English below Na agricultura regenerativa, na permacultura e na horticultura ecológica, há um princípio essencial que devemos seguir: o solo nunca deve estar nu. A natureza mostra-nos isso diariamente. Em florestas, campos e prados saudáveis, o solo está sempre coberto por folhas, raízes, musgo, galhos ou matéria em decomposição. Quando deixamos o solo exposto, quebramos esse equilíbrio, enfraquecendo a vida que ali existe. Cobrir o solo é mais do que proteger: é nutrir, hidratar, acolher vida e regenerar. É trabalhar com os ritmos da natureza, e não contra eles. Porquê cobrir o solo?
Tipos de coberturas de soloPodemos agrupar as coberturas em dois grandes tipos: mortas e vivas. Coberturas mortas (também chamadas mulch):
Dicas práticas
Cobrir o solo é talvez uma das práticas mais simples, económicas e poderosas que podemos adoptar para regenerar, proteger e fertilizar naturalmente a terra onde cultivamos. É uma prática ancestral, validada pela natureza, e essencial para uma agricultura viva e resiliente. Na horta, no pomar, nos caminhos ou nos sistemas agroflorestais, a cobertura de solo é um gesto de cuidado profundo com a vida invisível que alimenta todas as outras. English
In regenerative agriculture, permaculture, and ecological horticulture, there is one essential principle we must follow: the soil should never be left bare. Nature shows us this every day. In forests, meadows, and healthy fields, the soil is always covered — by leaves, roots, moss, branches, or decomposing organic matter. When we leave the soil exposed, we disrupt this balance and weaken the life that depends on it. Covering the soil is more than protecting it: it’s about nourishing, hydrating, sheltering life, and regenerating. It’s working with nature’s rhythms — not against them. Why cover the soil?Reducing water evaporation Covering the soil protects it from direct sunlight, preserving moisture and drastically reducing the need for irrigation, especially during dry periods. Regulating soil temperature Covered soil warms up and cools down more slowly, offering a stable environment that supports healthy root development and microbial life. Preventing erosion Soil cover acts as a shield against the impact of rain and wind, protecting the topsoil layer, where most life and nutrients are concentrated. Boosting microbial activity By retaining moisture and avoiding temperature shock, cover creates the ideal environment for underground life: fungi, bacteria, earthworms, and other decomposers thrive, enriching the soil and building living fertility. Feeding fungi and microorganisms Decomposing plant matter is rich in carbon — the preferred food source for beneficial fungi and soil microbes. These organisms break down organic matter into nutrients accessible to plants, closing the fertility loop. Nature’s irrigation system The carbon in dry leaves, straw, or wood can absorb and retain water like a sponge, acting as a natural water reservoir. Just like on the forest floor, water infiltrates slowly and remains available for longer. Natural weed suppression By blocking sunlight, the cover prevents the germination of unwanted seeds. It’s an effective and chemical-free way to suppress spontaneous weeds. Habitat for biodiversity Beneath the cover, countless organisms live: insects, beetles, spiders, microbes, molluscs, and even amphibians. A covered soil is a living, dynamic habitat, vital for agricultural ecosystem balance. Continuous supply of organic matter As the cover decomposes, it slowly releases nutrients, improves soil structure, and increases long-term fertility. Types of soil coverSoil covers can be grouped into two main types: dead and living. Dead covers (also known as mulch):
Practical tips
Covering the soil is perhaps one of the simplest, most affordable, and most powerful practices we can adopt to regenerate, protect, and naturally fertilise the land we cultivate. It is an ancestral practice, validated by nature itself, and essential to resilient, living agriculture. Whether in vegetable gardens, orchards, paths, or agroforestry systems, soil cover is a gesture of deep care for the invisible life that nourishes all others.
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