Mycorrhiza and Phosphorus Effects on Lettuce

Summary of Effects of arbuscular mycorrhizal inoculation and phosphorus supply on the growth of Lactuca sativa L. and arsenic and phosphorus availability in an arsenic polluted soil under non-sterile conditions

Mycorrhiza and Phosphorus Effects on Lettuce: Boosting Growth in Arsenic-Contaminated Soils

This study explored Mycorrhiza and Phosphorus Effects on Lettuce, focusing on how phosphorus (P) application and arbuscular mycorrhizal fungi (AMF) affect plant growth, P uptake, and arsenic (As) tolerance in lettuce grown in As-polluted soil (total As 250 mg kg−1). The research aimed to determine if a commercial AMF inoculum (CI) combined with P fertilizer (+P at 90 kg P ha−1) could enhance plant performance better than indigenous fungi alone.

Enhanced Lettuce Growth Through Mycorrhiza and Phosphorus Effects

Greenhouse experiments demonstrated that lettuce plants treated with both commercial inoculum and P fertilizer (+CI+P) achieved significantly higher biomass. The combination improved P nutrition while reducing As accumulation in both shoots and roots. These results highlight the practical significance of Mycorrhiza and Phosphorus Effects on Lettuce in promoting growth under toxic soil conditions. Moreover, plants receiving only native AMF showed smaller growth improvements, emphasizing the benefits of targeted inoculation.

Influence on Soil Phosphorus and Arsenic Dynamics

In the rhizosphere of +CI+P plants, P levels were lower compared to −CI+P treatments, indicating greater nutrient uptake. At the same time, As concentrations in the soil did not increase, demonstrating that inoculation and P addition can mitigate As toxicity safely. These findings confirm that Mycorrhiza and Phosphorus Effects on Lettuce extend beyond plant growth, influencing soil nutrient dynamics and overall fertility.

Practical Implications for Contaminated Soil Management

Overall, the study underscores the value of combining beneficial microbes with P fertilization to improve lettuce growth in arsenic-contaminated soils. By applying Mycorrhiza and Phosphorus Effects on Lettuce strategically, farmers can enhance plant health, reduce arsenic uptake, and maintain soil fertility. Consequently, this approach supports sustainable agriculture and food safety in polluted environments.