (USWCS) on the chemical properties of a saline-sodic soil was investigated. The experimentwas conducted using a randomized complete block design with factorial arrangement and three replications, in a farmnear Qom city. Treatments used in this study included USWCS (0 and 15 ton/ha) and nano iron oxide powder (0 and 20mg/kg); treatments were applied to treated plots of 4 m2 and sunflower seeds were sown. The results show that 20 mg/kgof nano-iron oxide, significantly (P<0.05) increased electrical conductivity of saturation extract (ECe), availability ofnutrient elements (5.26, 30, 18.18% for phosphorous (P), iron (Fe), and copper (Cu), respectively) in soil, while nitrogen(N), pH and sodium adsorption ratio (SAR) in soil decreased significantly (P < 0.05). Fifteen (15) tons/ha of USWCSsignificantly increased soil ECe (6.1%), micro and macro-nutrients amounts (8.3, 21.1, 46.6, 45. 5, and 14.9% for N, P,Fe, Cu, and Manganese (Mn) respectively), but significantly (P < 005) decreased the soil pH and SAR, compared to thecontrol. The combined effect of 20 mg/kg of nano iron oxide and 15 ton/ha of USWCS increased micro-nutrientavailability, but decreased soil pH and SAR significantly. It was concluded that the combined application of USWCSand nano iron oxide increased the availability of nutrients in saline-sodic soil. UR - https://jdesert.ut.ac.ir/article_54081.html L1 - https://jdesert.ut.ac.ir/article_54081_bdfced4eed6226575a5a56bc48861aab.pdf ER -