Utilization Efficiency of Different Industrial Byproducts in Amelioration of Saline-Sodic Soils

Abstract

A field experiment was conducted during two successive years (2011/2012 and 2012/2013) in a clay saline soil located at South of El-Hussynia plain, Research Station ,Port-Said Governorate, Egypt. This study aims to evaluate the utilization efficiency of some industrial byproducts i.e. Sugar lime, vinasse, bypass , pyrite (FeS2) and aluminum sulfate (Al2 (SO4)318H2O) individual and interaction among them as a soil amendments and their effects on improving some chemical and physical properties of saline sodic soils, comparing with gypsum application, under Intermittent leaching technique was adopted using El-Salam canal water. The results showed that the chemical and physical properties of the studied soil were clearly improved due to amendments addition. The common parameters of saline sodic soil i.e., EC, pH, ESP, RSE, B.D, P.R, and WTD were clearly improved. The superior improvement of these parameters was resulted from T8, T9 andT7. The amendment can be arranged, ascending as follows: T1< T2< T10< T6< T3< T5< T4< T11< T13< T12< T7< T9< T8 for both surface and subsurface layers. The final aim is to displace Na from an exchange complex and replace it with Ca, leading to a decrease of exchangeable sodium percentage (ESP) or increased removal sodium efficiency (RSE) consequently improvement of soil structure. An additional advantage to this strategy is that any mixture is inexpensive and ready available in large quantities in contrast to gypsum in this study.

Improving Salt-Affected Soils and Productivity of Alfalfa by Using some Soil Conditioners and Subsoiling Tillage

“…In this concern, explain the promotive effect of soil conditioners on soil physical properties to the decomposition of these conditioners, which leads to the release of exchangeable calcium, consequently encouraging the aggregation formation. These results are in line with those obtained by Mansour et al (2014) and Abbady (2022).…”

Improving Salt-Affected Soils for Enhanced Fodder Beet Productivity: Effects of Soil Conditioners and Tillage Techniques

“…The beneficial effect of soil conditioners on physical soil properties, especially filter mud may be attributed to the decomposition of the conditioners, consequently increasing exchangeable calcium, resulting to enhance aggregation formation, finally, improve the soils physical properties (Abd El-Hamid et al, 2005). These results agree with those obtained by Mansour et al, (2014) and Abbady, (2022). Respecting the interaction effect, the data reveal that the physical soil properties after harvest was significantly affected by the interaction between the tillage system and soil conditioners, where using deep tillage enhanced the effect of soil conditioners on the physical properties.…”