Sustainable Management of Invasive Algal Waste (Caulerpa prolifera): Biomass Compost for Nitrogen Reduction in Vulnerable Coastal Area
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View abstract on PubMed
Summary
This summary is machine-generated.Composting seaweed waste into valuable fertilizer enhances lettuce growth and nutritional quality. This circular economy approach offers a sustainable solution for coastal waste management and reduces reliance on synthetic fertilizers.
Area Of Science
- Agricultural Science
- Environmental Science
- Marine Biology
Background
- Seaweed biomass removed for coastal management is often treated as waste, posing environmental challenges.
- Composting seaweed supports circular economy principles and aligns with regional policies for bioeconomy and coastal restoration.
Purpose Of The Study
- To evaluate the effects of seaweed compost on lettuce growth, nutrient content, and phenolic compounds.
- To assess the interactive effects of seaweed compost rates (0%, 15%, 35%) and nitrogen (N) supply levels (100%, 60%) on lettuce.
Main Methods
- Lettuce was cultivated with varying rates of Mar Menor seaweed compost and two nitrogen irrigation levels.
- Plant growth, biomass accumulation, nutrient content, and phenolic compound levels were analyzed.
Main Results
- The optimal compost rate of 15% significantly enhanced lettuce growth under both high and reduced nitrogen irrigation.
- Compost addition improved lettuce's nutrient content and increased phenolic compounds, especially under reduced nitrogen conditions.
- Nitrogen irrigation levels did not impact total biomass, but compost application positively influenced crop performance and nutritional quality.
Conclusions
- Seaweed compost is a valuable agricultural input, improving crop yield and nutritional value while reducing synthetic fertilizer dependence.
- This composting strategy provides a sustainable solution for coastal municipalities to manage seaweed waste and promote a circular bioeconomy.
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