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The sunflower is a crop that provides a great composition in gardens, as well as having various uses and qualities, and can even be used as biofuels, in other words, reducing pollution and mitigating the environmental impacts caused by burning fossil fuels. In order to produce sunflower seedlings, it is necessary to use a substrate, which requires an initial outlay to fund production, and it is also important which type of substrate provides the best conditions for the development of this crop and its various varieties. As there is a large amount of waste produced in the agro-industry, it can be reused as organic substrate, providing nutrients, saving money for small farmers and providing a viable and sustainable alternative for agricultural production.