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  • Writer's pictureLuke Davidson

A Deeper Look at the Benefits of Ascophyllum nodosum and Ecklonia maxima for Agriculture

Updated: Apr 17, 2023


📚 I have had the opportunity to study the use of seaweed extracts as a soil conditioner and crop biostimulant. The two most widely used seaweed species in agriculture are Ascophyllum nodosum and Ecklonia maxima, and they offer different benefits depending on their application.


🌿Ascophyllum nodosum, commonly known as rockweed, contains high concentrations of cytokinins and gibberellins. These plant growth regulators directly stimulate vegetative growth, flowering, and fruit set in crops. Additionally, Ascophyllum nodosum extracts enhance crop tolerance to environmental stresses such as drought, salinity, and extreme temperatures. These benefits can help increase crop yield and quality, making it a popular choice among farmers and growers.


🌿Ecklonia maxima, a brown macroalgae, is another popular seaweed species used in agriculture. Its extracts are rich in natural auxins that promote root growth and development. The root system plays a crucial role in nutrient uptake, water absorption, and overall plant health. By stimulating root growth, Ecklonia maxima extracts improve crop resilience and help increase yield potential. Additionally, kelp extract contains a wide range of beneficial compounds such as vitamins, proteins, amino acids, and organic acids. These compounds help plants cope with biotic and abiotic stresses, such as pests, diseases, and extreme weather conditions.


🌎 One of the challenges of using seaweed extracts in agriculture is ensuring their quality and consistency. The extraction process, storage, and transportation can affect the concentration and composition of the extracts, leading to variations in their efficacy. Therefore, it is important to source seaweed extracts from reputable suppliers and to use products that have undergone rigorous testing and quality control measures.


➡️In conclusion, Ascophyllum nodosum and Ecklonia maxima offer unique benefits to crops depending on their application. By understanding their modes of action and potential uses, farmers and growers can optimize their application for improved crop yield, quality, and resilience. As an agronomist, I believe that seaweed extracts have great potential in sustainable agriculture and can contribute to a more resilient and food-secure future.

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