Serious soil salinization, including excessive exchangeable sodium and high pH, significantly lower the productivity of the land. Reducing salinity and preventing alkalization in saline-sodic soil by comprehensive improvement practices are urgently required. The combination of aluminum sulfate with various types of fertilizers at different levels are applied on rice paddy with saline-sodic soils to improve soil quality and its future utilization. You can also find high quality aluminum sulfate for sale online for water treatment application.
Materials and Methods
The experiments were conducted in a completely randomized design. Twelve treatments with aluminum sulfate at the rates of 0, 250, 500, and 750 kg hm−2 with inorganic, bio-organic, and organic-inorganic compound fertilizers were performed.
Soil pH, electronic conductivity (EC), cation exchangeable capacity (CEC), exchangeable sodium percentage (ESP), total alkalinity, sodium adsorption ratio (SAR), soil organic carbon (SOC), available nutrients, soluble ions, rice growth, and yield in the saline-sodic soils were measured across all treatments.
The relationship between measured soil attributes is determined using one-way analysis of variance, correlation analysis and systematic cluster analysis.
This application combined with aluminum sulfate at the rate of 500 kg hm-2 with the organic-inorganic compound fertilizer is an effective amendment of saline-sodic soil. These results are likely related to the leaching of Na+ from the soil leaching layer to the salt accumulation layer and desalination in the surface soil, and the increase of SOC improved the colloidal properties and increased fertilizer retention in soil. In addition, the environmental impact of aluminum sulfate applied to soil needs to be further studied.