“Expedientes Nº08/25/BU/0017 y Nº08/25/BU/0055
Expansión internacional y consolidación de mercados para Ficosterra
Proyecto de subvención destinadas a financiar proyectos de expansión internacional de las PYMES de Castilla y León (2025), con el objetivo de impulsar su presencia en nuevos mercados exteriores y fortalecer su competitividad a nivel global”

Organic Fertilizers: What They Are and Their Importance
April 2, 2024
Five Reasons to Try the Benefits of Seaweed Organic Fertilizers
April 10, 2024Common uses for organic fertilizer
When comparing organic fertilizers with synthetic or chemical ones, it’s crucial to understand the differences in their composition and effects on the soil and crops. While organic fertilizers come from biological material like animal and plantremains, synthetic ones are derived from physical and chemical processes, and their impact on crops is quite distinct, as we will see below.
Organic fertilizers contain essential nutrients for plants, such as nitrogen, phosphorus, and potassium, in addition to other microelements needed for their development.
Conventional or synthetic fertilizers also gather all these nutrients and microelements to support crop development, but they cause soil and water pollution and accumulate heavy metals, affecting biodiversity and the health of ecosystems.
Negative Impacts on Soil from
Excessive Use of Synthetic Fertilizers

- Their excessive application can lead to long-term soil impoverishment, decreasing its natural fertility and creating an artificial dependency on these products.
- It can negatively affect the soil’s microbiota, diminishing its biological activity and its capacity to retain nutrients. Itʼs important to balance their use with the addition of organic matter to the surface to maintain its health and avoid negative environmental impacts.
- Replenishing substances in the soil is crucial for maintaining its fertility and productivity over time. Biological fertilizers play a key role in this process by providing essential nutrients and improving the surface’s qualities.
Ficosterra has developed the seaweed fertilizer Ficosterra-G to regenerate soils exhausted by over-exploitation, serving as an enhancer and structurer that facilitates drainage and rooting of crops.
Benefits of Organic Fertilizers
on Soil Fertility
- Enrich the ground with biological matter, essential for maintaining plant health. As they decompose, they release important nutrients essential for plant growth and efficient water and mineral absorption. Itʼs proven that the use and misuse of non-biological fertilizers cause environmental imbalances in soil, atmosphere, aquifers, rivers, and oceans. All surrounding ecosystems have been affected by excessive use of these products.
- Organic matter improves the surface structure by promoting the formation of aggregates that allow better aeration and water filtration.
- Increases the land’s capacity to hold moisture, reducing erosion and facilitating moisture maintenance for plants.


- Chemically, organic fertilizers balance the soil’s pH and promote microbiological activity, benefiting the decomposition of organic matter and the availability of nutrients for plants.
- Maintaining soil health and preventing erosion. The replenishment of organic matter benefits not only plants but also protects the soil. This type of natural fertilizers help maintain the biodiversity and composition of the soil, preventing compaction and improving its structure to retain liquids and nutrients. Additionally, the presence of organic matter reduces erosion caused by climatic factors or intensive agricultural activities, thus protecting the fertile layer of the ground and promoting long-term sustainability.
¿Para qué se puede usar un fertilizante orgánico?
Dos usos comunes

Agricultural Crops
Organic fertilizers are extensively used in agricultural plantations due to their benefits for the soil and plants. Fruit orchards and vineyards especially benefit from biological fertilizers, which provide essential nutrients for healthy growth and abundant production.

Sports Turf
The use of organic fertilizers on sports turf helps promote healthy, resilient, and sustainable grass growth, while reducing the negative environmental impact associated with synthetic fertilizers.
Organic fertilizers help improve the soil composition by increasing its capacity to retain liquids and nutrients, thus promoting a stronger and deeper root system in
the turf. The seaweed fertilizer Ficosterra-g from Ficosterra also helps increasethe turf’s resistance to abiotic stress.