Erigeron Annuus (l.) Pers., As A Green Manurefor Ameliorating Soil Exposed To Acid Rain In Southern China

摘要

seedlings grown on a control that was not manured. Conclusions E. annuus could maintain a good growth in the acid lateritic field soil. Cultivating this plant and applying it to the soil with a rate of 1.6 ton ha~(-1) doubled the soil K and P concentrations and increased soil exchangeable Ca and Mg concentrations by around 25%. This species would be a good green manure candidate for growing in the acid soils of southern China. Application of E. annuus also has beneficial effects on crop growth through reduced Al toxicity and cation leaching. Recommendations and perspectives Since E. annuus would improve soil pH and nutrient concentrations with minimum care, it is recommended for treating acid soils with poor yield whenever a low-cost solution is required.